National Library of Energy BETA

Sample records for welding shop instrumentation

  1. Development Shop | The Ames Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Development Shop The Ames Laboratory operates a complete machine shop. Our shop consists of the modern equipment needed to fabricate almost any conceivable device required for research project. If you have a need or any questions about the fabrication of items to support your mission in research please contact us. Our machining equipment includes: Lathes CNC Bridgeport Mills Shears Press Brake (for bending) EDM (Electronic Discharge Machining) Grinders Saws We are capable of welding nearly any

  2. Erosion Flume | Open Energy Information

    Open Energy Info (EERE)

    Real-Time Yes Test Services Test Services Yes On-Site fabrication capabilityequipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop Past...

  3. Kennedy Flume | Open Energy Information

    Open Energy Info (EERE)

    Real-Time Yes Test Services Test Services Yes On-Site fabrication capabilityequipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop Past...

  4. Environmental Flume | Open Energy Information

    Open Energy Info (EERE)

    Real-Time Yes Test Services Test Services Yes On-Site fabrication capabilityequipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop Past...

  5. University of Iowa Wave Basin | Open Energy Information

    Open Energy Info (EERE)

    Real-Time Yes Test Services Test Services Yes On-Site fabrication capabilityequipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop Past...

  6. Ice Towing Tank | Open Energy Information

    Open Energy Info (EERE)

    Real-Time Yes Test Services Test Services Yes On-Site fabrication capabilityequipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop Past...

  7. Small Towing Tank | Open Energy Information

    Open Energy Info (EERE)

    Real-Time Yes Test Services Test Services Yes On-Site fabrication capabilityequipment Machine shop, carpenter shop, welding shop, instrumentation and electronics shop Past...

  8. Shop Request - 88-Inch Cyclotron

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Shop Request Note: You must be logged in to your Berkeley Lab LDAP account to access the Shop Request Form. 88 Work Request Shop Request ‎(Responses)‎ Open Spreadsheet

  9. Solar Shop Australia | Open Energy Information

    Open Energy Info (EERE)

    Shop Australia Jump to: navigation, search Name: Solar Shop Australia Place: Adelaide, South Australia, Australia Zip: SA 5069 Sector: Renewable Energy Product: South...

  10. Process Waste Assessment - Paint Shop

    SciTech Connect (OSTI)

    Phillips, N.M.

    1993-06-01

    This Process Waste Assessment was conducted to evaluate hazardous wastes generated in the Paint Shop, Building 913, Room 130. Special attention is given to waste streams generated by the spray painting process because it requires a number of steps for preparing, priming, and painting an object. Also, the spray paint booth covers the largest area in R-130. The largest and most costly waste stream to dispose of is {open_quote}Paint Shop waste{close_quotes} -- a combination of paint cans, rags, sticks, filters, and paper containers. These items are compacted in 55-gallon drums and disposed of as solid hazardous waste. Recommendations are made for minimizing waste in the Paint Shop. Paint Shop personnel are very aware of the need to minimize hazardous wastes and are continuously looking for opportunities to do so.

  11. WELDING TORCH

    DOE Patents [OSTI]

    Correy, T.B.

    1961-10-01

    A welding torch into which water and inert gas are piped separately for cooling and for providing a suitable gaseous atmosphere is described. A welding electrode is clamped in the torch by a removable collet sleeve and a removable collet head. Replacement of the sleeve and head with larger or smaller sleeve and head permits a larger or smaller welding electrode to be substituted on the torch. (AEC)

  12. WELDING METHOD

    DOE Patents [OSTI]

    Cornell, A.A.; Dunbar, J.V.; Ruffner, J.H.

    1959-09-29

    A semi-automatic method is described for the weld joining of pipes and fittings which utilizes the inert gasshielded consumable electrode electric arc welding technique, comprising laying down the root pass at a first peripheral velocity and thereafter laying down the filler passes over the root pass necessary to complete the weld by revolving the pipes and fittings at a second peripheral velocity different from the first peripheral velocity, maintaining the welding head in a fixed position as to the specific direction of revolution, while the longitudinal axis of the welding head is disposed angularly in the direction of revolution at amounts between twenty minutas and about four degrees from the first position.

  13. Wonder Weld

    SciTech Connect (OSTI)

    2012-01-01

    Engineers at the U.S. Department of Energy's Princeton Plasma Physics Laboratory are using the process shown here to create a super-strong weld for the upgrade of a key component of the Lab's experimental nuclear fusion reactor.

  14. FormCampusMachineShopsLabs.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Highway Baton Rouge, Louisiana 70806 225-578-8887 225-578-6954 (Fax) Form for Campus Machine Shops and Labs Purchaser's Name Phone ...

  15. Tips: Shopping for Appliances | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Appliances Tips: Shopping for Appliances What's the real cost? Every appliance has two price tags -- the purchase price and the operating cost. Consider both when buying a new...

  16. Klamath County Shops Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Shops Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath County Shops Space Heating Low Temperature Geothermal Facility Facility Klamath...

  17. Narrow gap laser welding

    DOE Patents [OSTI]

    Milewski, J.O.; Sklar, E.

    1998-06-02

    A laser welding process including: (a) using optical ray tracing to make a model of a laser beam and the geometry of a joint to be welded; (b) adjusting variables in the model to choose variables for use in making a laser weld; and (c) laser welding the joint to be welded using the chosen variables. 34 figs.

  18. Narrow gap laser welding

    DOE Patents [OSTI]

    Milewski, John O.; Sklar, Edward

    1998-01-01

    A laser welding process including: (a) using optical ray tracing to make a model of a laser beam and the geometry of a joint to be welded; (b) adjusting variables in the model to choose variables for use in making a laser weld; and (c) laser welding the joint to be welded using the chosen variables.

  19. Weld pool oscillation during pulsed GTA welding

    SciTech Connect (OSTI)

    Aendenroomer, A.J.R.; Ouden, G. den

    1996-12-31

    This paper deals with weld pool oscillation during pulsed GTA welding and with the possibility to use this oscillation for in-process control of weld penetration. Welding experiments were carried out under different welding conditions. During welding the weld pool was triggered into oscillation by the normal welding pulses or by extra current pulses. The oscillation frequency was measured both during the pulse time and during the base time by analyzing the arc voltage variation using a Fast Fourier Transformation program. Optimal results are obtained when full penetration occurs during the pulse time and partial penetration during the base time. Under these conditions elliptical overlapping spot welds are formed. In the case of full penetration the weld pool oscillates in a low frequency mode (membrane oscillation), whereas in the case of partial penetration the weld pool oscillates in a high frequency mode (surface oscillation). Deviation from the optimal welding conditions occurs when high frequency oscillation is observed during both pulse time and base time (underpenetration) or when low frequency oscillation is observed during both pulse time and base time (overpenetration). In line with these results a penetration sensing system with feedback control was designed, based on the criterion that optimal weld penetration is achieved when two peaks are observed in the frequency distribution. The feasibility of this sensing system for orbital tube welding was confirmed by the results of experiments carried out under various welding conditions.

  20. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsAerosols

  1. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsOther

  2. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsRadiometric

  3. Tips: Shopping for Appliances | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Shopping for Appliances Tips: Shopping for Appliances What's the real cost? Every appliance has two price tags -- the purchase price and the operating cost. Consider both when buying a new appliance. What's the real cost? Every appliance has two price tags -- the purchase price and the operating cost. Consider both when buying a new appliance. When you're shopping for appliances, think of two price tags. The first one covers the purchase price -- think of it as a down payment. The second price

  4. Acceptance Test Procedure for New Pumping Instrumentation & Control Skid V

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-08-14

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designated as ''V''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  5. WELDING PROCESS

    DOE Patents [OSTI]

    Zambrow, J.; Hausner, H.

    1957-09-24

    A method of joining metal parts for the preparation of relatively long, thin fuel element cores of uranium or alloys thereof for nuclear reactors is described. The process includes the steps of cleaning the surfaces to be jointed, placing the sunfaces together, and providing between and in contact with them, a layer of a compound in finely divided form that is decomposable to metal by heat. The fuel element members are then heated at the contact zone and maintained under pressure during the heating to decompose the compound to metal and sinter the members and reduced metal together producing a weld. The preferred class of decomposable compounds are the metal hydrides such as uranium hydride, which release hydrogen thus providing a reducing atmosphere in the vicinity of the welding operation.

  6. WELDING APPARATUS

    DOE Patents [OSTI]

    Correy, T.B.; DeWitt, D.E.; Nelson, I.V.

    1963-04-23

    This patent covers an arrangement for replacing air in a welding chamber with an inert gas. This operation usually is time-consuming because of the tendency of the inert gas to mix with the air being removed from the welding chamber. The chamber is open at the bottom and has at its top a cover and a porous plate a little below the cover. The inert gas is admitted to the chamber through two screened openings in the cover. On passing through the porous plate, the gas acts as a piston extending across the chamber and moving downwardly to expel the air through the lower open end of the chamber, with a minimum of mixing with the air being expelled. (AEC)

  7. CRAD, Machine Shop Safe Operations Assessment Plan

    Broader source: Energy.gov [DOE]

    The purpose of this assessment is to verify that machine shop operators are provided a safe and healthful workplace which will reduce or prevent injuries, illnesses, and accidental losses.

  8. PowerPoint Presentation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    * Machine shop * LH lab * Power systems and computer shop * Diagnostics setup lab * Welding shop 5 Year 513-514 2003 Some C-Mod Specific Instrumentation * 360 TF joint...

  9. Comparison Between Keyhole Weld Model and Laser Welding Experiments...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Comparison Between Keyhole Weld Model and Laser Welding Experiments Citation Details In-Document Search Title: Comparison Between Keyhole Weld Model and Laser...

  10. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsAirborne Observations

  11. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsCloud Properties

  12. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsOcean Observations

  13. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsSatellite Observations

  14. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsSurface Meteorology

  15. Laser weld jig

    DOE Patents [OSTI]

    Van Blarigan, Peter (Livermore, CA); Haupt, David L. (Livermore, CA)

    1982-01-01

    A system is provided for welding a workpiece (10, FIG. 1) along a predetermined weld line (12) that may be of irregular shape, which includes the step of forming a lip (32) on the workpiece to extend parallel to the weld line, and moving the workpiece by engaging the lip between a pair of rotatable members (34, 36). Rotation of one of the members at a constant speed, causes the workpiece to move so that all points on the weld line sequentially pass a fixed point in space (17) at a constant speed, so that a laser welding beam can be directed at that fixed point to form a weld along the weld line. The workpiece can include a reuseable jig (24) forming the lip, and with the jig constructed to detachably hold parts (22, 20) to be welded at a position wherein the weld line of the parts extends parallel to the lip on the jig.

  16. Property:Building/FloorAreaShops | Open Energy Information

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaShops Jump to: navigation, search This is a property of type Number. Floor area for Shops Pages using the property...

  17. Energy Savers: Your One Stop Shop for Energy Efficiency Upgrades...

    Office of Environmental Management (EM)

    Your One Stop Shop for Energy Efficiency Upgrades Energy Savers: Your One Stop Shop for Energy Efficiency Upgrades This is a presentation from Energy Impact Illinois posted on the...

  18. Fusion welding process

    DOE Patents [OSTI]

    Thomas, Kenneth C.; Jones, Eric D.; McBride, Marvin A.

    1983-01-01

    A process for the fusion welding of nickel alloy steel members wherein a ferrite containing pellet is inserted into a cavity in one member and melted by a welding torch. The resulting weld nugget, a fusion of the nickel containing alloy from the members to be welded and the pellet, has a composition which is sufficiently low in nickel content such that ferrite phases occur within the weld nugget, resulting in improved weld properties. The steel alloys encompassed also include alloys containing carbon and manganese, considered nickel equivalents.

  19. Penetration in GTA welding

    SciTech Connect (OSTI)

    Heiple, C.R.; Burgardt, P.

    1990-01-01

    The size and shape of the weld bead produced in GTA welding depends on the magnitude and distribution of the energy incident on the workpiece surfaces as well as the dissipation of that energy in the workpiece. The input energy is largely controllable through the welding parameters selected, however the dissipation of that energy in the workpiece is less subject to control. Changes in energy dissipation can produce large changes in weld shape or penetration. Heat transport away from the weld pool is almost entirely by conduction, but heat transport in the weld pool is more complicated. Heat conduction through the liquid is an important component, but heat transport by convection (mass transport) is often the dominant mechanism. Convective heat transport is directional and changes the weld pool shape from that produced by conduction alone. Surface tension gradients are often the dominant forces driving fluid flow in GTA weld pools. These gradients are sensitive functions of weld pool chemistry and the energy input distribution to the weld. Experimental and theoretical work conducted primarily in the past decade has greatly enhanced our understanding of weld pool fluid flow, the forces which drive it, and its effects on weld pool shape. This work is reviewed here. While less common, changes in energy dissipation through the unmelted portion of the workpiece can also affect fusion zone shape or penetration. These effects are also described. 41 refs., 9 figs.

  20. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsDerived Quantities and Models

  1. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsSurface/Subsurface Properties

  2. Comparing Laser Welding Technologies with Friction Stir Welding for Production of Aluminum Tailor-Welded Blanks

    SciTech Connect (OSTI)

    Hovanski, Yuri; Carsley, John; Carlson, Blair; Hartfield-Wunsch, Susan; Pilli, Siva Prasad

    2014-01-15

    A comparison of welding techniques was performed to determine the most effective method for producing aluminum tailor-welded blanks for high volume automotive applications. Aluminum sheet was joined with an emphasis on post weld formability, surface quality and weld speed. Comparative results from several laser based welding techniques along with friction stir welding are presented. The results of this study demonstrate a quantitative comparison of weld methodologies in preparing tailor-welded aluminum stampings for high volume production in the automotive industry. Evaluation of nearly a dozen welding variations ultimately led to down selecting a single process based on post-weld quality and performance.

  3. WeldBraze Program

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    white2 ES&H Manual Welding & Brazing Program Supplement 1.0 Purpose This document has been written for all groups at Jefferson Lab that perform or contract welding and brazing operations in order to develop a single welding and brazing program that meets minimum requirements derived from national consensus standards. The safety of welders and brazers is covered in the body of ES&H Manual Chapter 6122 Hot Work (Welding, Cutting, Brazing, and Grinding) Safety Program whereas each weld

  4. Method for welding beryllium

    DOE Patents [OSTI]

    Dixon, Raymond D.; Smith, Frank M.; O'Leary, Richard F.

    1997-01-01

    A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces together. The aluminum alloy coated beryllium surfaces may be machined into a desired welding joint configuration before welding. The beryllium may be an alloy of beryllium or a beryllium compound. The aluminum alloy may comprise aluminum and silicon.

  5. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid V

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-05-18

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control. (PIC) skid designed as ''V''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  6. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid T

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-06-20

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designated as ''T''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  7. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid U

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-12-05

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''U''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  8. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid W

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-05-18

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''W''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  9. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid R

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-05-11

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''R''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  10. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid Q

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-03-27

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''Q''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  11. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid T

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-05-18

    This Acceptance Test Procedure (ATP) provides for the inspection and testing Of the new Pumping Instrumentation and Control (PIC) skid designed as ''T''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  12. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid P

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-03-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''P''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.

  13. Acceptance Test Procedure for New Pumping and Instrumentation Control Skid N

    SciTech Connect (OSTI)

    KOCH, M.R.

    1999-12-13

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping and Instrumentation Control (PIC) skid designed as ''N''. The ATP will be performed after the construction of the PIC skid in the shop.

  14. Acceptance Test Procedure for New Pumping and Instrumentation Control Skid L

    SciTech Connect (OSTI)

    KOCH, M.R.

    1999-10-11

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping and Instrumentation Control (PIC) skid designed as ''L''. The ATP will be performed after the construction of the PIC skid in the shop.

  15. Comparison Between Keyhole Weld Model and Laser Welding Experiments...

    Office of Scientific and Technical Information (OSTI)

    the effects that changes in incident power and various welding parameters had on weld geometry were investigated. In this report, the fusion zones of the laser welds are compared...

  16. January 2014 Cybersecurity Awareness Campaign - Secure Online Shopping |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 4 Cybersecurity Awareness Campaign - Secure Online Shopping January 2014 Cybersecurity Awareness Campaign - Secure Online Shopping The January 2014 Cybersecurity Awareness Campaign featured issues surrounding secure online shopping. For more information on privacy issues, contact Jerry Hanley at Jerry.Hanley@hq.doe.gov. For information on Supply Chain Risk Management, contact Sue Farrand at Susan.Farrand@hq.doe.gov. PDF icon Cybersecurity Front Burner Issue 15 PDF icon

  17. Energy Savers: Your One Stop Shop for Energy Efficiency Upgrades |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Your One Stop Shop for Energy Efficiency Upgrades Energy Savers: Your One Stop Shop for Energy Efficiency Upgrades This is a presentation from Energy Impact Illinois posted on the website of the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon Energy Savers from CNT Energy More Documents & Publications Energy Savers: A one-stop energy efficiency shop for multifamily building owners Energy Savers: Fireplaces

  18. Savannah River Site - Central Shops GW OU | Department of Energy

    Office of Environmental Management (EM)

    Central Shops GW OU Savannah River Site - Central Shops GW OU January 1, 2013 - 12:00pm Addthis US Department of Energy Groundwater Database Groundwater Master Report InstallationName, State: Savannah River Site, SC Responsible DOE Office: Savannah River Site Plume Name: Central Shops GW OU Remediation Contractor: Savannah River Nuclear Solutions, LLC PBS Number: 30 Report Last Updated: 2013 Contaminants Halogenated VOCs/SVOCs Present?: Yes VOC Name Concentration (ppb) Regulatory Driver Cleanup

  19. Dual wire welding torch and method

    DOE Patents [OSTI]

    Diez, Fernando Martinez; Stump, Kevin S.; Ludewig, Howard W.; Kilty, Alan L.; Robinson, Matthew M.; Egland, Keith M.

    2009-04-28

    A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient a second welding wire in a second welding wire orientation that is non-coplanar and divergent with respect to the first welding wire orientation. A method of welding includes moving a welding torch with respect to a workpiece joint to be welded. During moving the welding torch, a first welding wire is fed through a first welding wire guide defining a first welding wire orientation and a second welding wire is fed through a second welding wire guide defining a second welding wire orientation that is divergent and non-coplanar with respect to the first welding wire orientation.

  20. Electric arc welding gun

    DOE Patents [OSTI]

    Luttrell, Edward; Turner, Paul W.

    1978-01-01

    This invention relates to improved apparatus for arc welding an interior joint formed by intersecting tubular members. As an example, the invention is well suited for applications where many similar small-diameter vertical lines are to be welded to a long horizontal header. The improved apparatus includes an arc welding gun having a specially designed welding head which is not only very compact but also produces welds that are essentially free from rolled-over solidified metal. The welding head consists of the upper end of the barrel and a reversely extending electrode holder, or tip, which defines an acute angle with the barrel. As used in the above-mentioned example, the gun is positioned to extend upwardly through the vertical member and the joint to be welded, with its welding head disposed within the horizontal header. Depending on the design of the welding head, the barrel then is either rotated or revolved about the axis of the vertical member to cause the electrode to track the joint.

  1. Waste audit study: Automotive paint shops

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    This report presents the results of a waste-audit study of automotive paint shops. The study focuses on the types and quantities of wastes generated, treatment and disposal alternatives, and the potential for reducing the amount and/or toxicity of waste generated. The analysis of solvent waste minimization focused primarily on in-plant modifications (e.g., source reduction) to reduce the generation of solvent waste. Strict inventory control is the most-readily implementable approach. While in-house recycling is viable, it is usually only cost-effective for larger firms. Specific recommendations for waste reduction were made.

  2. DC arc weld starter

    DOE Patents [OSTI]

    Campiotti, Richard H. (Tracy, CA); Hopwood, James E. (Oakley, CA)

    1990-01-01

    A system for starting an arc for welding uses three DC power supplies, a high voltage supply for initiating the arc, an intermediate voltage supply for sustaining the arc, and a low voltage welding supply directly connected across the gap after the high voltage supply is disconnected.

  3. The effect of welding parameters on penetration in GTA welds

    SciTech Connect (OSTI)

    Shirali, A.A. ); Mills, K.C. )

    1993-07-01

    The effect of various welding parameters on the penetration of GTA welds has been investigated. Increases in welding speed were found to reduce penetration; however, increases in welding current were observed to increase the penetration in high sulfur (HS) casts and decrease penetration in low sulfur (LS) steels. Plots of penetration as a function of increasing linear energy (the heat supplied per unit length of weld) revealed a similar trend with increased penetration in HS casts, but the penetration in LS casts was unaffected by increases in linear energy. These results support the Burgardt-Heiple proposition that changes in welding parameters on penetration can be explained in terms of their effect, sequentially, on the temperature gradient and the Marangoni forces operating in the weld pool. Increases in arc length were found to decrease weld penetration regardless of the sulfur concentration of the steel, and the effects of electrode geometry and welding position on weld penetration were also investigated.

  4. Open | SpeedShop: An Open Source Infrastructure for Parallel Performance Analysis

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Schulz, Martin; Galarowicz, Jim; Maghrak, Don; Hachfeld, William; Montoya, David; Cranford, Scott

    2008-01-01

    Over the last decades a large number of performance tools has been developed to analyze and optimize high performance applications. Their acceptance by end users, however, has been slow: each tool alone is often limited in scope and comes with widely varying interfaces and workflow constraints, requiring different changes in the often complex build and execution infrastructure of the target application. We started the Open | SpeedShop project about 3 years ago to overcome these limitations and provide efficient, easy to apply, and integrated performance analysis for parallel systems. Open | SpeedShop has two different faces: it provides an interoperable tool set covering themore » most common analysis steps as well as a comprehensive plugin infrastructure for building new tools. In both cases, the tools can be deployed to large scale parallel applications using DPCL/Dyninst for distributed binary instrumentation. Further, all tools developed within or on top of Open | SpeedShop are accessible through multiple fully equivalent interfaces including an easy-to-use GUI as well as an interactive command line interface reducing the usage threshold for those tools.« less

  5. New Online Tool Creates One-Stop Shop for Federal Program Opportunitie...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Online Tool Creates One-Stop Shop for Federal Program Opportunities That Support Tribal Energy Development New Online Tool Creates One-Stop Shop for Federal Program Opportunities ...

  6. From Shop Floor to Top Floor: Best Business Practices in Energy...

    Open Energy Info (EERE)

    Shop Floor to Top Floor: Best Business Practices in Energy Efficiency Jump to: navigation, search Tool Summary LAUNCH TOOL Name: From Shop Floor to Top Floor: Best Business...

  7. Argonne/EPA system captures mercury from air in gold shops |...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Typical gold shop hood used to purify gold by superheating the goldmercury amalgam until the mercury vaporizes. The vaporized mercury is directed outside the shop into the open...

  8. Method for welding beryllium

    DOE Patents [OSTI]

    Dixon, R.D.; Smith, F.M.; O`Leary, R.F.

    1997-04-01

    A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces together. The aluminum alloy coated beryllium surfaces may be machined into a desired welding joint configuration before welding. The beryllium may be an alloy of beryllium or a beryllium compound. The aluminum alloy may comprise aluminum and silicon. 9 figs.

  9. Lienert named American Welding Society Fellow

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lienert Named American Welding Society Fellow Lienert named American Welding Society Fellow Lienert was inducted into the American Welding Society's 2012 Class of Fellows during...

  10. Weld Wire Investigation Summary

    SciTech Connect (OSTI)

    Cunningham, M.A.

    1999-03-22

    After GTA welding reservoir A production/process prove-in assemblies, X-ray examination detected a lack of sidewall fusion. After examining several possible causes, it was determined that the weld wire filler metal was responsible, particularly the wire cleaning process. The final conclusion was that the filler wire must be abrasively cleaned in a particular manner to perform as required. The abrasive process was incorporated into the wire material specification, ensuring consistency for all reservoir GTA welding at AlliedSignal Federal Manufacturing and Technologies (FM and T).

  11. APPARATUS FOR ARC WELDING

    DOE Patents [OSTI]

    Lingafelter, J.W.

    1960-04-01

    An apparatus is described in which a welding arc created between an annular electrode and a workpiece moves under the influence of an electromagnetic field about the electrode in a closed or annular path. This mode of welding is specially suited to the enclosing of nuclear-fuel slugs in a protective casing. For example, a uranium slug is placed in an aluminum can, and an aluminum closure is welded to the open end of the can along a closed or annular path conforming to the periphery of the end closure.

  12. ARM - Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (pdf, 420kb) Science Plan (pdf) Operations Plan (pdf, 144kb) Instruments Contacts News ARM Press Release (Feb. 26, 2007) Images flickrdots Instruments This plot shows the...

  13. Laser weld jig. [Patent application

    DOE Patents [OSTI]

    Van Blarigan, P.; Haupt, D.L.

    1980-12-05

    A system is provided for welding a workpiece along a predetermined weld line that may be of irregular shape, which includes the step of forming a lip on the workpiece to extend parallel to the weld line, and moving the workpiece by engaging the lip between a pair of rotatable members. Rotation of one of the members at a constant speed, causes the workpiece to move so that all points on the weld line sequentially pass a fixed point in space at a constant speed, so that a laser welding beam can be directed at that fixed point to form a weld along the weld line. The workpiece can include a reusable jig forming the lip, and with the jig constructed to detachably hold parts to be welded at a position wherein the weld line of the parts extends parallel to the lip on the jig.

  14. Weld failure detection

    DOE Patents [OSTI]

    Pennell, William E.; Sutton, Jr., Harry G.

    1981-01-01

    Method and apparatus for detecting failure in a welded connection, particrly applicable to not readily accessible welds such as those joining components within the reactor vessel of a nuclear reactor system. A preselected tag gas is sealed within a chamber which extends through selected portions of the base metal and weld deposit. In the event of a failure, such as development of a crack extending from the chamber to an outer surface, the tag gas is released. The environment about the welded area is directed to an analyzer which, in the event of presence of the tag gas, evidences the failure. A trigger gas can be included with the tag gas to actuate the analyzer.

  15. Friction stir welding tool

    DOE Patents [OSTI]

    Tolle; Charles R. , Clark; Denis E. , Barnes; Timothy A.

    2008-04-15

    A friction stir welding tool is described and which includes a shank portion; a shoulder portion which is releasably engageable with the shank portion; and a pin which is releasably engageable with the shoulder portion.

  16. Weld braze technique

    DOE Patents [OSTI]

    Kanne, Jr., William R. (Aiken, SC); Kelker, Jr., John W. (North Augusta, SC); Alexander, Robert J. (Aiken, SC)

    1982-01-01

    High-strength metal joints are formed by a combined weld-braze technique. A hollow cylindrical metal member is forced into an undersized counterbore in another metal member with a suitable braze metal disposed along the bottom of the counterbore. Force and current applied to the members in an evacuated chamber results in the concurrent formation of the weld along the sides of the counterbore and a braze along the bottom of the counterbore in one continuous operation.

  17. Concurrent ultrasonic weld evaluation system

    DOE Patents [OSTI]

    Hood, D.W.; Johnson, J.A.; Smartt, H.B.

    1987-12-15

    A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder is disclosed. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws. 5 figs.

  18. Concurrent ultrasonic weld evaluation system

    DOE Patents [OSTI]

    Hood, D.W.; Johnson, J.A.; Smartt, H.B.

    1985-09-04

    A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws.

  19. Concurrent ultrasonic weld evaluation system

    DOE Patents [OSTI]

    Hood, Donald W.; Johnson, John A.; Smartt, Herschel B.

    1987-01-01

    A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws.

  20. Fluid Flow Phenomena during Welding

    SciTech Connect (OSTI)

    Zhang, Wei

    2011-01-01

    MOLTEN WELD POOLS are dynamic. Liquid in the weld pool in acted on by several strong forces, which can result in high-velocity fluid motion. Fluid flow velocities exceeding 1 m/s (3.3 ft/s) have been observed in gas tungsten arc (GTA) welds under ordinary welding conditions, and higher velocities have been measured in submerged arc welds. Fluid flow is important because it affects weld shape and is related to the formation of a variety of weld defects. Moving liquid transports heat and often dominates heat transport in the weld pool. Because heat transport by mass flow depends on the direction and speed of fluid motion, weld pool shape can differ dramatically from that predicted by conductive heat flow. Temperature gradients are also altered by fluid flow, which can affect weld microstructure. A number of defects in GTA welds have been attributed to fluid flow or changes in fluid flow, including lack of penetration, top bead roughness, humped beads, finger penetration, and undercutting. Instabilities in the liquid film around the keyhole in electron beam and laser welds are responsible for the uneven penetration (spiking) characteristic of these types of welds.

  1. ProteinShop: A tool for interactive protein manipulation and...

    Office of Scientific and Technical Information (OSTI)

    ProteinShop may be used at different stages of a protein structure prediction process. ... Last, it serves as a visual framework to monitor and steer a protein structure prediction ...

  2. METHOD OF OBTAINING AN IMPROVED WELD IN INERT ARC WELDING

    DOE Patents [OSTI]

    Correy, T.B.

    1962-12-11

    A method is reported for inert arc welding. An a-c welding current is applied to the workpiece and welding electrode such that the positive portion of each cycle thereof, with the electrode positive, has only sufficient energy to clean the surface of the workpiece and the negative portion of each cycle thereof, with the electrode negative, contains the energy required to weld. (AEC)

  3. Friction Stir Welding of Lightweight Vehicle Structures: Final Report

    SciTech Connect (OSTI)

    Sanella, M L

    2008-08-31

    The purpose of this Cooperative Research and Development Agreement (CRADA) between UTBattelle, LLC and Ford Motor Company was to establish friction stir welding (FSW) and friction stir processing as viable options for use in construction of lightweight substructures for trucks and cars, including engine cradles, suspension sub frames, instrument panel supports, and intake manifolds.

  4. Passively damped vibration welding system and method (Patent...

    Office of Scientific and Technical Information (OSTI)

    Passively damped vibration welding system and method Title: Passively damped vibration welding system and method A vibration welding system includes a controller, welding horn, an ...

  5. Weld pool oscillation during GTA welding of mild steel

    SciTech Connect (OSTI)

    Xiao, Y.H.; Ouden, G. den . Dept. of Materials Science and Engineering)

    1993-08-01

    In this paper the results are reported of a study dealing with the oscillation behavior of weld pools in the case of GTA bead-on-plate welding of mild steel, Fe 360. During welding, the weld pool was brought into oscillation by applying short current pulses, and the oscillation frequency and amplitude were measured by monitoring the arc voltage. It was found that the oscillation of the partially penetrated weld pool is dominated by one of two different oscillation modes (Mode 1 and Mode 2) depending on the welding conditions, whereas the oscillation of the fully penetrated weld pool is characterized by a third oscillation mode (Mode 3). It is possible to maintain partially penetrated weld pool oscillation in Mode 1 by choosing appropriate welding conditions. Under these conditions, an abrupt decrease in oscillation frequency occurs when the weld pool transfers from partial penetration to full penetration. Thus, weld penetration can be in-process controlled by monitoring the oscillation frequency during welding.

  6. Certification of a weld produced by friction stir welding

    DOE Patents [OSTI]

    Obaditch, Chris; Grant, Glenn J

    2013-10-01

    Methods, devices, and systems for providing certification of friction stir welds are disclosed. A sensor is used to collect information related to a friction stir weld. Data from the sensor is compared to threshold values provided by an extrinsic standard setting organizations using a certification engine. The certification engine subsequently produces a report on the certification status of the weld.

  7. Robotic Welding and Inspection System

    SciTech Connect (OSTI)

    H. B. Smartt; D. P. Pace; E. D. Larsen; T. R. McJunkin; C. I. Nichol; D. E. Clark; K. L. Skinner; M. L. Clark; T. G. Kaser; C. R. Tolle

    2008-06-01

    This paper presents a robotic system for GTA welding of lids on cylindrical vessels. The system consists of an articulated robot arm, a rotating positioner, end effectors for welding, grinding, ultrasonic and eddy current inspection. Features include weld viewing cameras, modular software, and text-based procedural files for process and motion trajectories.

  8. Friction stir welding tool and process for welding dissimilar materials

    DOE Patents [OSTI]

    Hovanski, Yuri; Grant, Glenn J; Jana, Saumyadeep; Mattlin, Karl F

    2013-05-07

    A friction stir welding tool and process for lap welding dissimilar materials are detailed. The invention includes a cutter scribe that penetrates and extrudes a first material of a lap weld stack to a preselected depth and further cuts a second material to provide a beneficial geometry defined by a plurality of mechanically interlocking features. The tool backfills the interlocking features generating a lap weld across the length of the interface between the dissimilar materials that enhances the shear strength of the lap weld.

  9. Corrosion Resistant Cladding by YAG Laser Welding in Underwater Environment

    SciTech Connect (OSTI)

    Tsutomi Kochi; Toshio Kojima; Suemi Hirata; Ichiro Morita; Katsura Ohwaki

    2002-07-01

    It is known that stress-corrosion cracking (SCC) will occur in nickel-base alloys used in Reactor Pressure Vessel (RPV) and Internals of nuclear power plants. A SCC sensitivity has been evaluated by IHI in each part of RPV and Internals. There are several water level instrumentation nozzles installed in domestic BWR RPV. In water level instrumentation nozzles, 182 type nickel-base alloys were used for the welding joint to RPV. It is estimated the SCC potential is high in this joint because of a higher residual stress than the yield strength (about 400 MPa). This report will describe a preventive maintenance method to these nozzles Heat Affected Zone (HAZ) and welds by a corrosion resistant cladding (CRC) by YAG Laser in underwater environment (without draining a reactor water). There are many kinds of countermeasures for SCC, for example, Induction Heating Stress Improvement (IHSI), Mechanical Stress Improvement Process (MSIP) and so on. A YAG laser CRC is one of them. In this technology a laser beam is used for heat source and irradiated through an optical fiber to a base metal and SCC resistant material is used for welding wires. After cladding the HAZ and welds are coated by the corrosion resistant materials so their surfaces are improved. A CRC by gas tungsten arc welding (GTAW) in an air environment had been developed and already applied to a couple of operating plants (16 Nozzles). This method was of course good but it spent much time to perform because of an installation of some water-proof working boxes to make a TIG-weldability environment. CRC by YAG laser welding in underwater environment has superior features comparing to this conventional TIG method as follows. At the viewpoint of underwater environment, (1) an outage term reduction (no drainage water). (2) a radioactive exposure dose reduction for personnel. At that of YAG laser welding, (1) A narrower HAZ. (2) A smaller distortion. (3) A few cladding layers. A YAG laser CRC test in underwater environment was carried out in the different welding position, horizontal, vertical upward and downward. The soundness of cladding layers (about 3 mm) is confirmed in visual and penetration test, and cross section observation. In the application to the actual plants, it is preferable to reduce the start and end point numbers of beads with which a defect is easy to cause. Therefore a special welding equipment for a YAG laser CRC that could weld continuously was developed. (authors)

  10. Method and apparatus for assessing weld quality

    DOE Patents [OSTI]

    Smartt, Herschel B.; Kenney, Kevin L.; Johnson, John A.; Carlson, Nancy M.; Clark, Denis E.; Taylor, Paul L.; Reutzel, Edward W.

    2001-01-01

    Apparatus for determining a quality of a weld produced by a welding device according to the present invention includes a sensor operatively associated with the welding device. The sensor is responsive to at least one welding process parameter during a welding process and produces a welding process parameter signal that relates to the at least one welding process parameter. A computer connected to the sensor is responsive to the welding process parameter signal produced by the sensor. A user interface operatively associated with the computer allows a user to select a desired welding process. The computer processes the welding process parameter signal produced by the sensor in accordance with one of a constant voltage algorithm, a short duration weld algorithm or a pulsed current analysis module depending on the desired welding process selected by the user. The computer produces output data indicative of the quality of the weld.

  11. Method for welding chromium molybdenum steels

    DOE Patents [OSTI]

    Sikka, Vinod K.

    1986-01-01

    Chromium-molybdenum steels exhibit a weakening after welding in an area adjacent to the weld. This invention is an improved method for welding to eliminate the weakness by subjecting normalized steel to a partial temper prior to welding and subsequently fully tempering the welded article for optimum strength and ductility.

  12. Suspended Solids Profiler Shop Test Report

    SciTech Connect (OSTI)

    STAEHR, T.W.

    2000-01-19

    The Suspended Solids Profiler (SSP) Instrument is planned to be installed in the AZ-101 tank to measure suspended solids concentrations during mixer pump testing. The SSP sensor uses a reflectance measurement principle to determine the suspended solids concentrations. The purpose of this test is to provide a documented means of verifying that the functional components of the SSP operate properly.

  13. Dynamic strain gages analysis of critical welds used in power plant circuit breakers

    SciTech Connect (OSTI)

    MacDougall, E.A. ); Wilhelm, W.G. )

    1990-01-01

    A history of failures in power plant circuit breakers associated with critical welds in the internal pole shafts has been investigated. This paper describes the test, equipment, and instrumentation and summarized the preliminary results of testing performed on these breakers at Brookhaven National Laboratory. It includes the description of the instrumentation including the use of a full bridge strain gage sensor and instrumentation amplifier connected to an oscilloscope. The combination provided a sensitive instrument capable of revealing subtle changes in circuit breaker performance. The strain gages were attached to pole shafts and monitored dynamically. The observed changes in wave signature were recorded as a function of accumulated operating cycles. Complex changes in wave shape recorded on an oscillograph indicate patterns related to impending weld failure. The life expectancy measured in the number of circuit breaker open and closing cycles is compared with the weld and other component failures. 8 refs., 4 figs.

  14. VEE-0084- In the Matter of Gas’n Shop, Inc.

    Office of Energy Efficiency and Renewable Energy (EERE)

    On March 26, 2002, Gas’n Shop, Inc. (Gas’n Shop) of Lincoln, Nebraska filed an Application for Exception with the Office of Hearings and Appeals (OHA) of the Department of Energy (DOE). In its...

  15. Energy Savers: A one-stop energy efficiency shop for multifamily...

    Office of Environmental Management (EM)

    A one-stop energy efficiency shop for multifamily building owners Energy Savers: A one-stop energy efficiency shop for multifamily building owners This is a document from Energy...

  16. Green your Back to School Shopping List! | Department of Energy

    Energy Savers [EERE]

    your Back to School Shopping List! Green your Back to School Shopping List! August 23, 2013 - 10:06am Addthis Save energy and money while buying school supplies this year. | Photo courtesy of ©iStockphoto/Ls9907 Save energy and money while buying school supplies this year. | Photo courtesy of ©iStockphoto/Ls9907 Agatha Wein Communications Specialist, State Energy Program How can I participate? You can save energy and money this fall by simply reducing, reusing, and recycling school supplies.

  17. ProteinShop: A tool for interactive protein manipulation and steering

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect ProteinShop: A tool for interactive protein manipulation and steering Citation Details In-Document Search Title: ProteinShop: A tool for interactive protein manipulation and steering We describe ProteinShop, a new visualization tool that streamlines and simplifies the process of determining optimal protein folds. ProteinShop may be used at different stages of a protein structure prediction process. First, it can create protein configurations containing

  18. INERT GAS SHIELD FOR WELDING

    DOE Patents [OSTI]

    Jones, S.O.; Daly, F.V.

    1958-10-14

    S>An inert gas shield is presented for arc-welding materials such as zirconium that tend to oxidize rapidly in air. The device comprises a rectangular metal box into which the welding electrode is introduced through a rubber diaphragm to provide flexibility. The front of the box is provided with a wlndow having a small hole through which flller metal is introduced. The box is supplied with an inert gas to exclude the atmosphere, and with cooling water to promote the solidification of the weld while in tbe inert atmosphere. A separate water-cooled copper backing bar is provided underneath the joint to be welded to contain the melt-through at the root of the joint, shielding the root of the joint with its own supply of inert gas and cooling the deposited weld metal. This device facilitates the welding of large workpieces of zirconium frequently encountered in reactor construction.

  19. Lienert named American Welding Society Fellow

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lienert named American Welding Society Fellow November 29, 2012 Thomas J. Lienert of the Lab's Metallurgy group was inducted into the American Welding Society's 2012 Class of...

  20. Edison Welding Institute | Open Energy Information

    Open Energy Info (EERE)

    Welding Institute Jump to: navigation, search Name: Edison Welding Institute Address: 1250 Arthur E. Adams Drive Place: Columbus, Ohio Zip: 43221-3585 Sector: Efficiency, Services...

  1. ARM - Instrument -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    radar line up at the SGP site Instrument collections* at three fixed sites around the globe, two mobile facilities, and an aerial facility are operated by the ARM Climate...

  2. ARM Instrumentation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    999 Lightning Safety and ARM Instrumentation Last month we discussed the way lightning forms and then strikes. This month we will look at ways to protect ourselves and our property from the damaging threat of a lightning strike, as well as what ARM does to protect its array of scientific instrumentation and buildings. About Lightning Lightning packs a punch equal to 100 million volts of electricity, a force powerful enough to tear through roofs and explode walls and chimneys. A lightning strike

  3. Narrow groove welding gas diffuser assembly and welding torch

    DOE Patents [OSTI]

    Rooney, Stephen J.

    2001-01-01

    A diffuser assembly is provided for narrow groove welding using an automatic gas tungsten arc welding torch. The diffuser assembly includes a manifold adapted for adjustable mounting on the welding torch which is received in a central opening in the manifold. Laterally extending manifold sections communicate with a shield gas inlet such that shield gas supplied to the inlet passes to gas passages of the manifold sections. First and second tapered diffusers are respectively connected to the manifold sections in fluid communication with the gas passages thereof. The diffusers extend downwardly along the torch electrode on opposite sides thereof so as to release shield gas along the length of the electrode and at the distal tip of the electrode. The diffusers are of a transverse width which is on the order of the thickness of the electrode so that the diffusers can, in use, be inserted into a narrow welding groove before and after the electrode in the direction of the weld operation.

  4. Displaced electrode process for welding

    DOE Patents [OSTI]

    Heichel, L.J.

    1975-08-26

    A method is described for the butt-welding of a relatively heavy mass to a relatively small mass such as a thin-wall tube. In butt-welding heat is normally applied at the joint between the two pieces which are butt-welded together. The application of heat at the joint results in overheating the tube which causes thinning of the tube walls and porosity in the tube material. This is eliminated by displacing the welding electrode away from the seam toward the heavier mass so that heat is applied to the heavy mass and not at the butt seam. Examples of the parameters used in welding fuel rods are given. The cladding and end plugs were made of Zircalloy. The electrode used was of 2 percent thoriated tungsten. (auth)

  5. Autoclave test of inertia welded slugs

    SciTech Connect (OSTI)

    Peacock, H.B.

    1986-01-27

    Inertia welding (IW) is being evaluated as an alternative to gas-tungsten-arc (GTA) welding, for welding Mark 31 slugs. To demonstrate IW, 40 production (GTA) slugs rejected for pinholes and poor bonds were used. After welding, the slugs were autoclave tested. No autoclave failures occurred. (DLC)

  6. Method for controlling gas metal arc welding

    DOE Patents [OSTI]

    Smartt, Herschel B.; Einerson, Carolyn J.; Watkins, Arthur D.

    1989-01-01

    The heat input and mass input in a Gas Metal Arc welding process are controlled by a method that comprises calculating appropriate values for weld speed, filler wire feed rate and an expected value for the welding current by algorithmic function means, applying such values for weld speed and filler wire feed rate to the welding process, measuring the welding current, comparing the measured current to the calculated current, using said comparison to calculate corrections for the weld speed and filler wire feed rate, and applying corrections.

  7. Method for controlling gas metal arc welding

    DOE Patents [OSTI]

    Smartt, H.B.; Einerson, C.J.; Watkins, A.D.

    1987-08-10

    The heat input and mass input in a Gas Metal Arc welding process are controlled by a method that comprises calculating appropriate values for weld speed, filler wire feed rate and an expected value for the welding current by algorithmic function means, applying such values for weld speed and filler wire feed rate to the welding process, measuring the welding current, comparing the measured current to the calculated current, using said comparison to calculate corrections for the weld speed and filler wire feed rate, and applying corrections. 3 figs., 1 tab.

  8. Lienert named American Welding Society Fellow

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lienert Named American Welding Society Fellow Lienert named American Welding Society Fellow Lienert was inducted into the American Welding Society's 2012 Class of Fellows during the recent FABTECH meeting in Las Vegas, Nevada. November 29, 2012 Thomas J. Lienert Thomas J. Lienert Thomas J. Lienert has served the welding community and industry with great distinction as an individual who contributed significantly to the knowledge, science, and application of welding. Thomas J. Lienert of the Lab's

  9. Laser welding of fused quartz

    DOE Patents [OSTI]

    Piltch, Martin S.; Carpenter, Robert W.; Archer, III, McIlwaine

    2003-06-10

    Refractory materials, such as fused quartz plates and rods are welded using a heat source, such as a high power continuous wave carbon dioxide laser. The radiation is optimized through a process of varying the power, the focus, and the feed rates of the laser such that full penetration welds may be accomplished. The process of optimization varies the characteristic wavelengths of the laser until the radiation is almost completely absorbed by the refractory material, thereby leading to a very rapid heating of the material to the melting point. This optimization naturally occurs when a carbon dioxide laser is used to weld quartz. As such this method of quartz welding creates a minimum sized heat-affected zone. Furthermore, the welding apparatus and process requires a ventilation system to carry away the silicon oxides that are produced during the welding process to avoid the deposition of the silicon oxides on the surface of the quartz plates or the contamination of the welds with the silicon oxides.

  10. Control of Gas Tungsten Arc welding pool shape by trace element addition to the weld pool

    DOE Patents [OSTI]

    Heiple, C.R.; Burgardt, P.

    1984-03-13

    An improved process for Gas Tungsten Arc welding maximizes the depth/width ratio of the weld pool by adding a sufficient amount of a surface active element to insure inward fluid flow, resulting in deep, narrow welds. The process is especially useful to eliminate variable weld penetration and shape in GTA welding of steels and stainless steels, particularly by using a sulfur-doped weld wire in a cold wire feed technique.

  11. Holiday Shopping and Electric Vehicles | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Holiday Gifts for Energy Efficiency Holiday Gifts for Energy Efficiency December 18, 2013 - 3:58pm Addthis Energy-efficient light bulbs can make great energy-saving stocking stuffers. Energy-efficient light bulbs can make great energy-saving stocking stuffers. Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy How can I participate? Look for these energy-saving gifts while doing your holiday shopping this year. As the days get colder and

  12. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid V

    SciTech Connect (OSTI)

    KOCH, M.R.

    2000-07-25

    This Acceptance Test Procedure (ATP) verifies proper construction per the design drawings and tests for proper functioning of the Pumping Instrumentation and Control (PIC) skid ''V''. The scope section lists the systems and functions to be checked. This ATP will be performed at the Site Fabrication Services (SFS) shop upon completion of the construction of the PIC skid.

  13. Acceptance Test Procedure for New Pumping and Instrumentation Control Skid M

    SciTech Connect (OSTI)

    KOCH, M.R.

    1999-11-09

    This Acceptance Test Procedure (ATP) verifies proper construction per the design drawings and tests for proper functioning of the Pumping and Instrumentation Control (PIC) skid ''M''. The Scope section lists the systems and functions to be checked. This ATP will be performed at the Site Fabrication Service's (SFS) shop upon completion of construction of the PIC skid.

  14. ARM - Instrument - flask

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    elastomer-free air sample path Stainless steel welded manifolds Automated, motorized valve system Micro-processor controlled customizable program Sturdy travelshipping case ...

  15. Laser welding and post weld treatment of modified 9Cr-1MoVNb steel.

    SciTech Connect (OSTI)

    Xu, Z.

    2012-04-03

    Laser welding and post weld laser treatment of modified 9Cr-1MoVNb steels (Grade P91) were performed in this preliminary study to investigate the feasibility of using laser welding process as a potential alternative to arc welding methods for solving the Type IV cracking problem in P91 steel welds. The mechanical and metallurgical testing of the pulsed Nd:YAG laser-welded samples shows the following conclusions: (1) both bead-on-plate and circumferential butt welds made by a pulsed Nd:YAG laser show good welds that are free of microcracks and porosity. The narrow heat affected zone has a homogeneous grain structure without conventional soft hardness zone where the Type IV cracking occurs in conventional arc welds. (2) The laser weld tests also show that the same laser welder has the potential to be used as a multi-function tool for weld surface remelting, glazing or post weld tempering to reduce the weld surface defects and to increase the cracking resistance and toughness of the welds. (3) The Vicker hardness of laser welds in the weld and heat affected zone was 420-500 HV with peak hardness in the HAZ compared to 240 HV of base metal. Post weld laser treatment was able to slightly reduce the peak hardness and smooth the hardness profile, but failed to bring the hardness down to below 300 HV due to insufficient time at temperature and too fast cooling rate after the time. Though optimal hardness of weld made by laser is to be determined for best weld strength, methods to achieve the post weld laser treatment temperature, time at the temperature and slow cooling rate need to be developed. (4) Mechanical testing of the laser weld and post weld laser treated samples need to be performed to evaluate the effects of laser post treatments such as surface remelting, glazing, re-hardening, or tempering on the strength of the welds.

  16. Method for enhanced control of welding processes

    DOE Patents [OSTI]

    Sheaffer, Donald A.; Renzi, Ronald F.; Tung, David M.; Schroder, Kevin

    2000-01-01

    Method and system for producing high quality welds in welding processes, in general, and gas tungsten arc (GTA) welding, in particular by controlling weld penetration. Light emitted from a weld pool is collected from the backside of a workpiece by optical means during welding and transmitted to a digital video camera for further processing, after the emitted light is first passed through a short wavelength pass filter to remove infrared radiation. By filtering out the infrared component of the light emitted from the backside weld pool image, the present invention provides for the accurate determination of the weld pool boundary. Data from the digital camera is fed to an imaging board which focuses on a 100.times.100 pixel portion of the image. The board performs a thresholding operation and provides this information to a digital signal processor to compute the backside weld pool dimensions and area. This information is used by a control system, in a dynamic feedback mode, to automatically adjust appropriate parameters of a welding system, such as the welding current, to control weld penetration and thus, create a uniform weld bead and high quality weld.

  17. Method for enhanced control of welding processes

    SciTech Connect (OSTI)

    Sheaffer, D.A.; Renzi, R.F.; Tung, D.M.; Schroder, K.

    2000-07-04

    Method and system for producing high quality welds in welding processes, in general, and gas tungsten arc (GTA) welding, in particular by controlling weld penetration are disclosed. Light emitted from a weld pool is collected from the backside of a workpiece by optical means during welding and transmitted to a digital video camera for further processing, after the emitted light is first passed through a short wavelength pass filter to remove infrared radiation. By filtering out the infrared component of the light emitted from the backside weld pool image, the present invention provides for the accurate determination of the weld pool boundary. Data from the digital camera is fed to an imaging board which focuses on a 100 x 100 pixel portion of the image. The board performs a thresholding operation and provides this information to a digital signal processor to compute the backside weld pool dimensions and area. This information is used by a control system, in a dynamic feedback mode, to automatically adjust appropriate parameters of a welding system, such as the welding current, to control weld penetration and thus, create a uniform weld bead and high quality weld.

  18. Welding arc gap ionization device

    DOE Patents [OSTI]

    Schweikhardt, George M.

    1976-01-01

    An alpha emitting isotope is positioned near the tip of a TIG welding electrode so that the alpha radiation can provide an ionized path between the electrode and the workpiece.

  19. Pipe weld crown removal device

    DOE Patents [OSTI]

    Sword, Charles K.; Sette, Primo J.

    1992-01-01

    A device is provided for grinding down the crown of a pipe weld joining aligned pipe sections so that the weld is substantially flush with the pipe sections joined by the weld. The device includes a cage assembly comprising a pair of spaced cage rings adapted to be mounted for rotation on the respective pipe sections on opposite sides of the weld, a plurality of grinding wheels, supported by the cage assembly for grinding down the crown of the weld, and a plurality of support shafts, each extending longitudinally along the joined pipe sections, parallel thereto, for individually mounting respective grinding wheels. Each end of the support shafts is mounted for rotation in a bearing assembly housed within a radially directed opening in a corresponding one of the cage rings so as to provide radial movement of the associated shaft, and thus of the associated grinding wheel, towards and away from the weld. A first drive sprocket provides rotation of the cage assembly around the pipe sections while a second drive unit, driven by a common motor, provides rotation of the grinding wheels.

  20. Amber Plug-In for Protein Shop () | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Software: Amber Plug-In for Protein Shop Citation Details Software Request Title: Amber Plug-In for Protein Shop The Amber Plug-in for ProteinShop has two main components: an AmberEngine library to compute the protein energy models, and a module to solve the energy minimization problem using an optimization algorithm in the OPTI-+ library. Together, these components allow the visualization of the protein folding process in ProteinShop. AmberEngine is a object-oriented library to compute

  1. Upgraded HFIR Fuel Element Welding System

    SciTech Connect (OSTI)

    Sease, John D [ORNL

    2010-02-01

    The welding of aluminum-clad fuel plates into aluminum alloy 6061 side plate tubing is a unique design feature of the High Flux Isotope Reactor (HFIR) fuel assemblies as 101 full-penetration circumferential gas metal arc welds (GMAW) are required in the fabrication of each assembly. In a HFIR fuel assembly, 540 aluminum-clad fuel plates are assembled into two nested annular fuel elements 610 mm (24-inches) long. The welding process for the HFIR fuel elements was developed in the early 1960 s and about 450 HFIR fuel assemblies have been successfully welded using the GMAW process qualified in the 1960 s. In recent years because of the degradation of the electronic and mechanical components in the old HFIR welding system, reportable defects in plate attachment or adapter welds have been present in almost all completed fuel assemblies. In October 2008, a contract was awarded to AMET, Inc., of Rexburg, Idaho, to replace the old welding equipment with standard commercially available welding components to the maximum extent possible while maintaining the qualified HFIR welding process. The upgraded HFIR welding system represents a major improvement in the welding system used in welding HFIR fuel elements for the previous 40 years. In this upgrade, the new inner GMAW torch is a significant advancement over the original inner GMAW torch previously used. The innovative breakthrough in the new inner welding torch design is the way the direction of the cast in the 0.762 mm (0.030-inch) diameter aluminum weld wire is changed so that the weld wire emerging from the contact tip is straight in the plane perpendicular to the welding direction without creating any significant drag resistance in the feeding of the weld wire.

  2. Automatic monitoring of vibration welding equipment

    DOE Patents [OSTI]

    Spicer, John Patrick; Chakraborty, Debejyo; Wincek, Michael Anthony; Wang, Hui; Abell, Jeffrey A; Bracey, Jennifer; Cai, Wayne W

    2014-10-14

    A vibration welding system includes vibration welding equipment having a welding horn and anvil, a host device, a check station, and a robot. The robot moves the horn and anvil via an arm to the check station. Sensors, e.g., temperature sensors, are positioned with respect to the welding equipment. Additional sensors are positioned with respect to the check station, including a pressure-sensitive array. The host device, which monitors a condition of the welding equipment, measures signals via the sensors positioned with respect to the welding equipment when the horn is actively forming a weld. The robot moves the horn and anvil to the check station, activates the check station sensors at the check station, and determines a condition of the welding equipment by processing the received signals. Acoustic, force, temperature, displacement, amplitude, and/or attitude/gyroscopic sensors may be used.

  3. Repair welding of fusion reactor components

    SciTech Connect (OSTI)

    Chin, B.A.

    1993-05-15

    Experiments have shown that irradiated Type 316 stainless steel is susceptible to heat-affected-zone (HAZ) cracking upon cooling when welded using the gas tungsten arc (GTA) process under lateral constraint. The cracking has been hypothesized to be caused by stress-assisted helium bubble growth and rupture at grain boundaries. This study utilized an experimental welding setup which enabled different compressive stresses to be applied to the plates during welding. Autogenous GTA welds were produced in Type 316 stainless steel doped with 256 appm helium. The application of a compressive stress, 55 MPa, during welding suppressed the previously observed catastrophic cracking. Detailed examinations conducted after welding showed a dramatic change in helium bubble morphology. Grain boundary bubble growth along directions parallel to the weld was suppressed. Results suggest that stress-modified welding techniques may be used to suppress or eliminate helium-induced cracking during joining of irradiated materials.

  4. Pre-resistance-welding resistance check

    DOE Patents [OSTI]

    Destefan, Dennis E.; Stompro, David A.

    1991-01-01

    A preweld resistance check for resistance welding machines uses an open circuited measurement to determine the welding machine resistance, a closed circuit measurement to determine the parallel resistance of a workpiece set and the machine, and a calculation to determine the resistance of the workpiece set. Any variation in workpiece set or machine resistance is an indication that the weld may be different from a control weld.

  5. ARM - Instrument - prp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instrument Categories Radiometric The Portable Radiation Package (PRP) is an instrument suite to collect atmospheric radiation measurements on a moving platform. The instrument ...

  6. Percussive arc welding apparatus

    DOE Patents [OSTI]

    Hollar, Jr., Donald L.

    2002-01-01

    A percussive arc welding apparatus includes a generally cylindrical actuator body having front and rear end portions and defining an internal recess. The front end of the body includes an opening. A solenoid assembly is provided in the rear end portion in the internal recess of the body, and an actuator shaft assembly is provided in the front end portion in the internal recess of the actuator body. The actuator shaft assembly includes a generally cylindrical actuator block having first and second end portions, and an actuator shaft having a front end extending through the opening in the actuator body, and the rear end connected to the first end portion of the actuator block. The second end portion of the actuator block is in operational engagement with the solenoid shaft by a non-rigid connection to reduce the adverse rebound effects of the actuator shaft. A generally transversely extending pin is rigidly secured to the rear end of the shaft. One end of the pin is received in a slot in the nose housing sleeve to prevent rotation of the actuator shaft during operation of the apparatus.

  7. Intraluminal tissue welding for anastomosis

    DOE Patents [OSTI]

    Glinsky, M.; London, R.; Zimmerman, G.; Jacques, S.

    1998-10-27

    A method and device are provided for performing intraluminal tissue welding for anastomosis of a hollow organ. A retractable catheter assembly is delivered through the hollow organ and consists of a catheter connected to an optical fiber, an inflatable balloon, and a biocompatible patch mounted on the balloon. The disconnected ends of the hollow organ are brought together on the catheter assembly, and upon inflation of the balloon, the free ends are held together on the balloon to form a continuous channel while the patch is deployed against the inner wall of the hollow organ. The ends are joined or ``welded`` using laser radiation transmitted through the optical fiber to the patch. A thin layer of a light-absorbing dye on the patch can provide a target for welding. The patch may also contain a bonding agent to strengthen the bond. The laser radiation delivered has a pulse profile to minimize tissue damage. 8 figs.

  8. Intraluminal tissue welding for anastomosis

    DOE Patents [OSTI]

    Glinsky, Michael; London, Richard; Zimmerman, George; Jacques, Steven

    1998-10-27

    A method and device are provided for performing intraluminal tissue welding for anastomosis of a hollow organ. A retractable catheter assembly is delivered through the hollow organ and consists of a catheter connected to an optical fiber, an inflatable balloon, and a biocompatible patch mounted on the balloon. The disconnected ends of the hollow organ are brought together on the catheter assembly, and upon inflation of the balloon, the free ends are held together on the balloon to form a continuous channel while the patch is deployed against the inner wall of the hollow organ. The ends are joined or "welded" using laser radiation transmitted through the optical fiber to the patch. A thin layer of a light-absorbing dye on the patch can provide a target for welding. The patch may also contain a bonding agent to strengthen the bond. The laser radiation delivered has a pulse profile to minimize tissue damage.

  9. Study of Mechanical Properties and Characterization of Pipe Steel welded by Hybrid (Friction Stir Weld + Root Arc Weld) Approach

    SciTech Connect (OSTI)

    Lim, Yong Chae; Sanderson, Samuel; Mahoney, Murray; Wasson, Andrew J; Fairchild, Doug P; Wang, Yanli; Feng, Zhili

    2015-01-01

    Friction stir welding (FSW) has recently attracted attention as an alternative construction process for gas/oil transportation applications due to advantages compared to fusion welding techniques. A significant advantage is the ability of FSW to weld the entire or nearly the entire wall thickness in a single pass, while fusion welding requires multiple passes. However, when FSW is applied to a pipe or tube geometry, an internal back support anvil is required to resist the plunging forces exerted during FSW. Unfortunately, it may not be convenient or economical to use internal backing support due to limited access for some applications. To overcome this issue, ExxonMobil recently developed a new concept, combining root arc welding and FSW. That is, a root arc weld is made prior to FSW that supports the normal loads associated with FSW. In the present work, mechanical properties of a FSW + root arc welded pipe steel are reported including microstructure and microhardness.

  10. Optical penetration sensor for pulsed laser welding

    DOE Patents [OSTI]

    Essien, Marcelino; Keicher, David M.; Schlienger, M. Eric; Jellison, James L.

    2000-01-01

    An apparatus and method for determining the penetration of the weld pool created from pulsed laser welding and more particularly to an apparatus and method of utilizing an optical technique to monitor the weld vaporization plume velocity to determine the depth of penetration. A light source directs a beam through a vaporization plume above a weld pool, wherein the plume changes the intensity of the beam, allowing determination of the velocity of the plume. From the velocity of the plume, the depth of the weld is determined.

  11. Shimmed electron beam welding process

    DOE Patents [OSTI]

    Feng, Ganjiang; Nowak, Daniel Anthony; Murphy, John Thomas

    2002-01-01

    A modified electron beam welding process effects welding of joints between superalloy materials by inserting a weldable shim in the joint and heating the superalloy materials with an electron beam. The process insures a full penetration of joints with a consistent percentage of filler material and thereby improves fatigue life of the joint by three to four times as compared with the prior art. The process also allows variable shim thickness and joint fit-up gaps to provide increased flexibility for manufacturing when joining complex airfoil structures and the like.

  12. ARM - Campaign Instrument - 50rwp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstruments50rwp

  13. ARM - Campaign Instrument - ecmwfdiag

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Send Campaign Instrument : European Centre for Medium Range Weather Forecasts Diagnostic Analyses (ECMWFDIAG) Instrument Categories Derived Quantities and Models Campaigns...

  14. APPARATUS AND METHOD FOR ARC WELDING

    DOE Patents [OSTI]

    Noland, R.A.; Stone, C.C.

    1960-05-10

    An apparatus and method are given for forming a welding arc which is rotated by a magnetic field very rapidly about an annular electrode so that a weld is produced simultaneously over all points of an annular or closed path. This invention inhibits outgassing from the jacket of a fuel slug which is being welded by adjusting the pressure throughout the welding cycle to establish a balance between the gas pressure within the jacket and that of the atmosphere surrounding the jacket. Furthermore, an improved control of the magnetic field producing rotation of the welding arc is disclosed whereby this rotation is prevented from splashing about the metal being welded as the welding arc makes it molten.

  15. Stress corrosion cracking of welded Alloy 600 penetration mockups

    SciTech Connect (OSTI)

    Sarver, J.M.; Pathania, R.S.; Stuckey, K.; Fyfitch, S.; Gelpi, A.; Foucault, M.; Hunt, E.S.

    1995-12-31

    The primary water stress corrosion cracking (PWSCC) of Alloy 600 in components other than steam generators is a problem of increasing concern for nuclear power plants. Of greatest concern at the present time is the PWSCC of Alloy 600 vessel head penetrations. The common elements of these components are threefold: (1) the Alloy 600 material has a susceptible microstructure, (2) the Alloy 600 material is either a thick-walled tube or a bar which has been machined into a thick-walled tube, and (3) the Alloy 600 material has been welded into a structure such that high residual welding stresses exist in the postwelded Alloy 600 material. The objectives of the present program were to evaluate the PWSCC behavior of various configurations of welded Alloy 600 penetrations, and possible remedial measures which would prevent or retard PWSCC in these components. Mockups were instrumented to permit instantaneous remote sensing of through-wall cracking and were autoclave tested along with control C-rings in a doped steam environment. Following the test exposures, the mockups were split and examined to characterize the cracking morphology and the material microstructure. A Weibull distribution was used to analyze the time-to-failure results, and the observed cracking locations were compared to residual stress levels predicted by an elastic-plastic finite element analysis of the mockups.

  16. TAN Hot Shop and Support Facility Utilization Study

    SciTech Connect (OSTI)

    Picker, B.A.

    2001-11-16

    Impacts to the U.S. Department of Energy (DOE) complex caused by early closure (prior to 2018) and Demolition and Dismantlement (D and D) of the Test Area North (TAN) hot shop and its support facilities are explored in this report. Various possible conditions, such as Standby, Safe Store and Lay-up, that the facility may be placed in prior to eventually being turned over to D and D are addressed. The requirements, impacts, and implications to the facility and to the DOE Complex are discussed for each condition presented in the report. Some details of the report reference the Idaho National Engineering and Environmental Laboratory (INEEL) Spent Nuclear Fuel Life Cycle Baseline Plan, the INEEL 2000 Infrastructure Long Range Plan, and other internal INEEL reports.

  17. TAN HOT SHOP AND SUPPORT FACILITY UTILIZATION STUDY

    SciTech Connect (OSTI)

    Phillips, Ken Crawforth

    2001-11-01

    Impacts to the U.S. Department of Energy (DOE) complex caused by early closure (prior to 2018) and Demolition and Dismantlement (D&D) of the Test Area North (TAN) hot shop and its support facilities are explored in this report. Various possible conditions, such as Standby, Safe Store and Lay-up, that the facility may be placed in prior to eventually being turned over to D&D are addressed. The requirements, impacts, and implications to the facility and to the DOE Complex are discussed for each condition presented in the report. Some details of the report reference the Idaho National Engineering and Environmental Laboratory (INEEL) Spent Nuclear Fuel Life Cycle Baseline Plan, the INEEL 2000 Infrastructure Long Range Plan, and other internal INEEL reports.

  18. Pollution prevention opportunity assessment for Facilities Maintenance Team (FMT) paint shop.

    SciTech Connect (OSTI)

    Klossner, Kristin Ann

    2003-05-01

    This Pollution Prevention Opportunity Assessment (PPOA) was conducted for Sandia National Laboratories/California Facilities Maintenance Team Paint Shop Operations in August and September 2002. The primary purpose of this PPOA is to provide recommendations to assist Paint Shop personnel in reducing the generation of waste and improving the efficiency of their processes. This report contains a summary of the information collected and analyses performed and recommends options for implementation. The Sandia National Laboratories Pollution Prevention staff will continue to work with the Paint Shop to implement the recommendations.

  19. Modeling of Heat and Mass Transfer in Fusion Welding (Book) ...

    Office of Scientific and Technical Information (OSTI)

    Book: Modeling of Heat and Mass Transfer in Fusion Welding Citation Details In-Document Search Title: Modeling of Heat and Mass Transfer in Fusion Welding In fusion welding, parts...

  20. Passively damped vibration welding system and method

    DOE Patents [OSTI]

    Tan, Chin-An; Kang, Bongsu; Cai, Wayne W.; Wu, Tao

    2013-04-02

    A vibration welding system includes a controller, welding horn, an anvil, and a passive damping mechanism (PDM). The controller generates an input signal having a calibrated frequency. The horn vibrates in a desirable first direction at the calibrated frequency in response to the input signal to form a weld in a work piece. The PDM is positioned with respect to the system, and substantially damps or attenuates vibration in an undesirable second direction. A method includes connecting the PDM having calibrated properties and a natural frequency to an anvil of an ultrasonic welding system. Then, an input signal is generated using a weld controller. The method includes vibrating a welding horn in a desirable direction in response to the input signal, and passively damping vibration in an undesirable direction using the PDM.

  1. Method and device for frictional welding

    DOE Patents [OSTI]

    Peacock, Harold B.

    1992-01-01

    A method for friction welding that produces a seal having essentially no gas porosity, comprises two rotationally symmetric, generally cylindrical members, spaced apart and coaxially aligned, that are rotated with respect to each other and brought together under high pressure. One member is preferably a generally cylindrical cannister that stores uranium within its hollow walls. The other member is preferably a generally cylindrical, hollow weld ring. An annular channel formed in the weld ring functions as an internal flash trap and is uniquely designed so that substantially all of the welding flash generated from the friction welding is directed into the channel's recessed bottom. Also, the channel design limits distortion of the two members during the friction welding process, further contributing to the complete seal that is obtained.

  2. Method and device for frictional welding

    DOE Patents [OSTI]

    Peacock, H.B.

    1992-10-13

    A method is described for friction welding that produces a seal having essentially no gas porosity, comprises two rotationally symmetric, generally cylindrical members, spaced apart and coaxially aligned, that are rotated with respect to each other and brought together under high pressure. One member is preferably a generally cylindrical canister that stores uranium within its hollow walls. The other member is preferably a generally cylindrical, hollow weld ring. An annular channel formed in the weld ring functions as an internal flash trap and is uniquely designed so that substantially all of the welding flash generated from the friction welding is directed into the channel's recessed bottom. Also, the channel design limits distortion of the two members during the friction welding process, further contributing to the complete seal that is obtained. 5 figs.

  3. Method and device for frictional welding

    DOE Patents [OSTI]

    Peacock, H.B.

    1991-01-01

    A method for friction welding that produces a seal having essentially no gas porosity, comprises two rotationally symmetric, generally cylindrical members, spaced apart and coaxially aligned, that are rotated with respect to each other and brought together under high pressure. One member is preferably a generally cylindrical cannister that stores uranium within its hollow walls. The other member is preferably a generally cylindrical, hollow weld ring. An annular channel formed in the weld ring functions as an internal flash trap and is uniquely designed so that substantially all of the welding flash generated from the friction welding is directed into the channel`s recessed bottom. Also, the channel design limits distortion of the two members during the friction welding, process, further contributing to the complete seal that is obtained.

  4. Role of welding parameters in determining the geometrical appearance of weld pool

    SciTech Connect (OSTI)

    Kovacevic, R.; Cao, Z.N.; Zhang, Y.M.

    1996-10-01

    A three-dimensional numerical model is developed to describe the fluid flow and heat transfer in weld pools. Both full penetration and free deformation of the top and bottom weld pool surfaces are considered. Temperature distribution and fluid flow field are obtained. In order to analyze the influence of welding parameters on the geometrical appearance of weld pools, a normalized model is developed to characterize the geometrical appearance of weld pools. It is found that welding current can significantly affect the geometrical shape. When welding current increases, the curvature of the pool boundary at the trailing end increases. The effect of the welding speed on the geometrical appearance is slight, although its influence on the pool size is great. In the interest range of arc length (from 1 mm to 4 mm), the arc length can affect both the size and the shape of the weld pool. However, compared with the welding current and speed, its influences are much weaker, GTA welding experiments are performed to verify the validity of the numerical models. The appearance of weld pools was obtained by using machine vision and a high-shutter speed camera. It is found that the calculated results have a good agreement with the experimental ones.

  5. New Lighting Facts Label: Takes the Guess Work Out of Shopping...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    New Lighting Facts Label: Takes the Guess Work Out of Shopping for Light Bulbs January 25, 2012 - 5:52am Addthis Chris Stewart Senior Communicator at DOE's National Renewable ...

  6. From Shop Floor to Top Floor: Best Business Practices in Energy Efficiency

    Broader source: Energy.gov [DOE]

    This document is the presentation delivered on the Pew Center on Global Climate Change's report From Shop Floor to Top Floor: Best Business Practices in Energy Efficiency, which describes leading corporate energy efficiency programs.

  7. Multi-component Cu-Strengthened Steel Welding Simulations: Atom...

    Office of Scientific and Technical Information (OSTI)

    Steel Welding Simulations: Atom Probe Tomography and Synchrotron X-ray Diffraction Analyses Citation Details In-Document Search Title: Multi-component Cu-Strengthened Steel Welding ...

  8. Assessing Steel Pipeline and Weld Susceptibility to Hydrogen...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Assessing Steel Pipeline and Weld Susceptibility to Hydrogen Embrittlement Webinar Assessing Steel Pipeline and Weld Susceptibility to Hydrogen Embrittlement Webinar Access the ...

  9. Status Report: Characterization of Weld Residual Stresses on...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Status Report: Characterization of Weld Residual Stresses on Full Diameter SNF Interim Storage Canister Mockup Status Report: Characterization of Weld Residual Stresses on Full ...

  10. High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Evaluate the performance of best in class laser, laserhybrid and friction stir welding ... on geometric weld quality criteria, surface finish and formability Sept 2013 Progress ...

  11. Friction Stir Welding Aluminum for Lightweight Vehicles | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Friction Stir Welding Aluminum for Lightweight Vehicles Friction Stir Welding Aluminum for Lightweight Vehicles Addthis Description In this video, a researcher from Pacific ...

  12. Welding apparatus and methods for using ultrasonic sensing

    DOE Patents [OSTI]

    McJunkin, Timothy R.; Johnson, John A.; Larsen, Eric D.; Smartt, Herschel B.

    2006-08-22

    A welding apparatus using ultrasonic sensing is described and which includes a movable welder having a selectively adjustable welding head for forming a partially completed weld in a weld seam defined between adjoining metal substrates; an ultrasonic assembly borne by the moveable welder and which is operable to generate an ultrasonic signal which is directed toward the partially completed weld, and is further reflected from same; and a controller electrically coupled with the ultrasonic assembly and controllably coupled with the welding head, and wherein the controller receives information regarding the ultrasonic signal and in response to the information optimally positions the welding head relative to the weld seam.

  13. Low activated incore instrument

    DOE Patents [OSTI]

    Ekeroth, Douglas E.

    1994-01-01

    Instrumentation for nuclear reactor head-mounted incore instrumentation systems fabricated of low nuclear cross section materials (i.e., zirconium or titanium). The instrumentation emits less radiation than that fabricated of conventional materials.

  14. ARM - Instrument - htdma

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Humidified Tandem Differential Mobility Analyzer (HTDMA) Instrument Categories Aerosols This instrument...

  15. Low activated incore instrument

    DOE Patents [OSTI]

    Ekeroth, D.E.

    1994-04-19

    Instrumentation is described for nuclear reactor head-mounted incore instrumentation systems fabricated of low nuclear cross section materials (i.e., zirconium or titanium). The instrumentation emits less radiation than that fabricated of conventional materials. 9 figures.

  16. Welding the AT-400A Containment Vessel

    SciTech Connect (OSTI)

    Brandon, E.

    1998-11-01

    Early in 1994, the Department of Energy assigned Sandia National Laboratories the responsibility for designing and providing the welding system for the girth weld for the AT-400A containment vessel. (The AT-400A container is employed for the shipment and long-term storage of the nuclear weapon pits being returned from the nation's nuclear arsenal.) Mason Hanger Corporation's Pantex Plant was chosen to be the production facility. The project was successfully completed by providing and implementing a turnkey welding system and qualified welding procedure at the Pantex Plant. The welding system was transferred to Pantex and a pilot lot of 20 AT-400A containers with W48 pits was welded in August 1997. This document is intended to bring together the AT-400A welding system and product (girth weld) requirements and the activities conducted to meet those requirements. This document alone is not a complete compilation of the welding development activities but is meant to be a summary to be used with the applicable references.

  17. Improving Fatigue Performance of AHSS Welds

    SciTech Connect (OSTI)

    Feng, Zhili; Yu, Xinghua; Erdman, III, Donald L.; Wang, Yanli; Kelly, Steve; Hou, Wenkao; Yan, Benda; Wang, Zhifeng; Yu, Zhenzhen; Liu, Stephen

    2015-03-01

    Reported herein is technical progress on a U.S. Department of Energy CRADA project with industry cost-share aimed at developing the technical basis and demonstrate the viability of innovative in-situ weld residual stresses mitigation technology that can substantially improve the weld fatigue performance and durability of auto-body structures. The developed technology would be costeffective and practical in high-volume vehicle production environment. Enhancing weld fatigue performance would address a critical technology gap that impedes the widespread use of advanced high-strength steels (AHSS) and other lightweight materials for auto body structure light-weighting. This means that the automotive industry can take full advantage of the AHSS in strength, durability and crashworthiness without the concern of the relatively weak weld fatigue performance. The project comprises both technological innovations in weld residual stress mitigation and due-diligence residual stress measurement and fatigue performance evaluation. Two approaches were investigated. The first one was the use of low temperature phase transformation (LTPT) weld filler wire, and the second focused on novel thermo-mechanical stress management technique. Both technical approaches have resulted in considerable improvement in fatigue lives of welded joints made of high-strength steels. Synchrotron diffraction measurement confirmed the reduction of high tensile weld residual stresses by the two weld residual stress mitigation techniques.

  18. Welding shield for coupling heaters

    DOE Patents [OSTI]

    Menotti, James Louis

    2010-03-09

    Systems for coupling end portions of two elongated heater portions and methods of using such systems to treat a subsurface formation are described herein. A system may include a holding system configured to hold end portions of the two elongated heater portions so that the end portions are abutted together or located near each other; a shield for enclosing the end portions, and one or more inert gas inlets configured to provide at least one inert gas to flush the system with inert gas during welding of the end portions. The shield may be configured to inhibit oxidation during welding that joins the end portions together. The shield may include a hinged door that, when closed, is configured to at least partially isolate the interior of the shield from the atmosphere. The hinged door, when open, is configured to allow access to the interior of the shield.

  19. ARM - RHUBC II Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instruments Related Links RHUBC-II Home RHUBC Home ARM Field Campaigns Home ARM Data Discovery Browse Data Deployment Instruments Science Team RHUBC-II Wiki Site Tour News RHUBC-II Backgrounder (PDF, 300K) News & Press Images Experiment Planning RHUBC-II Proposal Abstract Science Plan (PDF, 267KB) Science Objectives Contacts Eli Mlawer, Principal Investigator Dave Turner, Principal Investigator RHUBC II Instruments RHUBC-II Instruments - Cerro Toco, Chile Guest Instruments Instrument

  20. FUSION WELDING METHOD AND APPARATUS

    DOE Patents [OSTI]

    Wyman, W.L.; Steinkamp, W.I.

    1961-01-17

    An apparatus for the fusion welding of metal pieces at a joint is described. The apparatus comprises a highvacuum chamber enclosing the metal pieces and a thermionic filament emitter. Sufficient power is applied to the emitter so that when the electron emission therefrom is focused on the joint it has sufficient energy to melt the metal pieces, ionize the metallic vapor abcve the molten metal, and establish an arc discharge between the joint and the emitter.

  1. WNR Instrument Contacts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instrument Contacts Name Flight Path Position Phone Pager Cell Ullmann, John 1FP14(DANCE) Instrument Scientist 667-2517 664-3523 Couture, Aaron 1FP14(DANCE) Instrument Assistant 667-1730 664-1163 Mosby, Shea 1FP14(DANCE) Instrument Assistant 665-5414 664-7412 Devlin, Matt 1FP12 Instrument Scientist 665-0421 664-5776 Tovesson, Fredrik 1FP12 Instrument Assistant 665-9652 500-5073 Nelson, Ron 1FP05 Instrument Scientist 667-7107 664-2191 690-4220 Devlin, Matt 1FP05 Instrument Assistant 665-0421

  2. ARM - Campaign Instrument - rcs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    at 1-888-ARM-DATA. Send Campaign Instrument : NREL Radiometer Characterization System (RCS) Instrument Categories Radiometric Campaigns Aerosol IOP Download Data Southern...

  3. ARM - Campaign Instrument - psr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    call us at 1-888-ARM-DATA. Send Campaign Instrument : Polarimetric Scanning Radiometer (PSR) Instrument Categories Radiometric, Surface Meteorology Campaigns Cloud LAnd Surface...

  4. ARM - Guest Instrument Facility

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    features a climate-controlled main building, an elevated instrument platform, and a concrete instrument patio, all of which are described in more detail below. Features Features...

  5. ARM - Campaign Instrument - mas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NASA MODIS Airborne Simulator (MAS) Instrument Categories Airborne Observations, Radiometric Campaigns Cloud LAnd...

  6. ARM - Instrument - usdarad

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    us a note below or call us at 1-888-ARM-DATA. Send Instrument : US Department of Agriculture (USDA) Radiation Monitoring Data (USDARAD) Instrument Categories Radiometric...

  7. ARM - Campaign Instrument - sam

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    or call us at 1-888-ARM-DATA. Send Campaign Instrument : Sun and Aureole Measurement (SAM) Instrument Categories Radiometric Campaigns CLASIC - SAM Support Download Data ...

  8. ARM - Instrument Handbooks

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    Instrument Full Name Instrument Short Name Date Last Updated Parsivel2 Laser Disdrometer ... Sky Imager IRSI 2016 ARM Mobile Facility Surface Meteorology AMFMET 2011 ARM Surface ...

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    us a note below or call us at 1-888-ARM-DATA. Send Instrument : Continuous Light Absorption Photometer (CLAP) Instrument Categories Aerosols The Continuous Light Absorption...

  10. ARM - Campaign Instrument - pdi

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    Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Phase Doppler Interferometer (PDI) Instrument Categories Airborne Observations, Cloud Properties...

  11. ARM - Instrument - ecmwfdiag

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    1-888-ARM-DATA. Send Instrument : European Centre for Medium Range Weather Forecasts Diagnostic Analyses (ECMWFDIAG) Instrument Categories Derived Quantities and Models General...

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    1-888-ARM-DATA. Send Campaign Instrument : Three Waveband Spectrally-agile Technique Sensor (TWST) Instrument Categories Atmospheric Profiling, Cloud Properties, Radiometric...

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    us at 1-888-ARM-DATA. Send Campaign Instrument : Millimeter-wave Imaging Radiometer (MIR) Instrument Categories Atmospheric Profiling, Radiometric Campaigns Millimeter-wave...

  14. Multi-mode ultrasonic welding control and optimization

    DOE Patents [OSTI]

    Tang, Jason C.H.; Cai, Wayne W

    2013-05-28

    A system and method for providing multi-mode control of an ultrasonic welding system. In one embodiment, the control modes include the energy of the weld, the time of the welding process and the compression displacement of the parts being welded during the welding process. The method includes providing thresholds for each of the modes, and terminating the welding process after the threshold for each mode has been reached, the threshold for more than one mode has been reached or the threshold for one of the modes has been reached. The welding control can be either open-loop or closed-loop, where the open-loop process provides the mode thresholds and once one or more of those thresholds is reached the welding process is terminated. The closed-loop control provides feedback of the weld energy and/or the compression displacement so that the weld power and/or weld pressure can be increased or decreased accordingly.

  15. Evaluating the SCC resistance of underwater welds in sodium tetrathionate

    SciTech Connect (OSTI)

    White, R.A.; Angeliu, T.M.

    1997-12-01

    The susceptibility of welds to stress corrosion cracking (SCC) is enhanced by the surface residual tensile stresses generated by the typical welding process. However, underwater plasma transferred arc (PTA) welding has been shown to produce compressive surface residual stresses, an encouraging result if repairs of cracked boiling water reactor (BWR) components are to be made without further endangering them to SCC. This program was designed to verify that underwater PTA welds are resistant to SCC and to determine if underwater PTA welding could mitigate SCC in potentially susceptible welds. This was achieved by exposing various welds on solution annealed (SA) and SA + thermally sensitized 304 stainless steel at 25 C in a solution of 1.5 gm/liter of sodium sulfide added to 0.05M sodium tetrathionate, titrated to a pH of 1.25 with H{sub 2}SO{sub 4}. The autogeneous welds were produced using gas tungsten arc (GTA) and plasma transferred arc (PTA) welding under atmospheric conditions, and PTA welding underwater. After 1 hour of sodium tetrathionate exposure, GTA and air PTA welds exhibited SCC while the underwater PTA weld heat affected zones were more resistant. Underwater PTA welds bisecting a GTA weld eliminated the cracking in the GTA weld heat affected zone under certain conditions. The lack of IG cracking in the region influenced by the underwater PTA weld is consistent with the measurement of compressive surface residual stresses inherent to the underwater welding process.

  16. Career Map: Instrumentation Coordinator

    Broader source: Energy.gov [DOE]

    The Wind Program's Career Map provides job description information for Instrumentation Coordinator positions.

  17. ARM - Site Instruments

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    Boundary FacilityInstruments SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Boundary Facilities Active Retired Active instruments are currently deployed at fixed or mobile facilities

  18. ARM - Site Instruments

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    Extended FacilityInstruments SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Extended Facilities Active Retired Active instruments are currently deployed at fixed or mobile facilities

  19. ARM - Site Instruments

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    Intermediate FacilityInstruments SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Intermediate Facilities Active Retired Active instruments are currently deployed at fixed or mobile

  20. Seal welded cast iron nuclear waste container

    DOE Patents [OSTI]

    Filippi, Arthur M.; Sprecace, Richard P.

    1987-01-01

    This invention identifies methods and articles designed to circumvent metallurgical problems associated with hermetically closing an all cast iron nuclear waste package by welding. It involves welding nickel-carbon alloy inserts which are bonded to the mating plug and main body components of the package. The welding inserts might be bonded in place during casting of the package components. When the waste package closure weld is made, the most severe thermal effects of the process are restricted to the nickel-carbon insert material which is far better able to accommodate them than is cast iron. Use of nickel-carbon weld inserts should eliminate any need for pre-weld and post-weld heat treatments which are a problem to apply to nuclear waste packages. Although the waste package closure weld approach described results in a dissimilar metal combination, the relative surface area of nickel-to-iron, their electrochemical relationship, and the presence of graphite in both materials will act to prevent any galvanic corrosion problem.

  1. Manual tube-to-tubesheet welding torch

    DOE Patents [OSTI]

    Kiefer, Joseph H.; Smith, Danny J.

    1982-01-01

    A welding torch made of a high temperature plastic which fits over a tube intermediate the ends thereof for welding the juncture between the tube and the back side of a tube plate and has a ballooned end in which an electrode, filler wire guide, fiber optic bundle, and blanketing gas duct are disposed.

  2. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Shouxian, ChinaInstruments Shouxian Deployment AMF Home Shouxian Home Data Plots and Baseline Instruments Experiment Planning Proposal Science Plan, (PDF, 1,257K) Outreach Fact Sheets English Version (PDF, 458K) Mandarin Version (PDF, 1230K) AMF Poster, Mandarin Version News Campaign Images Instruments : Shouxian, Anhui, China Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. Retired instruments were deployed

  3. What makes an electric welding arc perform its required function

    SciTech Connect (OSTI)

    Correy, T.B.

    1982-09-01

    The physics of direct current and alternating current welding arcs, the heat transfer of direct current welding arcs, the characteristics of dc welding and ac welding power supplies and recommendations for the procurement and maintenance of precision power supplies are discussed. (LCL)

  4. RCRA Facility Investigation/Remedial Investigation Report with the Baseline Risk Assessment for the 716-A Motor Shops Seepage Basin

    SciTech Connect (OSTI)

    Palmer, E.

    1997-08-25

    This document describes the RCRA Facility Investigation/Remedial Investigation/Baseline Risk Assessment of the 716-A Motor Shops Seepage Basin.

  5. PDC IC WELD FAILURE EVALUATION AND RESOLUTION

    SciTech Connect (OSTI)

    Korinko, P.; Howard, S.; Maxwell, D.; Fiscus, J.

    2012-04-16

    During final preparations for start of the PDCF Inner Can (IC) qualification effort, welding was performed on an automated weld system known as the PICN. During the initial weld, using a pedigree canister and plug, a weld defect was observed. The defect resulted in a hole in the sidewall of the canister, and it was observed that the plug sidewall had not been consumed. This was a new type of failure not seen during development and production of legacy Bagless Transfer Cans (FB-Line/Hanford). Therefore, a team was assembled to determine the root cause and to determine if the process could be improved. After several brain storming sessions (MS and T, R and D Engineering, PDC Project), an evaluation matrix was established to direct this effort. The matrix identified numerous activities that could be taken and then prioritized those activities. This effort was limited by both time and resources (the number of canisters and plugs available for testing was limited). A discovery process was initiated to evaluate the Vendor's IC fabrication process relative to legacy processes. There were no significant findings, however, some information regarding forging/anneal processes could not be obtained. Evaluations were conducted to compare mechanical properties of the PDC canisters relative to the legacy canisters. Some differences were identified, but mechanical properties were determined to be consistent with legacy materials. A number of process changes were also evaluated. A heat treatment procedure was established that could reduce the magnetic characteristics to levels similar to the legacy materials. An in-situ arc annealing process was developed that resulted in improved weld characteristics for test articles. Also several tack welds configurations were addressed, it was found that increasing the number of tack welds (and changing the sequence) resulted in decreased can to plug gaps and a more stable weld for test articles. Incorporating all of the process improvements for the actual can welding process, however, did not result in an improved weld geometry. Several possibilities for the lack of positive response exist, some of which are that (1) an insufficient number of test articles were welded under prototypic conditions, (2) the process was not optimized so that significant improvements were observable over the 'noise', and (3) the in-situ arc anneal closed the gap down too much so the can was unable to exhaust pressure ahead of the weld. Several operational and mechanical improvements were identified. The weld clamps were changed to a design consistent with those used in the legacy operations. A helium puff operation was eliminated; it is believed that this operation was the cause of the original weld defect. Also, timing of plug mast movement was found to correspond with weld irregularities. The timing of the movement was changed to occur during weld head travel between tacks. In the end a three sequential tack weld process followed by a pulse weld at the same current and travel speed as was used for the legacy processes was suggested for use during the IC qualification effort. Relative to legacy welds, the PDC IC weld demonstrates greater fluctuation in the region of the weld located between tack welds. However, canister weld response (canister to canister) is consistent and with the aid of the optical mapping system (for targeting the cut position) is considered adequate. DR measurements and METs show the PDC IC welds to have sufficient ligament length to ensure adequate canister pressure/impact capacity and to ensure adequate stub function. The PDC welding process has not been optimized as a result of this effort. Differences remain between the legacy BTC welds and the PDC IC weld, but these differences are not sufficient to prevent resumption of the current PDC IC qualification effort. During the PDC IC qualification effort, a total of 17 cans will be welded and a variety of tests/inspections will be performed. The extensive data collected during that qualification effort should be of a sufficient population to determ

  6. ARM - Instrument - soil

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Soil Measurement from the SGP (SOIL) Instrument Categories SurfaceSubsurface Properties...

  7. ARM - Instrument - dl

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    to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Doppler Lidar (DL) Instrument Categories Cloud Properties Picture of the Doppler Lidar...

  8. ARM - Campaign Instrument - maeri

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    govInstrumentsmaeri Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Marine AERI (MAERI) Instrument...

  9. ARM - Campaign Instrument - aot

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    govInstrumentsaot Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Aerosol Optical Thickness (AOT) Instrument...

  10. ARM - Campaign Instrument - hsi

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    govInstrumentshsi Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Hemispheric Sky Imager (HSI) Instrument...

  11. ARM - Campaign Instrument - ozone

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    govInstrumentsozone Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Ozone Monitor (OZONE) Instrument...

  12. ARM - Campaign Instrument - wsi

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    govInstrumentswsi Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Whole Sky Imager (WSI) Instrument...

  13. ARM - Campaign Instrument - gerbprobe

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    govInstrumentsgerbprobe Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Gerber Probe (GERBPROBE) Instrument...

  14. ARM - Campaign Instrument - mwrret

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    govInstrumentsmwrret Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : MWR Retrievals (MWRRET) Instrument...

  15. ARM - Campaign Instrument - cpi

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    govInstrumentscpi Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Cloud Particle Imager (CPI) Instrument...

  16. ARM - Campaign Instrument - radon

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    govInstrumentsradon Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Radon (RADON) Instrument Categories...

  17. ARM - Campaign Instrument - otter

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    govInstrumentsotter Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Twin Otter (OTTER) Instrument Categories...

  18. ARM - Campaign Instrument - wcm

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    govInstrumentswcm Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : water content meter (WCM) Instrument...

  19. ARM - Campaign Instrument - sfcflux

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    govInstrumentssfcflux Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Surface Flux (SFCFLUX) Instrument...

  20. ARM - Campaign Instrument - learjet

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    govInstrumentslearjet Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Lear Jet (LEARJET) Instrument...

  1. ARM - Campaign Instrument - eta

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    govInstrumentseta Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Eta Model Runs (ETA) Instrument Categories...

  2. ARM - Campaign Instrument - anemometer

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    govInstrumentsanemometer Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Anemometer (ANEMOMETER) Instrument...

  3. ARM - Campaign Instrument - aerinf

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    govInstrumentsaerinf Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : AERI Noise Filtered (AERINF) Instrument...

  4. ARM - Campaign Instrument - mfr

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    govInstrumentsmfr Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Multifilter Radiometer (MFR) Instrument...

  5. ARM - Campaign Instrument - cmh

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    govInstrumentscmh Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Chilled Mirror Hygrometer (CMH) Instrument...

  6. ARM - Instrument - masc

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    hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Multi-Angle Snowflake Camera (MASC) Instrument Categories Surface Meteorology Contact(s) Martin...

  7. ARM - Instrument - suomigps

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    Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : SuomiNet Global Positioning System (SUOMIGPS) Instrument Categories Atmospheric Profiling General Overview...

  8. ARM - Campaign Instrument - ssfr

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    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NASA Ames Solar Spectral Flux Radiometer (SSFR) Instrument Categories ...

  9. ARM - Campaign Instrument - asti

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    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Absolute Solar Transmittance Interferometer (ASTI) Instrument ...

  10. ARM - Instrument - sirs

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    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Solar and Infrared Radiation Station (SIRS) Instrument Categories Radiometric ...

  11. ARM - Instrument - asti

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    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Absolute Solar Transmittance Interferometer (ASTI) Instrument Categories ...

  12. ARM - Campaign Instrument - ldis

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    Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Laser Disdrometer (LDIS) Instrument Categories Surface Meteorology Campaigns Marine ARM GPCI ...

  13. ARM - Instrument - ldis

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    Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Laser Disdrometer (LDIS) Instrument Categories Surface Meteorology A laser disdrometer measures the reduction ...

  14. ARM - Instrument - okm

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    Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Oklahoma Mesonet (OKM) Instrument Categories Surface Meteorology General Overview The State of Oklahoma restricts ...

  15. ARM - Instrument - skyrad

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    to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Sky Radiometers on Stand for Downwelling Radiation (SKYRAD) Instrument Categories...

  16. ARM - Instrument - tsi

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    from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Total Sky Imager (TSI) Instrument Categories Cloud Properties Picture of the Total Sky Imager...

  17. ARM - Instrument - ebbr

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    to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Energy Balance Bowen Ratio Station (EBBR) Instrument Categories SurfaceSubsurface...

  18. ARM - Instrument - psap

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    Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Particle Soot Absorption Photometer (PSAP) Instrument Categories Aerosols A particle soot absorption...

  19. ARM - Instrument - tdma

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    to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Tandem Differential Mobility Analyzer (TDMA) Instrument Categories Aerosols Picture of the...

  20. ARM - Campaign Instrument - tsi

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    a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Total Sky Imager (TSI) Instrument Categories Cloud Properties Campaigns 2007 Cumulus Humilis Aerosol Process...

  1. ARM - Instrument - irsi

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Infra-Red Sky Imager (IRSI) Instrument Categories Cloud Properties, Radiometric Primary...

  2. ARM - Instrument - thwaps

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    to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Temperature, Humidity, Wind and Pressure Sensors (THWAPS) Instrument Categories Surface...

  3. ARM - Instrument - surthref

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    from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Surface Temperature and Humidity Reference System for Sondes (SURTHREF) Instrument Categories...

  4. ARM - Instrument - tps

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    us a note below or call us at 1-888-ARM-DATA. Send Instrument : Total Precipitation Sensor (TPS) Instrument Categories Surface Meteorology Picture of the Total Precipitation...

  5. ARM - Instrument - ksumeso

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    to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Kansas State University Mesonet (KSUMESO) Instrument Categories Surface Meteorology General...

  6. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AtlanticInstruments ENA Related Links Facilities and Instruments ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site ENA Fact Sheet (PDF, 512KB) Images Information for Guest Scientists Contacts Instruments : Eastern North Atlantic Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. ACSM Aerosol Chemical Speciation Monitor Aerosols Browse Plots Browse Data [ Single installation ] AOS

  7. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    InactiveInstruments NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts Instruments : Central Facility, Atqasuk AK Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. MFRSR Multifilter Rotating Shadowband Radiometer Radiometric

  8. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Manacapuru, Brazil Instruments Manacapuru Deployment AMF Home Manacapuru Home GOAMAZON Website Experiment Planning Abstract and Related Campaigns Science Plan (PDF, 1.4MB) Deployment Operations Baseline Instruments and Data Plots at the Archive Outreach News & Press GOAMAZON Blog Images Contacts Kim Nitschke, AMF Operations Scot Martin, Principal Investigator Instruments : Manacapuru, Amazonas, Brazil Active Retired Active instruments are currently deployed at fixed or mobile facilities or

  9. ARM - Site Instruments

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    Niamey, Niger, West AfricaInstruments Niamey Deployment AMF Home Niamey Home Data Plots and Baseline Instruments Rainfall Record (PDF) Publications List, (PDF) Experiment Planning RADAGAST Proposal Outreach Fact Sheets RADAGAST (PDF) Annual Climate Cycle in Niger, Africa (PDF) Posters AMF Poster, French Version We're Going to Sample the Sky in Africa! News Campaign Images AMMA International News Instruments : Niamey, Niger Active Retired Active instruments are currently deployed at fixed or

  10. ARM - Site Instruments

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    Oliktok Point, AlaskaInstruments Oliktok Deployment AMF Home Oliktok Home Deployment Operations Baseline Instruments and Data Plots at the Archive Outreach News & Press New Sites Fact Sheet (PDF, 1.6MB) Images Contacts Fred Helsel, AMF Operations Gijs de Boer, Principal Investigator Instruments : Oliktok Point, Alaska Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. AERI Atmospheric Emitted Radiance

  11. ARM - Site Instruments

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    FacilitiesAMF Deployment, Ganges Valley, IndiaInstruments Ganges Valley Deployment AMF Home Ganges Valley Home Data Plots and Baseline Instruments Campaign Images Experiment Planning GVAX Full Proposal Abstract and Related Campaigns Science Plan Field Campaign Report Outreach GVAX Backgrounder (PDF, 1.4MB) News Education Flyer (PDF, 2.1MB) AMF Poster, 2011 Images Contacts V. Rao Kotamarthi Instruments : Ganges Valley, India Active Retired Active instruments are currently deployed at fixed or

  12. ARM - Site Instruments

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    Point Reyes National Seashore, CaliforniaInstruments Point Reyes Deployment AMF Home Point Reyes Home Data Plots and Baseline Instruments Experiment Planning MASRAD Proposal Abstract and Related Campaigns Outreach Posters Climate Research at Point Reyes National Seashore (horizontal) Climate Research at Point Reyes National Seashore (vertical) News Campaign Images Instruments : Point Reyes CA, USA Active Retired Active instruments are currently deployed at fixed or mobile facilities or are

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    Steamboat Springs, ColoradoInstruments Steamboat Deployment AMF Home Steamboat Springs Home Storm Peak Lab Data Plots and Baseline Instruments Data Sets Experiment Planning STORMVEX Proposal Abstract and Related Campaigns Science Plan NWS Forecasting Plots Outreach STORMVEX Backgrounder (PDF, 1.6MB) News AMF2 STORMVEX Blog Images Contacts Gerald Mace Instruments : Steamboat Springs CO, USA Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available

  14. ARM - Site Instruments

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    govSitesNorth Slope of AlaskaNSA Barrow FacilityInstruments NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts Instruments : Central Facility, Barrow AK Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. AERI Atmospheric

  15. ARM - Site Instruments

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    Central FacilityInstruments SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Central Facility Active Retired Active instruments are currently deployed at fixed or mobile facilities or

  16. ARM - Site Instruments

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    Manus Site-InactiveInstruments TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Central Facility, Manus I., PNG Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. MPL Micropulse Lidar Cloud

  17. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nauru Site-InactiveInstruments TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Central Facility, Nauru Island Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. MFRSR Multifilter Rotating

  18. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Darwin Site-InactiveInstruments TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Central Facility, Darwin, Australia Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. MFRSR Multifilter

  19. New Lighting Facts Label: Takes the Guess Work Out of Shopping for Light

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bulbs | Department of Energy Lighting Facts Label: Takes the Guess Work Out of Shopping for Light Bulbs New Lighting Facts Label: Takes the Guess Work Out of Shopping for Light Bulbs January 25, 2012 - 5:52am Addthis Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory If you're like me, it sometimes feels overwhelming standing at the store and staring at a big wall of light bulbs, trying to understand all the lighting choices. With new lighting standards taking

  20. Recent progress on gas tungsten arc welding of vanadium alloys

    SciTech Connect (OSTI)

    Grossbeck, M.L.; King, J.F.; Alexander, D.J.

    1997-08-01

    Emphasis has been placed on welding 6.4 mm plate, primarily by gas tungsten arc (GTA) welding. The weld properties were tested using blunt notch Charpy testing to determine the ductile to brittle transition temperature (DBTT). Erratic results were attributed to hydrogen and oxygen contamination of the welds. An improved gas clean-up system was installed on the welding glove box and the resulting high purity welds had Charpy impact properties similar to those of electron beam welds with similar grain size. A post-weld heat treatment (PWHT) of 950{degrees}C for two hours did not improve the properties of the weld in cases where low concentrations of impurities were attained. Further improvements in the gas clean-up system are needed to control hydrogen contamination.

  1. Pulsed Magnetic Welding for Advanced Core and Cladding Steel

    SciTech Connect (OSTI)

    Cao, Guoping; Yang, Yong

    2013-12-19

    To investigate a solid-state joining method, pulsed magnetic welding (PMW), for welding the advanced core and cladding steels to be used in Generation IV systems, with a specific application for fuel pin end-plug welding. As another alternative solid state welding technique, pulsed magnetic welding (PMW) has not been extensively explored on the advanced steels. The resultant weld can be free from microstructure defects (pores, non-matallic inclusions, segregation of alloying elements). More specifically, the following objectives are to be achieved, 1) To design a suitable welding apparatus fixture, and optimize welding parameters for repeatable and acceptable joining of the fuel pin end-plug. The welding will be evaluated using tensile tests for lap joint weldments and helium leak tests for the fuel pin end-plug. 2) investigate the microstructural and mechanical properties changes in PMW weldments of proposed advanced core and cladding alloys. 3) Simulate the irradiation effects on the PWM weldments using ion irradiation.

  2. Method and apparatus for real time weld monitoring

    DOE Patents [OSTI]

    Leong, Keng H. (Lemont, IL); Hunter, Boyd V. (Bolingbrook, IL)

    1997-01-01

    An improved method and apparatus are provided for real time weld monitoring. An infrared signature emitted by a hot weld surface during welding is detected and this signature is compared with an infrared signature emitted by the weld surface during steady state conditions. The result is correlated with weld penetration. The signal processing is simpler than for either UV or acoustic techniques. Changes in the weld process, such as changes in the transmitted laser beam power, quality or positioning of the laser beam, change the resulting weld surface features and temperature of the weld surface, thereby resulting in a change in the direction and amount of infrared emissions. This change in emissions is monitored by an IR sensitive detecting apparatus that is sensitive to the appropriate wavelength region for the hot weld surface.

  3. The 'world's largest' Inconel waterwall weld overlay

    SciTech Connect (OSTI)

    MacLean, K.; Fournier, E.; Gomez-Grande, J.; Scandroli, T.

    2009-11-15

    An 11,000 square foot Inconel 655 weld repaired severe wastage caused by low NOx firing with coal/petcoke at the Belledune generating station in New Brunswick, Canada. 1 ref., 1 fig., 3 photos.

  4. Vibration welding system with thin film sensor

    DOE Patents [OSTI]

    Cai, Wayne W; Abell, Jeffrey A; Li, Xiaochun; Choi, Hongseok; Zhao, Jingzhou

    2014-03-18

    A vibration welding system includes an anvil, a welding horn, a thin film sensor, and a process controller. The anvil and horn include working surfaces that contact a work piece during the welding process. The sensor measures a control value at the working surface. The measured control value is transmitted to the controller, which controls the system in part using the measured control value. The thin film sensor may include a plurality of thermopiles and thermocouples which collectively measure temperature and heat flux at the working surface. A method includes providing a welder device with a slot adjacent to a working surface of the welder device, inserting the thin film sensor into the slot, and using the sensor to measure a control value at the working surface. A process controller then controls the vibration welding system in part using the measured control value.

  5. Welding - Friction Stir - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Industrial Technologies Industrial Technologies Find More Like This Return to Search Welding - Friction Stir Idaho National Laboratory Contact INL About This Technology Technology Marketing Summary Friction welding that uses a contact rotating tool creates frictional heating of an adjacent work piece. The process employs a mixer where the two pieces touch, an area called the plastic zone, to avoid the undesirable joining (e.g. alloying) of the two work pieces.Description First, a

  6. Optimization of Weld Conditions and Alloy Composition for Welding of Single-Crystal Nickel-Based Superalloys

    SciTech Connect (OSTI)

    Vitek, John Michael; David, Stan A; Babu, Sudarsanam S

    2007-01-01

    Calculations were carried out to identify optimum welding conditions and weld alloy compositions to avoid stray grain formation during welding of single-crystal nickel-based superalloys. The calculations were performed using a combination of three models: a thermal model to describe the weld pool shape and the local thermal gradient and solidification front velocity; a geometric model to identify the local active dendrite growth variant, and a nucleation and growth model to describe the extent of stray grain formation ahead of the advancing solidification front. Optimum welding conditions (low weld power, high weld speed) were identified from the model calculations. Additional calculations were made to determine potential alloy modifications that reduce the solidification temperature range while maintaining high gamma prime content. The combination of optimum weld conditions and alloy compositions should allow for weld repair of single-crystal nickel-based superalloys without sacrificing properties or performance.

  7. Welding development for V-Cr-Ti alloys

    SciTech Connect (OSTI)

    Goodwin, G.M.; King, J.F.

    1994-09-01

    Welds have been produced and characterized using the gas-tungsten arc (GTA) and electron beam (EB) welding processes. Thin sheet (0.75 mm) welds were made with three levels of interstitial contamination, and hardness and tensile properties were found to be strongly affected by oxygen pickup. Thick-section (6 mm) welds have been produced using both processes, and no embrittlement is experienced when high purity atmosphere is maintained. Metallographic examination shows a narrow, but coarse grained, heat affected zone for the GTA welds. Transition joint welding development between vanadium alloy and stainless steel has shown encouraging results.

  8. Thermocapillary and arc phenomena in stainless steel welds

    SciTech Connect (OSTI)

    Pierce, S.W.

    1993-10-01

    Goal was to study effect of power level and distribution on thermocapiilary-induced weld shape and of arc factors on weld shape. Thermocapillarity was apparent in both conduction mode EB welds and GTA welds, particularly in the former. A non-Gaussian arc distribution is suggested for accounting for the differences between the twoss processes. At higher current levels (200--300 A), plasma shear force also contributes to weld shape development. Evidence suggests that thermocapillary flow reversal is not a factor in normal GTA welds; EDB flow reversal occurs only at high power density levels where the keyhole mode is present.

  9. Towards Real Time Diagnostics of Hybrid Welding Laser/GMAW

    SciTech Connect (OSTI)

    Timothy Mcjunkin; Dennis C. Kunerth; Corrie Nichol; Evgueni Todorov; Steve Levesque; Feng Yu; Robert Danna Couch

    2013-07-01

    Methods are currently being developed towards a more robust system real time feedback in the high throughput process combining laser welding with gas metal arc welding. A combination of ultrasonic, eddy current, electronic monitoring, and visual techniques are being applied to the welding process. Initial simulation and bench top evaluation of proposed real time techniques on weld samples are presented along with the concepts to apply the techniques concurrently to the weld process. Consideration for the eventual code acceptance of the methods and system are also being researched as a component of this project. The goal is to detect defects or precursors to defects and correct when possible during the weld process.

  10. Aluminum Tailor-Welded Blanks for High Volume Automotive Applications

    SciTech Connect (OSTI)

    Hovanski, Yuri; Upadhyay, Piyush; Pilli, Siva Prasad; Carlson, Blair; Carsley, John; Hartfield-Wunsch, Susan; Eisenmenger, Mark

    2014-02-04

    A Design of Experiment based approach is used to systematically investigate relationships between 8 different welding factors (4 related to tool geometry, 4 related to weld process control) and resulting weld properties including strength, elongation and formability in 1.2mm-2mm thick friction stir welding of AA5182-O for TWB application. The factors that result in most significant effects are elucidated. The interactions between several key factors like plunge depth, tool tilt, pin feature and pin length on the overall weld quality is discussed. Appropriate levels of factors that lead to excellent weld properties are also identified.

  11. Towards real time diagnostics of Hybrid Welding Laser/GMAW

    SciTech Connect (OSTI)

    McJunkin, T. R.; Kunerth, D. C.; Nichol, C. I. [Idaho National Laboratory, Idaho Falls, ID 83415-3570 (United States); Todorov, E.; Levesque, S. [Edison Welding Institute, Columbus, OH (United States)

    2014-02-18

    Methods are currently being developed towards a more robust system real time feedback in the high throughput process combining laser welding with gas metal arc welding. A combination of ultrasonic, eddy current, electronic monitoring, and visual techniques are being applied to the welding process. Initial simulation and bench top evaluation of proposed real time techniques on weld samples are presented along with the concepts to apply the techniques concurrently to the weld process. Consideration for the eventual code acceptance of the methods and system are also being researched as a component of this project. The goal is to detect defects or precursors to defects and correct when possible during the weld process.

  12. Friction Stir Spot Welding of Advanced High Strength Steels

    SciTech Connect (OSTI)

    Hovanski, Yuri; Grant, Glenn J.; Santella, M. L.

    2009-11-13

    Friction stir spot welding techniques were developed to successfully join several advanced high strength steels. Two distinct tool materials were evaluated to determine the effect of tool materials on the process parameters and joint properties. Welds were characterized primarily via lap shear, microhardness, and optical microscopy. Friction stir spot welds were compared to the resistance spot welds in similar strength alloys by using the AWS standard for resistance spot welding high strength steels. As further comparison, a primitive cost comparison between the two joining processes was developed, which included an evaluation of the future cost prospects of friction stir spot welding in advanced high strength steels.

  13. Welding Behavior of Free Machining Stainless Steel

    SciTech Connect (OSTI)

    BROOKS,JOHN A.; ROBINO,CHARLES V.; HEADLEY,THOMAS J.; MICHAEL,JOSEPH R.

    2000-07-24

    The weld solidification and cracking behavior of sulfur bearing free machining austenitic stainless steel was investigated for both gas-tungsten arc (GTA) and pulsed laser beam weld processes. The GTA weld solidification was consistent with those predicted with existing solidification diagrams and the cracking response was controlled primarily by solidification mode. The solidification behavior of the pulsed laser welds was complex, and often contained regions of primary ferrite and primary austenite solidification, although in all cases the welds were found to be completely austenite at room temperature. Electron backscattered diffraction (EBSD) pattern analysis indicated that the nature of the base metal at the time of solidification plays a primary role in initial solidification. The solid state transformation of austenite to ferrite at the fusion zone boundary, and ferrite to austenite on cooling may both be massive in nature. A range of alloy compositions that exhibited good resistance to solidification cracking and was compatible with both welding processes was identified. The compositional range is bounded by laser weldability at lower Cr{sub eq}/Ni{sub eq} ratios and by the GTA weldability at higher ratios. It was found with both processes that the limiting ratios were somewhat dependent upon sulfur content.

  14. Curtis Instruments | Open Energy Information

    Open Energy Info (EERE)

    Instruments Jump to: navigation, search Logo: Curtis Instruments Name: Curtis Instruments Address: 200 Kisco Ave. Place: Mount Kisco, New York Zip: 10549 Region: Northeast - NY NJ...

  15. Predicting laser weld reliability with stochastic reduced-order models. Predicting laser weld reliability

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Emery, John M.; Field, Richard V.; Foulk, James W.; Karlson, Kyle N.; Grigoriu, Mircea D.

    2015-05-26

    Laser welds are prevalent in complex engineering systems and they frequently govern failure. The weld process often results in partial penetration of the base metals, leaving sharp crack-like features with a high degree of variability in the geometry and material properties of the welded structure. Furthermore, accurate finite element predictions of the structural reliability of components containing laser welds requires the analysis of a large number of finite element meshes with very fine spatial resolution, where each mesh has different geometry and/or material properties in the welded region to address variability. We found that traditional modeling approaches could not bemore » efficiently employed. Consequently, a method is presented for constructing a surrogate model, based on stochastic reduced-order models, and is proposed to represent the laser welds within the component. Here, the uncertainty in weld microstructure and geometry is captured by calibrating plasticity parameters to experimental observations of necking as, because of the ductility of the welds, necking – and thus peak load – plays the pivotal role in structural failure. The proposed method is exercised for a simplified verification problem and compared with the traditional Monte Carlo simulation with rather remarkable results.« less

  16. Predicting laser weld reliability with stochastic reduced-order models. Predicting laser weld reliability

    SciTech Connect (OSTI)

    Emery, John M.; Field, Richard V.; Foulk, James W.; Karlson, Kyle N.; Grigoriu, Mircea D.

    2015-05-26

    Laser welds are prevalent in complex engineering systems and they frequently govern failure. The weld process often results in partial penetration of the base metals, leaving sharp crack-like features with a high degree of variability in the geometry and material properties of the welded structure. Furthermore, accurate finite element predictions of the structural reliability of components containing laser welds requires the analysis of a large number of finite element meshes with very fine spatial resolution, where each mesh has different geometry and/or material properties in the welded region to address variability. We found that traditional modeling approaches could not be efficiently employed. Consequently, a method is presented for constructing a surrogate model, based on stochastic reduced-order models, and is proposed to represent the laser welds within the component. Here, the uncertainty in weld microstructure and geometry is captured by calibrating plasticity parameters to experimental observations of necking as, because of the ductility of the welds, necking – and thus peak load – plays the pivotal role in structural failure. The proposed method is exercised for a simplified verification problem and compared with the traditional Monte Carlo simulation with rather remarkable results.

  17. Fusion welding of a modern borated stainless steel

    SciTech Connect (OSTI)

    Robino, C.V.; Cieslak, M.J.

    1997-01-01

    Experiments designed to assess the fabrication and service weldability of 304B4A borated stainless steel were conducted. Welding procedures and parameters for manual gas tungsten arc (GTA) welding, autogenous electron beam (EB) welding and filler-added EB welding were developed and found to be similar to those for austenitic stainless steels. Following the procedure development, four test welds were produced and evaluated by microstructural analysis and Charpy impact testing. Further samples were used for determination of the postweld heat treatment (PWHT) response of the welds. The fusion zone structure of welds in this alloy consists of primary austenite dendrites with an interdendritic eutectic-like austenite/boride constituent. Welds also show an appreciable partially molten zone that consists of the austenite/boride eutectic surrounding unmelted austenite islands. The microstructure of the EB welds was substantially finer than that of the GTA welds, and boride coarsening was not observed in the solid state heat-affected zone (HAZ) of either weld type. The impact toughness of as-welded samples was found to be relatively poor, averaging less than 10 J for both GTA and EB welds. For fusion zone notched GTA and EB samples and centerline notched EB samples, fracture generally occurred along the boundary between the partially molten and solid-state regions of the HAZ. The results of the PWHT study were very encouraging, with typical values of the impact energy for HAZ notched samples approaching 40 J, or twice the minimum code-acceptable value.

  18. A Glove Box Enclosed Gas-Tungsten Arc Welding System

    SciTech Connect (OSTI)

    Reevr, E, M; Robino, C.V.

    1999-07-01

    This report describes an inert atmosphere enclosed gas-tungsten arc welding system which has been assembled in support of the MC2730, MC2730A and MC 3500 Radioisotope Thermoelectric Generator (RTG) Enhanced Surveillance Program. One goal of this program is to fabricate welds with microstructures and impurity levels which are similar to production heat source welds previously produced at Los Alamos National Laboratory and the Mound Facility. These welds will subsequently be used for high temperature creep testing as part of the overall component lifetime assessment. In order to maximize the utility of the welding system, means for local control of the arc atmosphere have been incorporated and a wide range of welding environments can easily be evaluated. The gas-tungsten arc welding system used in the assembly is computer controlled, includes two-axis and rotary motion, and can be operated in either continuous or pulsed modes. The system can therefore be used for detailed research studies of welding impurity effects, development of prototype weld schedules, or to mimic a significant range of production-like welding conditions. Fixturing for fabrication of high temperature creep test samples have been designed and constructed, and weld schedules for grip-tab and test welds have been developed. The microstructure of these welds have been evaluated and are consistent with those used during RTG production.

  19. Apparatus for maintaining aligment of a shrinking weld joint in an electron-beam welding operation

    DOE Patents [OSTI]

    Trent, J.B.; Murphy, J.L.

    1980-01-03

    The invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignement with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a bias means for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base in indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld joint with the electron beam during each welding pass.

  20. Apparatus for maintaining alignment of a shrinking weld joint in an electron-beam welding operation

    DOE Patents [OSTI]

    Trent, Jett B.; Murphy, Jimmy L.

    1981-01-01

    The present invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignment with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a biasing device for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base is indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld joint with the electron beam during each welding pass.

  1. ARM - Campaign Instrument - photoacoustic

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsphotoacoustic Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Photoacoustic Instrument (PHOTOACOUSTIC) Instrument Categories Aerosols Campaigns 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2007.06.04 - 2007.06.25 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various, including non-ARM sites,

  2. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pearl Harbor, Hawaii, to San Francisco, CaliforniaInstruments HI to CA Deployment AMF Home Hawaii to California Home Deployment Operations Baseline Instruments Experiment Planning ACAPEX Full Proposal Abstract and Related Campaigns Science Plan Backgrounder (PDF) Outreach News and Press Images Contacts L. Ruby Leung, Principal Investigator Nicki Hickmon, AMF Operations Paul Ortega, AMF Operations Beat Schmid, AAF Technical Director Instruments : ACAPEX (ARM Cloud Aerosol Precip Experiment)

  3. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    McMurdo Station, AntarcticaInstruments McMurdo Deployment AMF Home McMurdo Home Experiment Planning Abstract and Related Campaigns Science Plan AWARE Website Deployment Operations Baseline Instruments and Data Plots at the Archive Weather & Climate Support for the AWARE Project Outreach News & Press AWARE Log of Events Backgrounder (PDF, 1.5MB) Poster (JPEG, 1.3MB) Images Contacts Paul Ortega, AMF Operations Hanna Goss, Media Contact Dan Lubin, Principal Investigator Instruments : AWARE

  4. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    FacilitiesAMF Deployment, Black Forest, GermanyInstruments Black Forest Deployment AMF Home Black Forest Home Data Plots and Baseline Instruments CERA COPS Data University of Hohenheim COPS Website COPS Update, April 2009 Experiment Planning COPS Proposal Abstract and Related Campaigns Science Plan (PDF, 12.4M) Outreach COPS Backgrounder (PDF, 306K) Posters AMF Poster, German Vesion Researching Raindrops in the Black Forest News Campaign Images Instruments : Black Forest, Germany Active Retired

  5. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Los Angeles, California, to Honolulu, HawaiiInstruments LA to Honolulu Deployment AMF Home LA to Honolulu Home Deployment Operations Baseline Instruments and Data Plots at the Archive Science Plan (PDF, 1.7MB) Experiment Planning MAGIC Full Proposal Abstract and Related Campaigns Brookhaven National Laboratory MAGIC Website Outreach News & Press Backgrounder (PDF, 1.3MB) MAGIC Blog Images Contacts Nicki Hickmon, AMF Operations Ernie Lewis, Principal Investigator Instruments : MAGIC (Marine

  6. ARM - Instrument - brs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsbrs Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Broadband Radiometer Station (BRS) Instrument Categories Radiometric Output Value-Added Products This instrument is an input to the following value-added products, which provide improved measurements or derived quantities. 15swfanalbrs1long : Short Wave Flux Analysis: 15-min resolution on BRS data, Long algorithm

  7. ARM - Instrument - toms

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstoms Documentation TOMS : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Total Ozone Mapping Spectrometer (TOMS) Instrument Categories Satellite Observations General Overview Global data derived from the Total Ozone Mapping Spectrometer (TOMS) instrument on the Earth Probe satellite, consisting of daily values of aerosol index, ozone and reflectivity remapped into a

  8. Feasibility of correlating V-Cr-Ti alloy weld strength with weld chemistry. CRADA final report

    SciTech Connect (OSTI)

    Grossbeck, M.L.; Odom, R.W.

    1998-06-01

    The mechanical properties of refractory metals such as vanadium are determined to a large extent by the interstitial impurities in the alloy. In the case of welding, interstitial impurities are introduced in the welding process from the atmosphere and by dissolution of existing precipitates in the alloy itself. Because of the necessity of having an ultra-pure atmosphere, a vacuum chamber or a glove box is necessary. In the V-Cr-Ti system, the titanium serves as a getter to control the concentration of oxygen and nitrogen in solid solution in the alloy. In this project the secondary ion mass spectrometry (SIMS) technique was used to detect, measure, and map the spacial distribution of impurity elements in welds in the alloy V-4Cr-4Ti. An attempt was then made to correlate the concentrations and distributions of the impurities with mechanical properties of the welds. Mechanical integrity of the welds was determined by Charpy V-notch testing. Welds were prepared by the gas-tungsten-arc (GTA) method. Charpy testing established a correlation between weld impurity concentration and the ductile to brittle transition temperature (DBTT). Higher concentrations of oxygen resulted in a higher DBTT. An exception was noted in the case of a low-oxygen weld which had a high hydrogen concentration resulting in a brittle weld. The concentrations and distributions of the impurities determined by SIMS could not be correlated with the mechanical properties of the welds. This research supports efforts to develop fusion reactor first wall and blanket structural materials.

  9. ARM - Instrument - disdrometer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Australia retired retired Originating instrument has been retired at this location Contact(s) Mary Jane Bartholomew Brookhaven National Laboratory (631) 344-2444 bartholomew@bnl...

  10. ARM - Instrument - sacr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    : Scanning ARM cloud radar (SACR) Instrument Categories Cloud Properties Contact(s) Karen Johnson Brookhaven National Laboratory (631) 344-5952 kjohnson@bnl.gov Nitin...

  11. ARM - Instrument - rss-2

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be better than 5%, which includes calibration and instrument stability errors. Higher accuracy (1%) can be obtained when the responsivity is tied to the solar...

  12. ARM - Instrument - rss

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be better than 5%, which includes calibration and instrument stability errors. Higher accuracy (1%) can be obtained when the responsivity is tied to the solar...

  13. ARM - Instrument - precnet

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    considered scientifically relevant. Precipitation Locations Southern Great Plains SGP A1 Browse Data Whitewater, KS (ABLE) retired retired Originating instrument has been...

  14. ARM - Campaign Instrument - rl

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instrument Categories Aerosols, Atmospheric Profiling Campaigns Remote Cloud Sensing (RCS) Field Evaluation Download Data Southern Great Plains, 1994.04.01 - 1994.05.31...

  15. ARM - Campaign Instrument - wsicloud

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (WSICLOUD) Instrument Categories Cloud Properties Campaigns Remote Cloud Sensing (RCS) Field Evaluation Download Data Southern Great Plains, 1995.04.01 - 1995.05.31 The...

  16. ARM - Instrument - gps

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    : Global Positioning System (GPS) Note: gps is currently inactive andor retired. Active Dates 1970.01.01 - 1970.01.01 Instrument Categories Other General Overview Global...

  17. ARM - Campaign Instrument - dlh

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Laser Hygrometer (DLH) Instrument Categories Airborne Observations Campaigns ARM-FIRE Water Vapor Experiment Download Data Southern Great Plains, 2000.11.01 - 2000.12.31...

  18. ARM - Campaign Instrument - twrmr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mixing Ratio (TWRMR) Instrument Categories Atmospheric Profiling Campaigns Fall 1997 Water Vapor IOP Download Data Southern Great Plains, 1997.09.15 - 1997.10.05 Water...

  19. ARM - Instrument - sasze

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    building isolated from the elements. ... Data Highland Center, Cape Cod MA; AMF1 retired retired Originating instrument has been retired at this location ...

  20. ARM - Instrument Location Table

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Radar KASACR Ka ARM Zenith Radar KAZR Laser Disdrometer LDIS Multi-Angle Snowflake Camera MASC Automatic Weather Station MAWS Surface Meteorological Instrumentation MET ...

  1. ARM - Instrument - gvr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Geoscience and Remote Sensing 45(7): 2207-2215. Available Retrievals and Uncertainty Neural network retrievals of precipitable water vapor are available from this instrument as...

  2. ARM - Instrument - gvrp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    can be found in the instrument handbook. Available Retrievals and Uncertainty Neural network retrievals of precipitable water vapor and liquid water path are in...

  3. ARM - Instrument - nephelometer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Peak retired TMP S1 Browse Data U. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AOS retired Originating instrument has been retired at this location See Also...

  4. ARM - Instrument - twr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    installed on the towers are listed in section 7, Instrument Details, although only the TemperatureRelative HumidityVapor Pressure (TRHVP) measurements made on the SGP CF...

  5. ARM - Instrument - wpdn

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (WPDN) Instrument Categories Atmospheric Profiling General Overview Data from an array of wind profilers are provided from NOAA's Forecast Systems Laboratory (FSL) Demonstration...

  6. ARM - Instrument - stable

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    around the long axis of the ship (roll), short axis (pitch), and, for some instruments, vertical axis (yaw). ARM currently employs two types of stabilized platforms: one...

  7. ARM - Instrument - sonicwind

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instrument Categories Surface Meteorology Output Datastreams sonicwind2d : Horizontal wind speed and direction from ultrasonic wind sensor (Vaisala WS425), 2m above ground on...

  8. Apparent Welding Textures In Altered Pumice-Rich Rocks | Open...

    Open Energy Info (EERE)

    Apparent Welding Textures In Altered Pumice-Rich Rocks Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Apparent Welding Textures In Altered...

  9. Repair welding of fusion reactor components. Second year technical report

    SciTech Connect (OSTI)

    Chin, B.A.

    1993-05-15

    Experiments have shown that irradiated Type 316 stainless steel is susceptible to heat-affected-zone (HAZ) cracking upon cooling when welded using the gas tungsten arc (GTA) process under lateral constraint. The cracking has been hypothesized to be caused by stress-assisted helium bubble growth and rupture at grain boundaries. This study utilized an experimental welding setup which enabled different compressive stresses to be applied to the plates during welding. Autogenous GTA welds were produced in Type 316 stainless steel doped with 256 appm helium. The application of a compressive stress, 55 MPa, during welding suppressed the previously observed catastrophic cracking. Detailed examinations conducted after welding showed a dramatic change in helium bubble morphology. Grain boundary bubble growth along directions parallel to the weld was suppressed. Results suggest that stress-modified welding techniques may be used to suppress or eliminate helium-induced cracking during joining of irradiated materials.

  10. Technique to eliminate helium induced weld cracking in stainless steels

    SciTech Connect (OSTI)

    Chin-An Wang; Chin, B.A.; Grossbeck, M.L.

    1992-12-31

    Experiments have shown that Type 316 stainless steel is susceptible to heat-affected-zone (HAZ) cracking upon cooling when welded using the gas tungsten arc (GTA) process under lateral constraint. The cracking has been hypothesized to be caused by stress-assisted helium bubble growth and rupture at grain boundaries. This study utilized an experimental welding setup which enabled different compressive stresses to be applied to the plates during welding. Autogenous GTA welds were produced in Type 316 stainless steel doped with 256 appm helium. The application of a compressive stress, 55 Mpa, during welding suppressed the previously observed catastrophic cracking. Detailed examinations conducted after welding showed a dramatic change in helium bubble morphology. Grain boundary bubble growth along directions parallel to the weld was suppressed. Results suggest that stress-modified welding techniques may be used to suppress or eliminate helium-induced cracking during joining of irradiated materials.

  11. Friction Stir Spot Welding of Advanced High Strength Steels II...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Friction Stir Spot Welding of Advanced High Strength Steels II Friction Stir Spot Welding of Advanced High Strength Steels II 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle ...

  12. Promising Inspection Technique for Vehicle Welding Offers Efficient Alternative

    Broader source: Energy.gov [DOE]

    The average car uses more than 4,000 spot welds to hold its parts together. While manufacturers currently inspect the quality of welds by prying apart samples, Oak Ridge National Laboratory (ORNL)...

  13. Promising Inspection Technique for Vehicle Welding Offers Efficient...

    Broader source: Energy.gov (indexed) [DOE]

    non-destructive technology that could check all welds in real-time on the production line. ... In addition, checking materials real-time as they are being welded would allow ...

  14. Actively controlled vibration welding system and method (Patent) |

    Office of Scientific and Technical Information (OSTI)

    DOEPatents Actively controlled vibration welding system and method Title: Actively controlled vibration welding system and method A vibration welding system includes a controller, welding horn, an active material element, and anvil assembly. The assembly may include an anvil body connected to a back plate and support member. The element, e.g., a piezoelectric stack or shape memory alloy, is positioned with respect to the assembly. The horn vibrates in a desirable first direction to form a

  15. IR Spot Weld Inspect () | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Software: IR Spot Weld Inspect Citation Details Software Request Title: IR Spot Weld Inspect In automotive industry, destructive inspection of spot welds is still the mandatory quality assurance method due to the lack of efficient non-destructive evaluation (NDE) tools. However, it is costly and time-consuming. Recently at ORNL, a new NDE prototype system for spot weld inspection using infrared (IR) thermography has been developed to address this problem. This software contains all the key

  16. Plutonium metal and oxide container weld development and qualification

    SciTech Connect (OSTI)

    Fernandez, R.; Horrell, D.R.; Hoth, C.W.; Pierce, S.W.; Rink, N.A.; Rivera, Y.M.; Sandoval, V.D.

    1996-01-01

    Welds were qualified for a container system to be used for long-term storage of plutonium metal and oxide. Inner and outer containers are formed of standard tubing with stamped end pieces gas-tungsten-arc (GTA) welded onto both ends. The weld qualification identified GTA parameters to produce a robust weld that meets the requirements of the Department of Energy standard DOE-STD-3013-94, ``Criteria for the Safe Storage of Plutonium Metals and Oxides.``

  17. EERE Success Story-Promising Inspection Technique for Vehicle Welding

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Offers Efficient Alternative | Department of Energy Promising Inspection Technique for Vehicle Welding Offers Efficient Alternative EERE Success Story-Promising Inspection Technique for Vehicle Welding Offers Efficient Alternative April 22, 2015 - 2:06pm Addthis ORNL researcher Jian Chen works with the prototype weld inspection system licensed by Tennessee-based APLAIR Manufacturing Systems. ORNL researcher Jian Chen works with the prototype weld inspection system licensed by Tennessee-based

  18. ARM - Word Seek: Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instruments Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Word Seek: Instruments

  19. ARM - Instrument - mti

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmti Documentation MTI : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Multispectral Thermal Imager (MTI) Instrument Categories Surface/Subsurface Properties

  20. Effect of Post-Weld Heat Treatment on Creep Rupture Properties of Grade 91 Steel Heavy Section Welds

    SciTech Connect (OSTI)

    Li, Leijun

    2012-11-02

    This project will conduct a systematic metallurgical study on the effect of post-weld heat treatment (PWHT) on the creep rupture properties of P91 heavy section welds. The objective is to develop a technical guide for selecting PWHT parameters, and to predict expected creep-rupture life based on the selection of heat treatment parameters. The project consists of four interdependent tasks: Experimentally and numerically characterize the temperature fields of typical post-weld heat treatment procedures for various weld and joint configurations to be used in Gen IV systems. Characterize the microstructure of various regions, including the weld fusion zone, coarse-grain heat-affected zone, and fine-grain heat affected zone, in the welds that underwent the various welding and PWHT thermal histories. Conduct creep and creep-rupture testing of coupons extracted from actual and physically simulated welds. Establish the relationship among PWHT parameters, thermal histories, microstructure, creep, and creep-rupture properties.

  1. REAL TIME ULTRASONIC ALUMINUM SPOT WELD MONITORING SYSTEM

    SciTech Connect (OSTI)

    Regalado, W. Perez; Chertov, A. M.; Maev, R. Gr. [Institute for Diagnostic Imaging Research, Physics Department, University of Windsor, 292 Essex Hall, 401 Sunset Ave. N9B 3P4 Windsor, Ontario (Canada)

    2010-02-22

    Aluminum alloys pose several properties that make them one of the most popular engineering materials: they have excellent corrosion resistance, and high weight-to-strength ratio. Resistance spot welding of aluminum alloys is widely used today but oxide film and aluminum thermal and electrical properties make spot welding a difficult task. Electrode degradation due to pitting, alloying and mushrooming decreases the weld quality and adjustment of parameters like current and force is required. To realize these adjustments and ensure weld quality, a tool to measure weld quality in real time is required. In this paper, a real time ultrasonic non-destructive evaluation system for aluminum spot welds is presented. The system is able to monitor nugget growth while the spot weld is being made. This is achieved by interpreting the echoes of an ultrasound transducer located in one of the welding electrodes. The transducer receives and transmits an ultrasound signal at different times during the welding cycle. Valuable information of the weld quality is embedded in this signal. The system is able to determine the weld nugget diameter by measuring the delays of the ultrasound signals received during the complete welding cycle. The article presents the system performance on aluminum alloy AA6022.

  2. Apparatus for the concurrent inspection of partially completed welds

    DOE Patents [OSTI]

    Smartt, Herschel B.; Johnson, John A.; Larsen, Eric D.; Bitsoi, Rodney J.; Perrenoud, Ben C.; Miller, Karen S.; Pace, David P.

    2002-01-01

    An apparatus for the concurrent inspection of partially completed welds is described in which is utilized in combination with a moveable welder for forming a partially completed weld, and an ultrasonic generator mounted on a moveable welder in which is reciprocally moveable along a path of travel which is laterally disposed relative to the partially completed weld.

  3. Exposure Evaluation for Benzene, Lead and Noise in Vehicle and Equipment Repair Shops

    SciTech Connect (OSTI)

    Sweeney, Lynn C.

    2013-04-10

    An exposure assessment was performed at the equipment and vehicle maintenance repair shops operating at the U. S. Department of Energy Hanford site, in Richland, Washington. The maintenance shops repair and maintain vehicles and equipment used in support of the Hanford cleanup mission. There are three general mechanic shops and one auto body repair shop. The mechanics work on heavy equipment used in construction, cranes, commercial motor vehicles, passenger-type vehicles in addition to air compressors, generators, and farm equipment. Services include part fabrication, installation of equipment, repair and maintenance work in the engine compartment, and tire and brake services. Work performed at the auto body shop includes painting and surface preparation which involves applying body filler and sanding. 8-hour time-weighted-average samples were collected for benzene and noise exposure and task-based samples were collected for lead dust work activities involving painted metal surfaces. Benzene samples were obtained using 3M™ 3520 sampling badges and were analyzed for additional volatile organic compounds. These compounds were selected based on material safety data sheet information for the aerosol products used by the mechanics for each day of sampling. The compounds included acetone, ethyl ether, toluene, xylene, VM&P naphtha, methyl ethyl ketone, and trichloroethylene. Laboratory data for benzene, VM&P naphtha, methyl ethyl ketone and trichloroethylene were all below the reporting detection limit. Airborne concentrations for acetone, ethyl ether, toluene and xylene were all less than 10% of their occupational exposure limit. The task-based samples obtained for lead dusts were submitted for a metal scan analysis to identify other metals that might be present. Laboratory results for lead dusts were all below the reporting detection limit and airborne concentration for the other metals observed in the samples were less than 10% of the occupational exposure limit. Noise dosimetry sampling was performed on a random basis and was representative of the different work activities within the four shops. Twenty three percent of the noise samples exceeded the occupational exposure limit of 85 decibels for an 8-hour time-weightedaverage. Work activities where noise levels were higher included use of impact wrenches and grinding wheels.

  4. Weld overlay coatings for erosion control

    SciTech Connect (OSTI)

    Levin, B.; DuPont, J.N.; Marder, A.R.

    1993-03-03

    A literature review was made. In spite of similarities between abrasive wear and solid particle erosion, weld overlay hardfacing alloys that exhibit high abrasion resistance may not necessarily have good erosion resistance. The performance of weld overlay hardfacing alloys in erosive environments has not been studied in detail. It is believed that primary-solidified hard phases such as carbides and intermetallic compounds have a strong influence on erosion resistance of weld overlay hardfacing alloys. However, relationships between size, shape, and volume fraction of hard phases in a hardfacing alloys and erosion resistance were not established. Almost all hardfacing alloys can be separated into two major groups based upon chemical compositions of the primary solidified hard phases: (a) carbide hardening alloys (Co-base/carbide, WC-Co and some Fe base superalloys); and (b) intermetallic hardening alloys (Ni-base alloys, austenitic steels, iron-aluminides).

  5. Actively controlled vibration welding system and method

    DOE Patents [OSTI]

    Cai, Wayne W.; Kang, Bongsu; Tan, Chin-An

    2013-04-02

    A vibration welding system includes a controller, welding horn, an active material element, and anvil assembly. The assembly may include an anvil body connected to a back plate and support member. The element, e.g., a piezoelectric stack or shape memory alloy, is positioned with respect to the assembly. The horn vibrates in a desirable first direction to form a weld on a work piece. The element controls any vibrations in a second direction by applying calibrated response to the anvil body in the second direction. A method for controlling undesirable vibrations in the system includes positioning the element with respect to the anvil assembly, connecting the anvil body to the support member through the back plate, vibrating the horn in a desirable first direction, and transmitting an input signal to the element to control vibration in an undesirable second direction.

  6. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hyytiälä, FinlandInstruments Hyytiälä Deployment AMF Home Hyytiälä Home Experiment Planning Abstract and Related Campaigns Science Plan Deployment Operations Baseline Instruments and Data Plots at the Archive BAECC Instruments AMF2 Management and Operations Outreach News & Press BAECC Blog Backgrounder (PDF, 1.5MB) Poster (JPEG, 1.3MB) Education Flyer (English) (PDF, 1.3MB) Education Flyer (Finnish) (PDF, 1.3MB) Images Contacts Nicki Hickmon, AMF Operations Tuukka Petäjä, Principal

  7. Central Shops Burning/Rubble Pit 631-6G Additonal Sampling and Monitor Well Installation Report

    SciTech Connect (OSTI)

    Palmer, E.

    1995-02-01

    The Central Shops Burning/Rubble Pit 631-6G was constructed in 1951 as an unlined earthen pit in surficial sediments for disposal and incineration of potentially hazardous substances, such as metals and organic solvents.

  8. Summary of the 1987 soil sampling effort at the Idaho National Engineering Laboratory Test Reactor Area Paint Shop Ditch

    SciTech Connect (OSTI)

    Wood, T.R.; Knight, J.L.; Hertzler, C.L.

    1989-08-01

    Sampling of the Test Reactor Area (TRA) Paint Shop Ditch at the Idaho National Engineering Laboratory was initiated in compliance with the Interim Agreement between the Department of Energy (DOE) and the Environmental Protection Agency (EPA). Sampling of the TRA Paint Shop Ditch was done as part of the Action Plan to achieve and maintain compliance with the Resource Conservation and Recovery Act (RCRA) and applicable regulations. It is the purpose of this document to provide a summary of the July 6, 1987 sampling activities that occurred in ditch west of Building TRA-662, which housed the TRA Paint Shop in 1987. This report will give a narrative description of the field activities, locations of collected samples, discuss the sampling procedures and the chemical analyses. Also included in the scope of this report is to bring together data and reports on the TRA Paint Shop Ditch for archival purposes. 6 refs., 10 figs., 8 tabs.

  9. Evaluation of the intermittent GTA cold wire feed weld system

    SciTech Connect (OSTI)

    Dereskiewicz, J.P.

    1991-08-01

    An intermittent gas tungsten arc cold wire feed process was statistically evaluated to determine the feasibility of applying this process to meet the 0.030-inch weld penetration and peak temperature requirements when unfavorable joint tolerances exist on a subassembly weld. The wire feed system was determined to only slightly benefit the welding process over normal pulsed gas tungsten arc welding using traditional wire feeding capabilities. However, the complexity of this process and extensive welding operator training and qualification does not outweigh the benefits of incorporating this synchronized pulse wire feed system in production. 2 refs., 43 figs., 11 tabs.

  10. Method and apparatus for welding precipitation hardenable materials

    DOE Patents [OSTI]

    Murray, H. Jr.; Harris, I.D.; Ratka, J.O.; Spiegelberg, W.D.

    1994-06-28

    A method for welding together members consisting of precipitation age hardened materials includes the steps of selecting a weld filler material that has substantially the same composition as the materials being joined, and an age hardening characteristic temperature age threshold below that of the aging kinetic temperature range of the materials being joined, whereby after welding the members together, the resulting weld and heat affected zone (HAZ) are heat treated at a temperature below that of the kinetic temperature range of the materials joined, for obtaining substantially the same mechanical characteristics for the weld and HAZ, as for the parent material of the members joined. 5 figures.

  11. Method and apparatus for welding precipitation hardenable materials

    DOE Patents [OSTI]

    Murray, Jr., Holt; Harris, Ian D.; Ratka, John O.; Spiegelberg, William D.

    1994-01-01

    A method for welding together members consisting of precipitation age hardened materials includes the steps of selecting a weld filler material that has substantially the same composition as the materials being joined, and an age hardening characteristic temperature age threshold below that of the aging kinetic temperature range of the materials being joined, whereby after welding the members together, the resulting weld and heat affected zone (HAZ) are heat treated at a temperature below that of the kinetic temperature range of the materials joined, for obtaining substantially the same mechanical characteristics for the weld and HAZ, as for the parent material of the members joined.

  12. Method for producing titanium aluminide weld rod

    DOE Patents [OSTI]

    Hansen, Jeffrey S.; Turner, Paul C.; Argetsinger, Edward R.

    1995-01-01

    A process for producing titanium aluminide weld rod comprising: attaching one end of a metal tube to a vacuum line; placing a means between said vacuum line and a junction of the metal tube to prevent powder from entering the vacuum line; inducing a vacuum within the tube; placing a mixture of titanium and aluminum powder in the tube and employing means to impact the powder in the tube to a filled tube; heating the tube in the vacuum at a temperature sufficient to initiate a high-temperature synthesis (SHS) reaction between the titanium and aluminum; and lowering the temperature to ambient temperature to obtain a intermetallic titanium aluminide alloy weld rod.

  13. ARM - Instrument - omi

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    related to ozone chemistry and climate. The OMI instrument is mounted on the EOS Aura platform and employs hyperspectral imaging in a push-broom mode to observe solar...

  14. ARM - Instrument - om

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    related to ozone chemistry and climate. The OMI instrument is mounted on the EOS Aura platform and employs hyperspectral imaging in a push-broom mode to observe solar...

  15. ARM - Campaign Instrument - cirpas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscirpas Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NPS CIRPAS Twin Otter Aircraft (CIRPAS)...

  16. ARM - Campaign Instrument - tdlas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstdlas Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Tunable Diode Laser Absorption...

  17. ARM - Campaign Instrument - soar

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssoar Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Shipboard Oceanographic and Atmospheric...

  18. ARM - Campaign Instrument - teom

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsteom Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Tapered Element Oscillating Microbalance...

  19. ARM - Campaign Instrument - smart

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssmart Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Surface-Sensing Measurements for...

  20. ARM - Campaign Instrument - hvps

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentshvps Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : High Volume Precipitation Spectrometer...

  1. ARM - Campaign Instrument - issrwp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsissrwp Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : 915RWP Derived Data with Sonde at...

  2. ARM - Campaign Instrument - pip

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspip Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Precipitation Imaging Probe (PIP)...

  3. ARM - Instrument - spn

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsspn Documentation Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Sunshine Pyranometer (SPN) The...

  4. ARM - Campaign Instrument - ronbrown

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsronbrown Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NOAA Research Vessel Ron Brown...

  5. ARM - Campaign Instrument - hsrl

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentshsrl Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : High Spectral Resolution Lidar (HSRL)...

  6. ARM - Campaign Instrument - precipret

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsprecipret Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Precipitation Retrievals (PRECIPRET)...

  7. ARM - Campaign Instrument - rsp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsrsp Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Research Scanning Polarimeter (RSP)...

  8. ARM - Campaign Instrument - aats

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaats Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Ames Airborne Tracking Sunphotometer...

  9. ARM - Campaign Instrument - solarirrads

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssolarirrads Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Solar and Infrared Radiometers...

  10. ARM - Campaign Instrument - mmwr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmmwr Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Millimeter Wave Radiometer (MMWR)...

  11. ARM - Campaign Instrument - csr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscsr Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Circular Scanning Radiometer (CSR)...

  12. ARM - Campaign Instrument - cavity

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscavity Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Absolute Cavity Radiometer (CAVITY)...

  13. ARM - Campaign Instrument - scocec

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsscocec Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Semi-Continuous Organic Carbon...

  14. ARM - Campaign Instrument - aod

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaod Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Aerosol Optical Depth, derived from...

  15. ARM - Campaign Instrument - fcdp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsfcdp Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Fast cloud droplet probe (FCDP)...

  16. ARM - Campaign Instrument - parsl

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsparsl Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : PNNL's Atmospheric Remote Sensing...

  17. ARM - Campaign Instrument - noaasurf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsnoaasurf Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NOAA Surface Meteorology Data,...

  18. ARM - Campaign Instrument - lase

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentslase Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : LASE-airborne Dial System (LASE)...

  19. ARM - Campaign Instrument - wpdngps

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentswpdngps Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Wind Profiler Demonstration Network...

  20. ARM - Campaign Instrument - visst

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsvisst Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Minnis Cloud Products Using Visst...

  1. ARM - Campaign Instrument - tem

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstem Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Transmission Electron Microscope (TEM)...

  2. ARM - Campaign Instrument - rad

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsrad Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Radiation Measurements at AMF (RAD)...

  3. ARM - Campaign Instrument - precipiso

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsprecipiso Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Stable Isotope from Precipitation...

  4. ARM - Campaign Instrument - sondeadjust

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssondeadjust Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Sonde Adjust (SONDEADJUST)...

  5. ARM - Campaign Instrument - mirai

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmirai Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : JAMSTEC Research Vessel Mirai (MIRAI)...

  6. ARM - Campaign Instrument - rss

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsrss Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Rotating Shadowband Spectroradiometer...

  7. ARM - Campaign Instrument - isar

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsisar Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Infrared seasurface skin temperature...

  8. ARM - Campaign Instrument - towerflux

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstowerflux Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Tower Flux Measurements (TOWERFLUX)...

  9. ARM - Campaign Instrument - fluxnet

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsfluxnet Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : FluxNet: Network of Regional CO2 and...

  10. ARM - Campaign Instrument - cvi

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscvi Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NCAR Counterflow Virtual Impactor (CVI)...

  11. ARM - Campaign Instrument - ecmwf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsecmwf Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : European Centre for Medium Range Weather...

  12. ARM - Campaign Instrument - nip

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsnip Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Normal Incident Pyrheliometer (NIP)...

  13. ARM - Campaign Instrument - clddigcam

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsclddigcam Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Cloud Digital Camera (CLDDIGCAM)...

  14. ARM - Campaign Instrument - glidersonde

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsglidersonde Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Glidersonde (Oklahoma University)...

  15. ARM - Campaign Instrument - ecor

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsecor Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Eddy Correlation Flux Measurement System...

  16. ARM - Campaign Instrument - npol

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsnpol Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NASA N-POL Polarimetric Radar System...

  17. ARM - Instrument - nwsup

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsnwsup Documentation Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : National Weather Service Upper Air...

  18. ARM - Instrument - nwssurf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsnwssurf Documentation Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : National Weather Service Surface...

  19. ARM - Campaign Instrument - sdms

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssdms Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : snow depth measurement system (SDMS)...

  20. ARM - Campaign Instrument - msr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmsr Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Multi-wavelength Scanning Radiometer (MSR)...

  1. ARM - Campaign Instrument - hop

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentshop Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Helicopter Observation Platform (HOP)...

  2. ARM - Campaign Instrument - csi

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscsi Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Cloud Spectrometer and Impactor (CSI)...

  3. ARM - Instrument - ceilpblht

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsceilpblht Documentation Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Error occurred. Instrument "ceilpblht" does...

  4. ARM - Campaign Instrument - rsr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsrsr Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Rotating Shading-arm Radiometer (RSR)...

  5. ARM - Campaign Instrument - goes

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsgoes Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Geostationary Operational Environmental...

  6. ARM - Campaign Instrument - iap

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsiap Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : In-situ Aerosol Profiles (Cessna Aerosol...

  7. ARM - Campaign Instrument - tcrsr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstcrsr Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Thin Cloud Rotating Shadowband...

  8. ARM - Campaign Instrument - palms

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspalms Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Particle Analysis by Laser Mass...

  9. ARM - Campaign Instrument - mplnor

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmplnor Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Normalized Backscatter Profiles from...

  10. ARM - Campaign Instrument - radfluxanal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsradfluxanal Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Radiative Flux Analysis...

  11. ARM - Campaign Instrument - sfcmetumiami

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssfcmetumiami Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : University of Miami Surface...

  12. ARM - Campaign Instrument - asd

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsasd Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Analytical Spectral Devices Field...

  13. ARM - Campaign Instrument - replicator

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsreplicator Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Balloon-borne Ice Crystal...

  14. ARM - Campaign Instrument - qmeaerilbl

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsqmeaerilbl Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Comparison of Statistics or Clouds...

  15. ARM - Instrument - gp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Global Positioning System (GP) <-- Picture of the Global Positioning System (GPS) --> General...

  16. ARM - Instrument - bsrn

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Baseline Solar Radiation Network (BSRN) Note: bsrn is currently inactive andor ...

  17. ARM - Instrument - smos

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    KS (ABLE) retired SGP A4 Browse Data Smileyberg, KS (ABLE) retired SGP A5 Browse Data Oxford, KS (ABLE) retired retired Originating instrument has been retired at this location...

  18. ARM - Instrument - fluxnet

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AsiaFlux, and OzFlux. Locations Tropical Western Pacific TWP X33 Browse Data Howard Springs FluxNet Site retired retired Originating instrument has been retired at this...

  19. ARM - Instrument - 50rwp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstruments50rwp Documentation 50RWP : Handbook ARM Data Discovery Browse Data Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send...

  20. ARM - Instrument - vceil

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsvceil Documentation VCEIL : Handbook Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Error occurred. Instrument...

  1. ARM - Instrument - rain

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Site TMP M1 Browse Data U. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AMF2 retired Originating instrument has been retired at this location Contact(s)...

  2. ARM - Instrument - vdis

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AMF2 retired TMP M1 Browse Data U. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AMF2 retired Originating instrument has been retired at this location Contact(s)...

  3. ARM - Instrument - nav

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    - NOAA Ship Ronald H. Brown; AMF2 MAG M1 Browse Data Los Angeles, CA to Honolulu, HI - container ship Horizon Spirit; AMF2 retired retired Originating instrument has been...

  4. ARM - Instrument - maps

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Mesoscale Analysis and Prediction System (MAPS) Note: maps is currently inactive andor...

  5. ARM - Instrument - rad

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the Sahel region against those taken at the more developed surface area around the airport. Because the remote location didn't have electrical power, instruments for the...

  6. ARM - Instrument - acars

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    These data are routed by several cooperating airlines to FSL, who decode and quality control the data. Data for this instrument are no longer being collected by ARM; however,...

  7. ARM - Instrument - twrcam

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Data Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Browse Plots Point Reyes, CA retired retired Originating instrument has been retired at this location...

  8. ARM - Instrument - nfov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Plots Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Browse Plots Point Reyes, CA retired retired Originating instrument has been retired at this location...

  9. ARM - Campaign Instrument - gpswv

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsgpswv Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Water Vapor from Global Positioning...

  10. ARM - Instrument - cfh

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscfh Documentation Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Error occurred. Instrument "cfh

  11. ARM - Instrument - marinemet

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmarinemet Documentation Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Error occurred. Instrument "marinemet" does not exist.

  12. ARM - Instrument - pgsiso

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspgsiso Documentation Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Error occurred. Instrument "pgsiso" does not exist.

  13. ARM - Instrument - radiocarbon

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsradiocarbon Documentation Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Error occurred. Instrument "radiocarbon" does not exist.

  14. ARM - Instrument - tbs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstbs Documentation Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Error occurred. Instrument "tbs" does not exist.

  15. Method for the concurrent ultrasonic inspection of partially completed welds

    DOE Patents [OSTI]

    Johnson, John A. (Idaho Falls, ID); Larsen, Eric D. (Idaho Falls, ID); Miller, Karen S. (Idaho Falls, ID); Smartt, Herschel B. (Idaho Falls, ID); McJunkin, Timothy R. (Idaho Falls, ID)

    2002-01-01

    A method for the concurrent ultrasonic inspection of partially completed welds is disclosed and which includes providing a pair of transducers which are individually positioned on the opposite sides of a partially completed weld to be inspected; moving the transducers along the length of and laterally inwardly and outwardly relative to the partially completed weld; pulsing the respective transducers to produce an ultrasonic signal which passes through or is reflected from the partially completed weld; receiving from the respective transducers ultrasonic signals which pass through or are reflected from the partially completed welds; and analyzing the ultrasonic signal which has passed through or is reflected from the partially completed weld to determine the presence of any weld defects.

  16. A residual stress study in similar and dissimilar welds

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Eisazadeh, Hamid; Goldak, John A.; Aidun, Daryush K.; Coules, Harry E.; Bunn, Jeffrey R; Achuthan, A.

    2016-04-01

    Residual strain distributions in similar and dissimilar welds were measured using neutron diffraction (ND) method. Then, using three strain components, three-dimensional stress states were calculated. The results were used to determine the effect of the martensitic phase transformation and material properties on residual stress (RS) distribution. It was observed that smaller longitudinal RS was induced in the low carbon steel side of dissimilar weld when compared to its similar weld. Also, it was found that the transverse RS near and within the weld zone (WZ) in dissimilar weld exhibited a distinctive trend, with tensile mode reaching the yield strength ofmore » the base metal (BM). In order to characterize the WZ in dissimilar weld, we deployed optical microscopy, hardness, and energy dispersive X-ray spectroscopy (EDAX). This study not only provides further insight into the RS state in similar and dissimilar welds; it also delivers important consequences of phase transformation in the latter case.« less

  17. Modeling of Heat and Mass Transfer in Fusion Welding

    SciTech Connect (OSTI)

    Zhang, Wei [ORNL

    2011-01-01

    In fusion welding, parts are joined together by melting and subsequent solidification. Although this principle is simple, complex transport phenomena take place during fusion welding, and they determine the final weld quality and performance. The heat and mass transfer in the weld pool directly affect the size and shape of the pool, the solidification microstructure, the formation of weld defects such as porosity and humping, and the temperature distribution in the fusion zone and heat-affected zone (HAZ). Furthermore, the temperature evolution affects the kinetics and extent of various solid-state phase transformations, which in turn determine the final weld microstructure and mechanical properties. The formation of residual stresses and distortion originates from the thermal expansion and contraction during welding heating and cooling, respectively.

  18. Friction Stir Spot Welding of DP780 Carbon Steel

    SciTech Connect (OSTI)

    Santella, M. L.; Hovanski, Yuri; Frederick, Alan; Grant, Glenn J.; Dahl, Michael E.

    2009-09-15

    Friction stir spot welds were made in uncoated and galvannneled DP780 sheets using polycrystalline boron nitride stir tools. The tools were plunged at either a single continuous rate or in two segments consisting of a relatively high rate followed by a slower rate of shorter depth. Welding times ranged from 1-10 s. Increasing tool rotation speed from 800 to 1600 rpm increased strength values. The 2-segment welding procedures also produced higher strength joints. Average lap-shear strengths exceeding 10.3 kN were consistently obtained in 4 s on both the uncoated and the galvannealed DP780. The likelihood of diffusion and mechanical interlocking contributing to bond formation was supported by metallographic examinations. A cost analysis based on spot welding in automobile assembly showed that for friction stir spot welding to be economically competitive with resistance spot welding the cost of stir tools must approach that of resistance spot welding electrode tips.

  19. Intermetallic alloy welding wires and method for fabricating the same

    DOE Patents [OSTI]

    Santella, Michael L.; Sikka, Vinod K.

    1996-01-01

    Welding wires for welding together intermetallic alloys of nickel aluminides, nickel-iron aluminides, iron aluminides, or titanium aluminides, and preferably including additional alloying constituents are fabricated as two-component, clad structures in which one component contains the primary alloying constituent(s) except for aluminum and the other component contains the aluminum constituent. This two-component approach for fabricating the welding wire overcomes the difficulties associated with mechanically forming welding wires from intermetallic alloys which possess high strength and limited ductilities at elevated temperatures normally employed in conventional metal working processes. The composition of the clad welding wires is readily tailored so that the welding wire composition when melted will form an alloy defined by the weld deposit which substantially corresponds to the composition of the intermetallic alloy being joined.

  20. Intermetallic alloy welding wires and method for fabricating the same

    DOE Patents [OSTI]

    Santella, M.L.; Sikka, V.K.

    1996-06-11

    Welding wires for welding together intermetallic alloys of nickel aluminides, nickel-iron aluminides, iron aluminides, or titanium aluminides, and preferably including additional alloying constituents are fabricated as two-component, clad structures in which one component contains the primary alloying constituent(s) except for aluminum and the other component contains the aluminum constituent. This two-component approach for fabricating the welding wire overcomes the difficulties associated with mechanically forming welding wires from intermetallic alloys which possess high strength and limited ductilities at elevated temperatures normally employed in conventional metal working processes. The composition of the clad welding wires is readily tailored so that the welding wire composition when melted will form an alloy defined by the weld deposit which substantially corresponds to the composition of the intermetallic alloy being joined. 4 figs.

  1. Sensors, Instrumentation Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sensors, Instrumentation Systems /science-innovation/_assets/images/icon-science.jpg Sensors, Instrumentation Systems National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Sensors Los Alamos National Laboratory's Kevin Farinholt holds a prototype rectifying antenna array used in experiments designed to monitor the structural health of

  2. ARM - Campaign Instrument - acsm

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsacsm Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Aerosol Chemical Speciation Monitor (ACSM) Instrument Categories Aerosols Campaigns Aerosol Life Cycle IOP at BNL [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2011.06.01 - 2011.08.31 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for

  3. ARM - Campaign Instrument - aeri

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaeri Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Atmospheric Emitted Radiance Interferometer (AERI) Instrument Categories Atmospheric Profiling, Radiometric Campaigns ARRA AERI Comparison [ Download Data ] Southern Great Plains, 2011.01.07 - 2011.01.23 Application of the ARM Mobile Facility (AMF) to Study the Aerosol Indirect Effects in China [ Download Data ] Shouxian, Anhui, China; Mobile Facility,

  4. ARM - Campaign Instrument - aerosmassspec

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaerosmassspec Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Aerosol Mass Spectrometer (AEROSMASSSPEC) Instrument Categories Aerosols, Airborne Observations, Atmospheric Carbon Campaigns 2006 MAX-Mex-Megacity Aerosol eXperiment - Mexico City [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2006.03.03 - 2006.03.28 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off

  5. ARM - Campaign Instrument - aeth

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaeth Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Aethalometer (AETH) Instrument Categories Aerosols Campaigns Azores: Above-Cloud Radiation Budget near Graciosa Island [ Download Data ] Gan Island, Maldives; Mobile Facility, 2010.04.15 - 2010.09.15 Carbonaceous Aerosol and Radiation Effects Study (CARES) - Surface Meteorological Sounding [ Download Data ] Off Site Campaign : various, including non-ARM

  6. ARM - Campaign Instrument - aos

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaos Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Aerosol Observing System (AOS) Instrument Categories Aerosols Campaigns 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2007.06.04 - 2007.06.25 ARM Cloud Aerosol Precipitation Experiment (ACAPEX) [ Download Data ] ACAPEX (ARM Cloud Aerosol Precip Experiment); Mobile Facility, 2015.01.14

  7. ARM - Campaign Instrument - aosmet

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaosmet Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Meteorological Measurements associated with the Aerosol Observing System (AOSMET) Instrument Categories Surface Meteorology Campaigns ARM Cloud Aerosol Precipitation Experiment (ACAPEX) [ Download Data ] ACAPEX (ARM Cloud Aerosol Precip Experiment); Mobile Facility, 2015.01.14 - 2015.02.12 Biogenic Aerosols - Effects on Clouds and Climate [ Download Data ]

  8. ARM - Campaign Instrument - ccn

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsccn Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Cloud Condensation Nuclei Particle Counter (CCN) Instrument Categories Aerosols, Airborne Observations Campaigns 2005 MASE-MArine Stratus Experiment-Pt. Reyes, CA [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2005.07.05 - 2005.07.27 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various,

  9. ARM - Campaign Instrument - cep

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscep Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Cloud Extinction Probe (CEP) Instrument Categories Airborne Observations, Cloud Properties Campaigns Indirect and Semi-Direct Aerosol Campaign (ISDAC) [ Download Data ] North Slope Alaska, 2008.04.01 - 2008.04.30 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for

  10. ARM - Campaign Instrument - disdrometer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsdisdrometer Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Impact Disdrometer (DISDROMETER) Instrument Categories Surface Meteorology Campaigns AMIE-Gan Ancillary Disdrometer [ Download Data ] Gan Island, Maldives; Mobile Facility, 2012.01.01 - 2012.02.10 CRYSTAL-FACE [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2002.06.26 - 2002.08.01 Midlatitude Continental Convective Clouds

  11. ARM - Campaign Instrument - dma

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsdma Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Differential Mobility Analyzer (DMA) Instrument Categories Aerosols, Airborne Observations Campaigns 2004 NEAX (Northeast Aerosol Experiment), G-1 data [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2004.07.20 - 2004.08.15 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various, including

  12. ARM - Campaign Instrument - fssp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsfssp Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Forward-Scatter Spectrometer Probe (FSSP) Instrument Categories Aerosols, Airborne Observations, Cloud Properties Campaigns 1995 Southern Oxidants Study (SOS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1995.06.24 - 1995.07.20 1996 NARSTO Northeast Field Study (NARSTO-NE) [ Download Data ] Off Site Campaign : various, including

  13. ARM - Campaign Instrument - mfrsr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmfrsr Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Multifilter Rotating Shadowband Radiometer (MFRSR) Instrument Categories Aerosols, Derived Quantities and Models, Radiometric Campaigns Aerosol Lidar Validation Experiment - ALIVE [ Download Data ] Southern Great Plains, 2005.09.12 - 2005.09.22 Application of the ARM Mobile Facility (AMF) to Study the Aerosol Indirect Effects in China [ Download Data ]

  14. ARM - Campaign Instrument - mwr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmwr Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Microwave Radiometer (MWR) Instrument Categories Atmospheric Profiling, Cloud Properties, Radiometric Campaigns ARESE II IOP [ Download Data ] Southern Great Plains, 2000.02.01 - 2000.04.05 Application of the ARM Mobile Facility (AMF) to Study the Aerosol Indirect Effects in China [ Download Data ] Shouxian, Anhui, China; Mobile Facility, 2008.05.15 -

  15. ARM - Campaign Instrument - pass

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspass Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Photoacoustic Soot Spectrometer (PASS) Instrument Categories Aerosols Campaigns Aerosol Life Cycle IOP at BNL [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2011.06.01 - 2011.08.31 Carbonaceous Aerosol and Radiation Effects Study (CARES) Photo-Acoustic Aerosol Light Absorption and Scattering [ Download Data ] Off Site Campaign :

  16. ARM - Campaign Instrument - pcasp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspcasp Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Passive Cavity Aerosol Spectrometer (PCASP) Instrument Categories Aerosols, Airborne Observations Campaigns 1995 Southern Oxidants Study (SOS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1995.06.24 - 1995.07.20 1996 NARSTO Northeast Field Study (NARSTO-NE) [ Download Data ] Off Site Campaign : various, including non-ARM sites,

  17. ARM - Campaign Instrument - rwp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsrwp Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Radar Wind Profiler (RWP) Instrument Categories Atmospheric Profiling Campaigns Aerosol Life Cycle IOP at BNL [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2011.06.01 - 2011.08.31 Carbonaceous Aerosol and Radiation Effects Study (CARES) - Surface Meteorological Sounding [ Download Data ] Off Site Campaign : various, including non-ARM

  18. ARM - Campaign Instrument - semsamp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssemsamp Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Scanning Electron Microscope Sampler (SEMSAMP) Instrument Categories Aerosols Campaigns Carbonaceous Aerosol and Radiation Effects Study (CARES) - Surface Meteorological Sounding [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2010.05.26 - 2010.07.07 Carbonaceous Aerosol and Radiation Effects Study (CARES) - Surface Meteorological

  19. ARM - Campaign Instrument - sodar

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssodar Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Mini Sound Detection and Ranging (SODAR) Instrument Categories Atmospheric Profiling, Surface Meteorology Campaigns Boundary Layer Cloud IOP [ Download Data ] North Slope Alaska, 2005.07.11 - 2005.08.07 Carbonaceous Aerosol and Radiation Effects Study (CARES) - Surface Meteorological Sounding [ Download Data ] Off Site Campaign : various, including non-ARM

  20. ARM - Campaign Instrument - tracegas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstracegas Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Trace gas concentrations (TRACEGAS) Instrument Categories Aerosols, Airborne Observations, Atmospheric Profiling, Atmospheric Carbon Campaigns 2008 VAMOS Ocean-Cloud-Atmos-Land Study (VOCALS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2008.10.14 - 2008.11.13 Observations and Modeling of the Green Ocean Amazon (GOAMAZON) [

  1. ARM - Campaign Instrument - varanal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsvaranal Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Constrained Variational Analysis (VARANAL) Instrument Categories Derived Quantities and Models Campaigns ARM MJO Investigation Experiment on Gan Island [ Download Data ] Gan Island, Maldives; Mobile Facility, 2011.10.01 - 2012.03.31 Cloud LAnd Surface Interaction Campaign (CLASIC) [ Download Data ] Southern Great Plains, 2007.06.01 - 2007.06.30 Fall 1997

  2. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    FacilitiesInstruments AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 MAOS Data Operations AMF Fact Sheet Images Contacts AMF Deployments McMurdo Station, Antarctica, 2015-2016 Pearl Harbor, Hawaii, to San Francisco, California, 2015 Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs,

  3. ARM - Site Instruments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    FacilitiesInstruments AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 MAOS Data Operations AMF Fact Sheet Images Contacts AMF Deployments McMurdo Station, Antarctica, 2015-2016 Pearl Harbor, Hawaii, to San Francisco, California, 2015 Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs,

  4. ARM - Instrument - eta

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentseta Documentation ETA : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Eta Model Runs (ETA) Instrument Categories Derived Quantities and Models General Overview NOAA's National Centers for Environmental Prediction run a regional numerical weather analysis and forecast system that covers the entire North American Continent. The data archived by ARM since 1993-06-16 come

  5. ARM - Instrument - gndmfr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsgndmfr Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Ground Multifilter Radiometer (GNDMFR) Note: gndmfr is currently inactive and/or retired. Active Dates 1970.01.01 - 1970.01.01 Instrument Categories Radiometric, Surface/Subsurface Properties General Overview The Ground Radiation (GNDRAD) collection of radiometers provides each site with continuous measurements of

  6. ARM - Instrument - issrwp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsissrwp Documentation ISSRWP : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : 915RWP Derived Data with Sonde at Altitude (ISSRWP) Instrument Categories Derived Quantities and Models Output Datastreams 915issrwpwindcon : Derived: wind data from the 915RWP (consensus) and sonde, at altitude Primary Measurements The following measurements are those considered scientifically

  7. ARM - Instrument - isssonde

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsisssonde Documentation ISSSONDE : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Integrated Sounding System (ISSSONDE) Instrument Categories Derived Quantities and Models Output Datastreams isssonde : Integrated Sounding System (ISS): meteorological data vertical profile isssonde10s : Integrated Sounding System (ISS): meteorological data vertical profile, 10-s resolution

  8. ARM - Instrument - maws

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmaws Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Automatic Weather Station (MAWS) Instrument Categories Surface Meteorology Primary Measurements The following measurements are those considered scientifically relevant. Atmospheric moisture Atmospheric pressure Atmospheric temperature Horizontal wind Locations Southern Great Plains SGP C1 Browse Data Browse Plots Central

  9. ARM - Instrument - nwsupa

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsnwsupa Documentation NWSUPA : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : National Weather Service Upper Air Measurements (NWSUPA) Instrument Categories Atmospheric Profiling General Overview These data are NWS soundings covering all three ARM sites. Some of these data are high temporal resolution (6 seconds) others are only for mandatory and significant levels. Most

  10. ARM - Instrument - pils

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspils Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Particle Into Liquid Sampler (PILS) Instrument Categories Aerosols As the name implies, aerosols are collected in liquid sample vials, which can then be passed through an offline ion chromatograph to determine chemical composition of the water soluble component of the aerosol particles. The PILS is part of the Aerosol

  11. ARM - Instrument - stamp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsstamp Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Soil Temperature and Moisture Profiles (STAMP) Instrument Categories Surface/Subsurface Properties Primary Measurements The following measurements are those considered scientifically relevant. Precipitation Soil moisture Soil surface temperature Locations Southern Great Plains SGP E9 Browse Data Ashton, KS (Extended) SGP

  12. ARM - Instrument - surfspecalb

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssurfspecalb Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Surface Spectral Albedo (SURFSPECALB) Instrument Categories Surface/Subsurface Properties Primary Measurements The following measurements are those considered scientifically relevant. Surface albedo Surface condition Locations North Slope Alaska NSA C1 Browse Data Central Facility, Barrow AK retired Southern Great

  13. ARM - Instrument - tdmadap

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstdmadap Documentation TDMADAP : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Aerosol Properties derived from TDMA Measurements (TDMADAP) Instrument Categories Aerosols Primary Measurements The following measurements are those considered scientifically relevant. Cloud condensation nuclei Locations Southern Great Plains SGP X1 Browse Data External Data (satellites and

  14. Causal Factors of Weld Porosity in Gas Tungsten Arc Welding of Powder Metallurgy Produced Titanium Alloys

    SciTech Connect (OSTI)

    Muth, Thomas R; Yamamoto, Yukinori; Frederick, David Alan; Contescu, Cristian I; Chen, Wei; Lim, Yong Chae; Peter, William H; Feng, Zhili

    2013-01-01

    ORNL undertook an investigation using gas tungsten arc (GTA) welding on consolidated powder metallurgy (PM) titanium (Ti) plate, to identify the causal factors behind observed porosity in fusion welding. Tramp element compounds of sodium and magnesium, residual from the metallothermic reduction of titanium chloride used to produce the titanium, were remnant in the starting powder and were identified as gas forming species. PM-titanium made from revert scrap where sodium and magnesium were absent, showed fusion weld porosity, although to a lesser degree. We show that porosity was attributable to hydrogen from adsorbed water on the surface of the powders prior to consolidation. The removal / minimization of both adsorbed water on the surface of titanium powder and the residues from the reduction process prior to consolidation of titanium powders, are critical to achieve equivalent fusion welding success similar to that seen in wrought titanium produced via the Kroll process.

  15. Shielding gas selection for increased weld penetration and productivity in GTA welding

    SciTech Connect (OSTI)

    Leinonen, J.I.

    1996-12-31

    The effects of hydrogen and helium additions to the argon shielding gas on GTA weld pool profiles in the case of two austenitic stainless steel sheets 3 mm thick are investigated here in detail. One of the test steels shows good weldability, with a relatively deep, narrow weld pool profile, but the other is poorly weldable, with a shallow, wide weld pool when argon shielding gas is used. Bead-on-plate test welds were produced with arc shields of argon, argon with hydrogen additions of 2 to 18.2% and argon with helium additions of 20 to 80%. The hydrogen additions increases the depth of weld penetration in both test steels, but productivity with respect to maximum welding speed can be improved to an accepted level only with steel sheets of good weldability in terms of a relatively high depth/width (D/W) ratio. The depth of penetration in the test steel of good weldability increased somewhat with helium additions and the D/W ratio remained unchanged, while these parameters increased markedly in the poorly weldable steel when a He-20% Ar shielding gas was used and resembled those of the more weldable steel.

  16. HEAT INPUT AND POST WELD HEAT TREATMENT EFFECTS ON REDUCED-ACTIVATION FERRITIC/MARTENSITIC STEEL FRICTION STIR WELDS

    SciTech Connect (OSTI)

    Tang, Wei; Chen, Gaoqiang; Chen, Jian; Yu, Xinghua; Frederick, David Alan; Feng, Zhili

    2015-01-01

    Reduced-activation ferritic/martensitic (RAFM) steels are an important class of structural materials for fusion reactor internals developed in recent years because of their improved irradiation resistance. However, they can suffer from welding induced property degradations. In this paper, a solid phase joining technology friction stir welding (FSW) was adopted to join a RAFM steel Eurofer 97 and different FSW parameters/heat input were chosen to produce welds. FSW response parameters, joint microstructures and microhardness were investigated to reveal relationships among welding heat input, weld structure characterization and mechanical properties. In general, FSW heat input results in high hardness inside the stir zone mostly due to a martensitic transformation. It is possible to produce friction stir welds similar to but not with exactly the same base metal hardness when using low power input because of other hardening mechanisms. Further, post weld heat treatment (PWHT) is a very effective way to reduce FSW stir zone hardness values.

  17. CRAD, Welding, Cutting and Brazing Assessment Plan

    Broader source: Energy.gov [DOE]

    This assessment is to verify hot work requirements associated with welding, cutting, burning, brazing, grinding and other spark- or flame-producing operations have been implemented. Verify that the requirements implemented are appropriate for preventing loss of life and property from fire, and personal injury from contact with or exposure to molten metals, vapors, radiant energy, injurious rays and sparks.

  18. Defect distributions in weld-deposited cladding

    SciTech Connect (OSTI)

    Li, Y.Y.; Mabe, W.R.

    1998-11-01

    Defect distributions in stainless steel and nickel-chromium alloy weld-deposited cladding over a low alloy steel base were characterized by destructive evaluation (DE). An evaluation of the observed defects was conducted to characterize the defects by type or classification. Size distributions of cladding defect types were developed from the information obtained. This paper presents the results of the cladding evaluation.

  19. Capacitor discharge process for welding braided cable

    DOE Patents [OSTI]

    Wilson, Rick D.

    1995-01-01

    A capacitor discharge process for welding a braided cable formed from a plurality of individual cable strands to a solid metallic electrically conductive member comprises the steps of: (a) preparing the electrically conductive member for welding by bevelling one of its end portions while leaving an ignition projection extending outwardly from the apex of the bevel; (b) clamping the electrically conductive member in a cathode fixture; (c) connecting the electrically conductive member clamped in the cathode fixture to a capacitor bank capable of being charged to a preselected voltage value; (d) preparing the braided cable for welding by wrapping one of its end portions with a metallic sheet to form a retaining ring operable to maintain the individual strands of the braided cable in fixed position within the retaining ring; (e) clamping the braided cable and the retaining ring as a unit in an anode fixture so that the wrapped end portion of the braided cable faces the ignition projection of the electrically conductive member; and (f) moving the cathode fixture towards the anode fixture until the ignition projection of the electrically conductive member contacts the end portion of the braided cable thereby allowing the capacitor bank to discharge through the electrically conductive member and through the braided cable and causing the electrically conductive member to be welded to the braided cable via capacitor discharge action.

  20. Space Instrument Realization (ISR-5)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    5 Space Instrument Realization Providing expertise to support the design and fabrication of space-based custom instrumentation Contacts Group Leader Amy Regan Email Staff ...

  1. instrumentation | OpenEI Community

    Open Energy Info (EERE)

    relevant to instrumentation and sensors. Sharing information on MHK instrumentation and lessons learned from laboratory testing and field deployments will help the MHK community...

  2. instruments | OpenEI Community

    Open Energy Info (EERE)

    relevant to instrumentation and sensors. Sharing information on MHK instrumentation and lessons learned from laboratory testing and field deployments will help the MHK community...

  3. Resistance Weld Qualification Analysis for Radioactive Waste Canisters

    SciTech Connect (OSTI)

    Gupta, N.K.; Gong, C.

    1995-01-10

    High level radioactive waste canisters are sealed by resistance upset welding to ensure leak tight closures. Resistance welding is fast, uniform, and can be performed remotely to minimize radiation exposure to the operators. Canisters are constructed in accordance with ASME Band PV Code, Section VIII, Division 1, however, the resistance welds are not used in Section VIII. The resistance welds are qualified by analysis using material properties obtained from the test coupons. Burst tests are performed on canister welds to meet ASME Section IX welder qualification requirements. Since burst tests are not used in Section IX for resistance weld qualification, finite element results of canister resistance welds are compared with the finite element analysis results of resistance weld tests in ASME Section IX, QW-196 to establish similarity between the two weld tests. Detailed analyses show that the primary mode of failure in both the tests is shear and, therefore, the use of burst test in place of shear test is acceptable. It is believed that the detailed analyses and results could help in establishing acceptance criteria for resistance upset welding in ASME B&PV Code, Sections VIII, and IX.

  4. Thermocapillary and arc phenomena in stainless steel welding

    SciTech Connect (OSTI)

    Pierce, S.W.; Olson, D.L.; Burgardt, P.

    1999-02-01

    This investigation characterized the effects of power level and Gaussian heat source size on thermocapillary-induced weld shape and estimated the relative influence of various possible arc phenomena in determining weld shape. Welds made with the CTAW process were compared with similar ones made with a conduction-mode EBW process and the differences were related to arc effects. Evidence of thermocapillary flow was readily apparent in both the GTA welds and the conduction-mode EB welds and was qualitatively similar in both. The similarity between the results obtained with the two processes serves to demonstrate that thermocapillary convection is the dominant factor in heat-to-heat weld shape variability. However, a similar one-to-one correspondence between welds produced with the two processes does not exist. Especially at high power, the EB welds showed stronger thermocapillary convection than the GTA welds. One important arc factor that limits thermocapillary flow in ar welds appears to be an increase in arc size with arc length and arc current. A non-Gaussian arc power distribution in GTAW seems to be most important in limiting the fluid flow. Apparently, the arc power distribution is more nearly rectangular in shape for an argon gas arc. At higher currents, above 200 A, plasma shear force may also be an important contributor to weld shape development. The conduction-mode EB welds demonstrate that thermocapillary flow reversal probably does not occur in welds made with a simple Gaussian heat source. The complex shape behavior is likely a result of an arc effect such as plasma shear.

  5. ARM - Campaign Instrument - aircraftcabin

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsaircraftcabin Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Aircraft Cabin Parameters (e.g. attitude, motion, ambient state) (AIRCRAFTCABIN) Instrument Categories Airborne Observations Campaigns 1996 NARSTO Northeast Field Study (NARSTO-NE) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1996.07.01 - 1996.07.28 2008 VAMOS Ocean-Cloud-Atmos-Land Study (VOCALS) [ Download Data ] Off Site

  6. ARM - Campaign Instrument - cas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscas Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Cloud and Aerosol Spectrometer (CAS) Instrument Categories Aerosols, Airborne Observations, Cloud Properties Campaigns 2005 MASE-MArine Stratus Experiment-Pt. Reyes, CA [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2005.07.05 - 2005.07.27 2006 MAX-Mex-Megacity Aerosol eXperiment - Mexico City [ Download Data ] Off Site Campaign :

  7. ARM - Campaign Instrument - cfdc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscfdc Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Continuous Flow Ice Thermal Diffusion Chamber (CFDC) Instrument Categories Aerosols, Airborne Observations, Cloud Properties Campaigns Indirect and Semi-Direct Aerosol Campaign (ISDAC) [ Download Data ] North Slope Alaska, 2008.04.01 - 2008.04.30 Mixed-Phase Arctic Cloud Experiment [ Download Data ] North Slope Alaska, 2004.09.27 - 2004.10.21 Primary

  8. ARM - Campaign Instrument - cldaerosmicro

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscldaerosmicro Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Cloud and Aerosol Microphysical Properties (CLDAEROSMICRO) Instrument Categories Aerosols, Airborne Observations, Cloud Properties Campaigns 2005 MASE-MArine Stratus Experiment-Pt. Reyes, CA [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2005.07.05 - 2005.07.27 2006 MAX-Mex-Megacity Aerosol eXperiment - Mexico City [ Download

  9. ARM - Campaign Instrument - cpc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentscpc Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Condensation Particle Counter (CPC) Instrument Categories Aerosols Campaigns 1998 Phoenix Air Quality Study [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1998.05.17 - 1998.06.09 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2007.06.04 - 2007.06.25 2007

  10. ARM - Campaign Instrument - flask

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsflask Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Flask Samplers for Carbon Cycle Gases and Isotopes (FLASK) Instrument Categories Airborne Observations, Atmospheric Carbon Campaigns ARM Airborne Carbon Measurements (ARM-ACME) [ Download Data ] Southern Great Plains, 2008.10.01 - 2011.12.31 ARM LBNL Carbon Project [ Download Data ] Southern Great Plains, 2002.04.02 - 2006.06.30 Aircraft Carbon [ Download

  11. ARM - Campaign Instrument - gasmonitor

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsgasmonitor Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Gas Monitors (GASMONITOR) Instrument Categories Aerosols, Other Campaigns 1995 Southern Oxidants Study (SOS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1995.06.24 - 1995.07.20 1996 NARSTO Northeast Field Study (NARSTO-NE) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1996.07.01 - 1996.07.28 1998

  12. ARM - Campaign Instrument - gcms

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsgcms Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Gas Chromatography Mass Spectrometry (GCMS) Instrument Categories Aerosols Campaigns 1995 Southern Oxidants Study (SOS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1995.06.24 - 1995.07.20 1998 Phoenix Air Quality Study [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1998.05.17 - 1998.06.09 1999 Northeast

  13. ARM - Campaign Instrument - irsi

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsirsi Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Infra-Red Sky Imager (IRSI) Instrument Categories Cloud Properties, Radiometric Campaigns Cloudiness Inter-Comparison IOP [ Download Data ] Southern Great Plains, 2003.02.21 - 2003.04.21 IRSI Inter-Comparison Study [ Download Data ] Southern Great Plains, 2007.08.27 - 2007.09.23 IRSI Inter-Comparison Study [ Download Data ] Southern Great Plains, 2007.08.27 -

  14. ARM - Campaign Instrument - mpl

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsmpl Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Micropulse Lidar (MPL) Instrument Categories Cloud Properties Campaigns Aerosol Lidar Validation Experiment - ALIVE [ Download Data ] Southern Great Plains, 2005.09.12 - 2005.09.22 Application of the ARM Mobile Facility (AMF) to Study the Aerosol Indirect Effects in China [ Download Data ] Shouxian, Anhui, China; Mobile Facility, 2008.05.15 - 2008.12.29 Cirrus

  15. ARM - Campaign Instrument - nephelometer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsnephelometer Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Nephelometer (NEPHELOMETER) Instrument Categories Aerosols Campaigns 1999 Northeast Corridor Ozone & Particulate Study [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1999.07.23 - 1999.08.11 2002 NEAQS (New England Air Qual. Study), G-1 data [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2002.07.09

  16. ARM - Campaign Instrument - partimg

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspartimg Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Particle imager (PARTIMG) Instrument Categories Airborne Observations, Cloud Properties Campaigns Indirect and Semi-Direct Aerosol Campaign (ISDAC) [ Download Data ] North Slope Alaska, 2008.04.01 - 2008.04.30 Indirect and Semi-Direct Aerosol Campaign (ISDAC) [ Download Data ] North Slope Alaska, 2008.04.01 - 2008.04.30 Indirect and Semi-Direct Aerosol

  17. ARM - Campaign Instrument - pils

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspils Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Particle Into Liquid Sampler (PILS) Instrument Categories Aerosols Campaigns 2000 Houston, Texas Air Quality Study [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2000.08.19 - 2000.09.12 2001 Philadelphia NE-OPS Air Quality Experiment [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2001.07.14 - 2001.07.30 2006

  18. ARM - Campaign Instrument - psap

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentspsap Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Particle Soot Absorption Photometer (PSAP) Instrument Categories Aerosols Campaigns 1998 Phoenix Air Quality Study [ Download Data ] Off Site Campaign : various, including non-ARM sites, 1998.05.17 - 1998.06.09 2000 Houston, Texas Air Quality Study [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2000.08.19 - 2000.09.12 2001 Phoenix

  19. ARM - Campaign Instrument - smps

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssmps Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Scanning mobility particle sizer (SMPS) Instrument Categories Aerosols Campaigns Aerosol Life Cycle IOP at BNL [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2011.06.01 - 2011.08.31 Aerosol Life Cycle: UV-APS and Nano-SMPS [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2011.06.10 - 2011.06.25 Carbonaceous

  20. ARM - Campaign Instrument - soil

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssoil Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Soil Measurement from the SGP (SOIL) Instrument Categories Surface/Subsurface Properties Campaigns COSMOS Network [ Download Data ] Southern Great Plains, 2010.08.05 - 2017.03.01 Cloud LAnd Surface Interaction Campaign (CLASIC) [ Download Data ] Southern Great Plains, 2007.06.01 - 2007.06.30 Cloud LAnd Surface Interaction Campaign (CLASIC) [ Download Data ]

  1. ARM - Campaign Instrument - tdma

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstdma Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Tandem Differential Mobility Analyzer (TDMA) Instrument Categories Aerosols Campaigns 2005 MASE-MArine Stratus Experiment-Pt. Reyes, CA [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2005.07.05 - 2005.07.27 2006 MAX-Mex-Megacity Aerosol eXperiment - Mexico City [ Download Data ] Off Site Campaign : various, including non-ARM sites,

  2. ARM - Campaign Instrument - trac

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstrac Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Time Resolved Aerosol Collector (TRAC) Instrument Categories Aerosols Campaigns 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2007.06.04 - 2007.06.25 2007 Cumulus Humilis Aerosol Process Study (CHAPS) [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2007.06.04

  3. ARM - Instrument - ecmwf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsecmwf Documentation ECMWF : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : European Centre for Medium Range Weather Forecasts Model Data (ECMWF) Note: ecmwf is currently inactive and/or retired. Active Dates 1996.10.01 - 2015.09.30 Instrument Categories Derived Quantities and Models General Overview These data can only be distributed to ARM scientists. ARM scientists who

  4. ARM - Instrument - gms

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsgms Documentation GMS : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Geostationary Meteorological Satellite (GMS) Note: gms is currently inactive and/or retired. Active Dates 1996.10.01 - 2003.02.16 Instrument Categories Satellite Observations <!-- Picture of the GMS --> General Overview GMS-5 satellite images are taken over the Tropical Western Pacific (TWP),

  5. ARM - Instrument - grams

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentsgrams Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Ground Radiometer Autonomous Measurement System (GRAMS) Note: grams is currently inactive and/or retired. Active Dates 1997.10.15 - 2000.10.03 Instrument Categories Radiometric Picture of the Ground-based Radiometer Autonomous Measurement System (GRAMS) Locations Southern Great Plains SGP C1 Browse Data Central Facility,

  6. ARM - Instrument - sp2

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssp2 Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Single Particle Soot Photometer (SP2) Instrument Categories Aerosols The SP2 measures the soot (black carbon) mass of individual aerosol particles by laser-induced incandescence down to concentrations as low as 10 ng/m^3. The SP2 is part of the Aerosol Observing System (AOS). See Also Contact(s) Stephen Springston Brookhaven

  7. ARM - Instrument - tlcv

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentstlcv Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Time-Lapsed Cloud Video (TLCV) Note: tlcv is currently inactive and/or retired. Active Dates 1997.09.15 - 2001.09.14 Instrument Categories Cloud Properties General Overview The time-lapsed cloud video (TLCV) camera provides a record of sky conditions by recording color images of an approximately 100-degree field of view,

  8. AC Resistance measuring instrument

    DOE Patents [OSTI]

    Hof, Peter J.

    1983-01-01

    An auto-ranging AC resistance measuring instrument for remote measurement of the resistance of an electrical device or circuit connected to the instrument includes a signal generator which generates an AC excitation signal for application to a load, including the device and the transmission line, a monitoring circuit which provides a digitally encoded signal representing the voltage across the load, and a microprocessor which operates under program control to provide an auto-ranging function by which range resistance is connected in circuit with the load to limit the load voltage to an acceptable range for the instrument, and an auto-compensating function by which compensating capacitance is connected in shunt with the range resistance to compensate for the effects of line capacitance. After the auto-ranging and auto-compensation functions are complete, the microprocessor calculates the resistance of the load from the selected range resistance, the excitation signal, and the load voltage signal, and displays of the measured resistance on a digital display of the instrument.

  9. AC resistance measuring instrument

    DOE Patents [OSTI]

    Hof, P.J.

    1983-10-04

    An auto-ranging AC resistance measuring instrument for remote measurement of the resistance of an electrical device or circuit connected to the instrument includes a signal generator which generates an AC excitation signal for application to a load, including the device and the transmission line, a monitoring circuit which provides a digitally encoded signal representing the voltage across the load, and a microprocessor which operates under program control to provide an auto-ranging function by which range resistance is connected in circuit with the load to limit the load voltage to an acceptable range for the instrument, and an auto-compensating function by which compensating capacitance is connected in shunt with the range resistance to compensate for the effects of line capacitance. After the auto-ranging and auto-compensation functions are complete, the microprocessor calculates the resistance of the load from the selected range resistance, the excitation signal, and the load voltage signal, and displays of the measured resistance on a digital display of the instrument. 8 figs.

  10. Instrument for assaying radiation

    DOE Patents [OSTI]

    Coleman, Jody Rustyn; Farfan, Eduardo B.

    2016-03-22

    An instrument for assaying radiation includes a flat panel detector having a first side opposed to a second side. A collimated aperture covers at least a portion of the first side of the flat panel detector. At least one of a display screen or a radiation shield may cover at least a portion of the second side of the flat panel detector.

  11. ARM - Instrument - smps-2

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govInstrumentssmps-2 Documentation Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Scanning Mobile Particle Sizer (SMPS-2) The Scanning Mobile Particle Sizer combines a differential mobility analyser (DMA) with a condensation particle counter (CPC) to achieve greater sensitivity for small particles.

  12. Effect of Pulsed Nd: YAG Laser Powers On 304 Stainless Steel Welding

    SciTech Connect (OSTI)

    Candan, L.; Demir, A.; Akman, E. [University of Kocaeli, Laser Technologies Research and Application Center, Kocaeli (Turkey)

    2007-04-23

    In this study, optimum welding parameters are obtained for 1mm thickness type 304 stainless steel welding using the Lumonics JK760TR pulsed Nd:YAG laser. The influences of laser welding parameters such as pulse duration, focal position, frequency, laser power, welding speed, and shielding gas (N2) pressure on penetration defining welding quality are investigated. Also comparisons of overlap ratios are presented between theory and experiment for pulse duration, frequency and welding speed.

  13. Apparatus for the concurrent ultrasonic inspection of partially completed welds

    DOE Patents [OSTI]

    Johnson, John A.

    2000-01-01

    An apparatus for the concurrent nondestructive evaluation of partially completed welds is described and which is used in combination with an automated welder and which includes an ultrasonic signal generator mounted on the welder and which generates an ultrasonic signal which is directed toward one side of the partially completed welds; an ultrasonic signal receiver mounted on the automated welder for detecting ultrasonic signals which are transmitted by the ultrasonic signal generator and which are reflected or diffracted from one side of the partially completed weld or which passes through a given region of the partially completed weld; and an analysis assembly coupled with the ultrasonic signal receiver and which processes the ultrasonic signals received by the ultrasonic signal receiver to identify welding flaws in the partially completed weld.

  14. HEAT INPUT AND POST WELD HEAT TREATMENT EFFECTS ON

    Office of Scientific and Technical Information (OSTI)

    INPUT AND POST WELD HEAT TREATMENT EFFECTS ON REDUCED-ACTIVATION FERRITIC/MARTENSITIC STEEL FRICTION STIR WELDS Wei Tang, Jian Chen, Xinghua Yu, David A. Frederick, Zhili Feng Oak Ridge National Laboratory, Oak Ridge, TN Keywords: Eurofer'97, friction stir welding, microstructure, microhardness Abstract Reduced-activation ferritic/martensitic (RAFM) steels are an important class of structural materials for fusion reactor internals developed in recent years because of their improved irradiation

  15. High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon lm075_hovanski_2013_o.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2014: High Speed Joining of Dissimilar Alloy Aluminum Tailor Welded Blanks Vehicle Technologies Office

  16. HEAT INPUT AND POST WELD HEAT TREATMENT EFFECTS ON REDUCED-ACTIVATION...

    Office of Scientific and Technical Information (OSTI)

    are an important class of structural materials for fusion reactor internals developed ... among welding heat input, weld structure characterization and mechanical properties. ...

  17. Weld monitor and failure detector for nuclear reactor system

    DOE Patents [OSTI]

    Sutton, Jr., Harry G.

    1987-01-01

    Critical but inaccessible welds in a nuclear reactor system are monitored throughout the life of the reactor by providing small aperture means projecting completely through the reactor vessel wall and also through the weld or welds to be monitored. The aperture means is normally sealed from the atmosphere within the reactor. Any incipient failure or cracking of the weld will cause the environment contained within the reactor to pass into the aperture means and thence to the outer surface of the reactor vessel where its presence is readily detected.

  18. Method and device for frictional welding (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    the friction welding, process, further contributing to the complete seal that is obtained. ... URANIUM; STORAGE; ROTATION; SEALS; CONTAINERS 050900; TRANSPORT, HANDLING, AND STORAGE

  19. SF 2001-WLD;CONTRACTOR WELDING, CUTTING AND BRAZING

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    01-WLD (11-2012) Supersedes (4-2010) Issue CONTRACTOR WELDING, CUTTING, BRAZING P ART 1: CO NT R ACT O R' S E X PO S UR E AS S E S SM ENT Identify what welding, cutting and/or brazing you are doing: (Check box or fill-in type below) Welding Thermal Cutting Brazing (No cadmium filler BAg-1 or BAg- 2; Silver not to exceed 45%) MIG Oxy-acetylene Oxy-acetylene TIG Stick Plasma arc Other Identify the base metal you are welding, cutting or brazing: (Check box or fill-in below) Carbon steel Galvanized

  20. Fluid Flow Phenomena during Welding (Book) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    humped beads, finger penetration, and undercutting. Instabilities in the liquid film around the keyhole in electron beam and laser welds are responsible for the uneven...

  1. Santa Fe Community College offers new welding program

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Santa Fe Community College Offers Welding Program Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: Dec. 2015-Jan. 2016...

  2. Assessing Steel Pipeline and Weld Susceptibility to Hydrogen...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Can gas impurities mitigate embrittlement effect? ... in steels in high-pressure H 2 gas - Industrially ... metal arc weld (GMAW) Fusion Zone Heat affected zone (HAZ) Base ...

  3. Method of automatically welding with a non-consumable electrode

    DOE Patents [OSTI]

    Kiefer, Joseph H.

    1982-01-01

    A method for maintaining a constant arc gap between the electrode and the weld puddle by controlling the addition of filler wire based on the arc voltage.

  4. Material flow during friction stir welding: A thermo-mechanically...

    Office of Scientific and Technical Information (OSTI)

    ORNL Tsinghua University, Beijing, China Publication Date: 2014-01-01 OSTI ... Friction Stir Welding Symposium, Beijing, China, 20140519, 20140523 Research Org: Oak ...

  5. A Submarine Welded Ignimbrite-Crystal-Rich Sandstone Facies Associatio...

    Open Energy Info (EERE)

    of rhyolitic welded ignimbrite are intercalated within a submarine, below-storm-wave-base sedimentary succession in the Cambrian Tyndall Group, Mount Read Volcanics, western...

  6. Ductile filler metal alloys for welding nickel aluminide alloys

    DOE Patents [OSTI]

    Santella, Michael L.; McNabb, Jeffrey D.; Sikka, Vinod K.

    2003-04-08

    Nickel aluminum alloys are welded utilizing a nickel based alloy containing zirconium but substantially free of titanium and niobium which reduces the tendency to crack.

  7. Subterranean barriers including at least one weld

    DOE Patents [OSTI]

    Nickelson, Reva A.; Sloan, Paul A.; Richardson, John G.; Walsh, Stephanie; Kostelnik, Kevin M.

    2007-01-09

    A subterranean barrier and method for forming same are disclosed, the barrier including a plurality of casing strings wherein at least one casing string of the plurality of casing strings may be affixed to at least another adjacent casing string of the plurality of casing strings through at least one weld, at least one adhesive joint, or both. A method and system for nondestructively inspecting a subterranean barrier is disclosed. For instance, a radiographic signal may be emitted from within a casing string toward an adjacent casing string and the radiographic signal may be detected from within the adjacent casing string. A method of repairing a barrier including removing at least a portion of a casing string and welding a repair element within the casing string is disclosed. A method of selectively heating at least one casing string forming at least a portion of a subterranean barrier is disclosed.

  8. DOE/SC-ARM-09-023 Ordering ARM Data One-Stop Shopping: Getting the

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    23 Ordering ARM Data One-Stop Shopping: Getting the Data You Need From the ARM Data Archive, www.archive.arm.gov, users can select routine data by browsing in the new ARM Data Discovery Tool-the first interface listed on the page. This tool features pre-selected sorts and search logic to help you find atmospheric and climate data faster. As each selection is made, only ARM data meeting the criteria remain visible, leading to the datastream that best suits your needs. When data are ordered, the

  9. Data acquisition instruments: Psychopharmacology

    SciTech Connect (OSTI)

    Hartley, D.S. III

    1998-01-01

    This report contains the results of a Direct Assistance Project performed by Lockheed Martin Energy Systems, Inc., for Dr. K. O. Jobson. The purpose of the project was to perform preliminary analysis of the data acquisition instruments used in the field of psychiatry, with the goal of identifying commonalities of data and strategies for handling and using the data in the most advantageous fashion. Data acquisition instruments from 12 sources were provided by Dr. Jobson. Several commonalities were identified and a potentially useful data strategy is reported here. Analysis of the information collected for utility in performing diagnoses is recommended. In addition, further work is recommended to refine the commonalities into a directly useful computer systems structure.

  10. Instrumentation for WEC Testing

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ean A. Amon Northwest National Marine Renewable Energy Center MHK Instrumentation Workshop, NREL, July 2012 The Northwest National Marine Renewable Energy Center * A partnership between Oregon State University, the University of Washington, & the National Renewable Energy Lab. * Develop a full range of capabilities to support wave and tidal energy development, from small-scale lab and tank systems to full-scale ocean facilities. * Center activities are structured to: * facilitate device

  11. Beam Instrumentation Workshop

    SciTech Connect (OSTI)

    Shafer, R.E. )

    1994-01-01

    The fifth annual Beam Instrumentation Workshop was hosted by Los Alamos National Laboratory in Santa Fe, New Mexico. These proceedings represent the papers presented at the Workshop. A variety of topics were covered including beam emittance diagnostics, fluorescent screens, control systems for many accelerators and photon sources. Beam monitoring was discussed in great detail. There were thirty seven papers presented at the Workshop and all have been abstracted for the Energy and Science Technology database. (AIP)

  12. REVIEW OF SCIENTIFIC INSTRUMENTS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    REVIEW OF SCIENTIFIC INSTRUMENTS 81, 123503 (2010) The rotating wall machine: A device to study ideal and resistive magnetohydrodynamic stability under variable boundary conditions C. Paz-Soldan, W. F. Bergerson, M. I. Brookhart, D. A. Hannum, R. Kendrick, G. Fiksel, and C. B. Forest Department of Physics, University of Wisconsin, 1150 University Ave, Madison, Wisconsin 53706, USA (Received 31 July 2010; accepted 4 October 2010; published online 7 December 2010) The rotating wall machine, a

  13. Rain Gauge Instrument Handbook

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    0 Rain Gauge Instrument Handbook MJ Bartholomew January 2016 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.

  14. Weld pool development during GTA and laser beam welding of Type 304 stainless steel; Part I - theoretical analysis

    SciTech Connect (OSTI)

    Zacharia, T.; David, S.A.; Vitek, J.M. ); Debroy, T. )

    1989-12-01

    A computational and experimental study was carried out to quantitatively understand the influence of the heat flow and the fluid flow in the transient development of the weld pool during gas tungsten arc (GTA) and laser beam welding of Type 304 stainless steel. Stationary gas tungsten arc and laser beam welds were made on two heats of Type 304 austenitic stainless steels containing 90 ppm sulfur and 240 ppm sulfur. A transient heat transfer model was utilized to simulate the heat flow and fluid flow in the weld pool. In this paper, the results of the heat flow and fluid flow analysis are presented.

  15. Instrumentation and diagnostics

    SciTech Connect (OSTI)

    Nakaishi, C.V.; Bedick, R.C.

    1990-12-01

    This Technology Status Report describes research and accomplishments for the Instrumentation and Diagnostics (I D) Projects within the Advanced Research and Technology Development (AR TD) Program of the United States Department of Energy (DOE) Office of Fossil Energy (FE). Process understanding and control can be improved through the development of advanced instrumentation and diagnostics. The thrust of the I D Projects is to further develop existing measurement and control techniques for application to advanced coal-based technologies. Project highlights are: an inductively coupled plasma (ICP) instrument has been developed to analyze trace elements in gasification and combustion process streams. An in situ two-color Mie scattering technique with LSS can simultaneously measure the size, velocity, and elemental composition of coal particles during combustion. A high-temperature, fluorescence thermometry technique has accurately measured gas temperatures during field testing in combustion and gasification environments. Expert systems have been developed to improve the control of advanced coal-based processes. Capacitance flowmeters were developed to determine the mass flowrate, solid volume fraction, and particle velocities of coal slurries. 32 refs., 9 figs.

  16. FHR Process Instruments

    SciTech Connect (OSTI)

    Holcomb, David Eugene

    2015-01-01

    Fluoride salt-cooled High temperature Reactors (FHRs) are entering into early phase engineering development. Initial candidate technologies have been identified to measure all of the required process variables. The purpose of this paper is to describe the proposed measurement techniques in sufficient detail to enable assessment of the proposed instrumentation suite and to support development of the component technologies. This paper builds upon the instrumentation chapter of the recently published FHR technology development roadmap. Locating instruments outside of the intense core radiation and high-temperature fluoride salt environment significantly decreases their environmental tolerance requirements. Under operating conditions, FHR primary coolant salt is a transparent, low-vapor-pressure liquid. Consequently, FHRs can employ standoff optical measurements from above the salt pool to assess in-vessel conditions. For example, the core outlet temperature can be measured by observing the fuel s blackbody emission. Similarly, the intensity of the core s Cerenkov glow indicates the fission power level. Short-lived activation of the primary coolant provides another means for standoff measurements of process variables. The primary coolant flow and neutron flux can be measured using gamma spectroscopy along the primary coolant piping. FHR operation entails a number of process measurements. Reactor thermal power and core reactivity are the most significant variables for process control. Thermal power can be determined by measuring the primary coolant mass flow rate and temperature rise across the core. The leading candidate technologies for primary coolant temperature measurement are Au-Pt thermocouples and Johnson noise thermometry. Clamp-on ultrasonic flow measurement, that includes high-temperature tolerant standoffs, is a potential coolant flow measurement technique. Also, the salt redox condition will be monitored as an indicator of its corrosiveness. Both electrochemical techniques and optical spectroscopy are candidate fluoride salt redox measurement methods. Coolant level measurement can be performed using radar-level gauges located in standpipes above the reactor vessel. While substantial technical development remains for most of the instruments, industrially compatible instruments based upon proven technology can be reasonably extrapolated from the current state of the art.

  17. Window shopping

    SciTech Connect (OSTI)

    Best, D.

    1990-03-01

    The author addresses the energy efficiency of windows and describes changes and new products available in this consumer information article. Experiments currently being done by Lawrence Berkeley Laboratory (LBL), Bonneville Power Authority and the Washington State Energy Office show that some of these superwindows collect more energy from the sun than they let escape from inside the home. One type of window in current production is the low-E (low-emissivity) and the IGUs (insulated glass units). Low-E techniques include glazing of the glass with various materials including polyester and metallic coatings. Other measures include filling the airspace in double pane windows with argon, aerogel or by creating a vacuum in the airspace. Another factor the author considers is ultraviolet light protection.

  18. Friction Stir Welding Aluminum for Lightweight Vehicles | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Friction Stir Welding Aluminum for Lightweight Vehicles Friction Stir Welding Aluminum for Lightweight Vehicles Addthis Description In this video, a researcher from Pacific Northwest National Laboratory describes a new aluminum joining process and the industry partnership that enabled its use for mass auto production

  19. Shielded metal arc welding of AISI 4340 alloy steel. Welding procedure specification

    SciTech Connect (OSTI)

    Wodtke, C.H.; Frizzell, D.R.; Plunkett, W.A.

    1985-08-01

    Procedure WPS-115 is qualified under Section IX of the ASME Boiler and Pressure Vessel Code for shielded metal arc welding of AISI 4340 alloy steel, in thickness range 0.187 to 2 inch; filler metal is E7018 (F-4, A-1).

  20. Solidification behavior and structure of Al-Cu alloy welds

    SciTech Connect (OSTI)

    Brooks, J.A.; Li, M.; Yang, N.C.Y.

    1997-09-01

    The microsegregation behavior of electron beam (EB) and gas tungsten arc (GTA) welds of Al-Cu alloys covering a range from 0.19 to 7.74 wt% Cu were characterized for dendrite core concentrations and fraction eutectic solidification. Although a single weld speed of 12.7 mm/sec was used, some differences were observed in the segregation behavior of the two weld types. The microsegregation behavior was also modeled using a finite differences technique considering dendrite tip and eutectic undercooling and solid state diffusion. Fairly good agreement was observed between measured and calculated segregation behavior although differences between the two weld types could not be completely accounted for. The concept of dendrite tip undercooling was used to explain the formation of a single through thickness centerline grain in the higher alloy content GTA welds.