Laser pulse shaping for additive manufacturing

Demuth, James A.; Bayramian, Andrew J.; Duoss, Eric B.; Kuntz, Joshua D.; Spadaccini, Christopher M.

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A - human necessities
A01 - agriculture
A21 - baking
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Title: Laser pulse shaping for additive manufacturing

Abstract

A system for additive manufacturing uses a pulsed laser beam with one or more low flux components on the order of kW/cm2, and one or more high flux components on the order of MW/cm2 during the duration of the pulse. The pulsed laser beam is directed onto the powder particles on the substrate thereby melting the powder particles and melting the substrate at the interface layer between the powder and the substrate such that the powder particles bond to the substrate. This is accomplished by using low power (and low cost) lasers to do the majority of the energy transfer, and using high power (and higher cost) lasers to complete the melting process, overcoming the kinetics of powder agglomeration through surface tension forces by partially melting the powder-substrate interface layer before surface tension can take effect on the molten powder particles.

Inventors:: Demuth, James A.; Bayramian, Andrew J.; Duoss, Eric B.; Kuntz, Joshua D.; Spadaccini, Christopher M.

Issue Date:: Tue Aug 13 00:00:00 EDT 2019

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1568706

Patent Number(s):: 10376987

Application Number:: 15/010,107

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

Show more

B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
B23K26/0622 - by shaping pulses
B23K26/066 - by using masks
B23K26/342 - Build-up welding

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C64/153 - using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C64/273 - pulsed
B29C64/282 - of the same type, e.g. using different energy levels
B29C64/286 - Optical filters, e.g. masks

B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
B33Y10/00 - Processes of additive manufacturing
B33Y30/00 - Apparatus for additive manufacturing
B33Y50/02 - for controlling or regulating additive manufacturing processes

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/25 - by increasing the energy efficiency of the process

Show less

DOE Contract Number:: AC52-07NA27344

Resource Type:: Patent

Resource Relation:: Patent File Date: 01/29/2016

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Demuth, James A., Bayramian, Andrew J., Duoss, Eric B., Kuntz, Joshua D., and Spadaccini, Christopher M. Laser pulse shaping for additive manufacturing.  United States: N. p., 2019. 
        Web.

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                    Demuth, James A., Bayramian, Andrew J., Duoss, Eric B., Kuntz, Joshua D., & Spadaccini, Christopher M. Laser pulse shaping for additive manufacturing.  United States.

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                    Demuth, James A., Bayramian, Andrew J., Duoss, Eric B., Kuntz, Joshua D., and Spadaccini, Christopher M. Tue .  
        "Laser pulse shaping for additive manufacturing".  United States.  https://www.osti.gov/servlets/purl/1568706.

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@article{osti_1568706,

  title        = {Laser pulse shaping for additive manufacturing},

  author       = {Demuth, James A. and Bayramian, Andrew J. and Duoss, Eric B. and Kuntz, Joshua D. and Spadaccini, Christopher M.},

  abstractNote = {A system for additive manufacturing uses a pulsed laser beam with one or more low flux components on the order of kW/cm2, and one or more high flux components on the order of MW/cm2 during the duration of the pulse. The pulsed laser beam is directed onto the powder particles on the substrate thereby melting the powder particles and melting the substrate at the interface layer between the powder and the substrate such that the powder particles bond to the substrate. This is accomplished by using low power (and low cost) lasers to do the majority of the energy transfer, and using high power (and higher cost) lasers to complete the melting process, overcoming the kinetics of powder agglomeration through surface tension forces by partially melting the powder-substrate interface layer before surface tension can take effect on the molten powder particles.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Aug 13 00:00:00 EDT 2019},

  month        = {Tue Aug 13 00:00:00 EDT 2019}

}

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Similar Records

Title: Laser pulse shaping for additive manufacturing

Abstract

Citation Formats

System and method for high power diode based additive manufacturing patent-application, September 2014

Apparatus and Method for Forming Three-Dimensional Objects patent-application, October 2015

System And Method For Enhanced Additive Manufacturing patent-application, December 2014

Method and Apparatus for Three-Dimensional Additive Manufacturing with a High Energy High Power Ultrafast Laser patent-application, December 2015

Multiple material systems for selective beam sintering patent, July 1990

Selective Laser Solidification Apparatus and Method patent-application, September 2014

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Device for the High-Resolution Mapping and Analysis of Elements in Solids patent-application, March 2014

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Method for manufacturing objects using powder products patent-application, October 2015

Laser Processing of a Bed of Powered Material with Variable Masking patent-application, May 2015

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Machine for Forming a Container patent-application, April 2013

Method for selective laser sintering with layerwise cross-scanning patent, October 1992

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Holographic Display Systems, Methods and Devices patent-application, October 2013

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Three-dimensional metal fabrication using a laser patent, May 1994

Method and System for Electrical Circuit Repair patent-application, November 2011

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System and method for high power diode based additive manufacturing
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Apparatus and Method for Forming Three-Dimensional Objects
patent-application, October 2015

System And Method For Enhanced Additive Manufacturing
patent-application, December 2014

Method and Apparatus for Three-Dimensional Additive Manufacturing with a High Energy High Power Ultrafast Laser
patent-application, December 2015

Multiple material systems for selective beam sintering
patent, July 1990

Selective Laser Solidification Apparatus and Method
patent-application, September 2014

Applications, Methods and Systems for a Laser Deliver Addressable Array
patent-application, November 2016

Device for the High-Resolution Mapping and Analysis of Elements in Solids
patent-application, March 2014

Three-Dimensional Printing Using Carbon Nanostructures
patent-application, December 2015

Method and Apparatus for Three-Dimensional Printing
patent-application, May 2017

Method for manufacturing objects using powder products
patent-application, October 2015

Laser Processing of a Bed of Powered Material with Variable Masking
patent-application, May 2015

Laser-directed fabrication of full-density metal articles using hot isostatic processing
patent, June 1997

Multiple material systems for selective beam sintering
patent, January 1995

Method and apparatus of irradiating a surface of a workpiece with a plurality of beams
patent, October 1997

Slab laser and amplifier and method of use
patent-application, October 2015

Machine for Forming a Container
patent-application, April 2013

Method for selective laser sintering with layerwise cross-scanning
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Three-Dimensional Microfabricated Bioreactors with Embedded Capillary Network
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Method and Apparatus for Generating Electron Beams
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Device for the Additive Manufacture of a Component
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