Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets

Whalen, Scott A.; Reza-E-Rabby, Md.; Lavender, Curt A.; Taysom, Brandon Scott

Title: Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets

Abstract

Devices and methods for performing shear-assisted extrusion processes for forming extrusions of a desired composition from a feedstock material are provided. The processes can use a device having a scroll face having an inner diameter portion bounded by an outer diameter portion, and a member extending from the inner diameter portion beyond a surface of the outer diameter portion.Extrusion feedstocks and extrusion processes are provided for forming extrusions of a desired composition from a feedstock. The processes can include providing a feedstock having at least two different materials and engaging the materials with one another within a feedstock container.Methods for preparing metal sheets are provided that can include preparing a metal tube via shear assisted processing and extrusion; opening the metal tube to form a sheet having a first thickness; and rolling the sheet to a second thickness that is less than the first thickness.

Inventors:: Whalen, Scott A.; Reza-E-Rabby, Md.; Lavender, Curt A.; Taysom, Brandon Scott

Issue Date:: 2022-07-12

Research Org.:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1924881

Patent Number(s):: 11383280

Application Number:: 16/562,314

Assignee:: Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21C - MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING

Show more

B - PERFORMING OPERATIONS B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21C - MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING
B21C23/002 - {Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences}
B21C23/04 - by direct extrusion
B21C23/218 - {Indirect extrusion presses}
B21C23/22 - Making metal-coated products

Show less

DOE Contract Number:: AC05-76RL01830

Resource Type:: Patent

Resource Relation:: Patent File Date: 09/05/2019

Country of Publication:: United States

Language:: English

Citation Formats


                    Whalen, Scott A., Reza-E-Rabby, Md., Lavender, Curt A., and Taysom, Brandon Scott. Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets.  United States: N. p., 2022. 
        Web.

Copy to clipboard


                    Whalen, Scott A., Reza-E-Rabby, Md., Lavender, Curt A., & Taysom, Brandon Scott. Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets.  United States.

Copy to clipboard


                    Whalen, Scott A., Reza-E-Rabby, Md., Lavender, Curt A., and Taysom, Brandon Scott. Tue .  
        "Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets".  United States.  https://www.osti.gov/servlets/purl/1924881.

Copy to clipboard


                    
@article{osti_1924881,

  title        = {Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets},

  author       = {Whalen, Scott A. and Reza-E-Rabby, Md. and Lavender, Curt A. and Taysom, Brandon Scott},

  abstractNote = {Devices and methods for performing shear-assisted extrusion processes for forming extrusions of a desired composition from a feedstock material are provided. The processes can use a device having a scroll face having an inner diameter portion bounded by an outer diameter portion, and a member extending from the inner diameter portion beyond a surface of the outer diameter portion.Extrusion feedstocks and extrusion processes are provided for forming extrusions of a desired composition from a feedstock. The processes can include providing a feedstock having at least two different materials and engaging the materials with one another within a feedstock container.Methods for preparing metal sheets are provided that can include preparing a metal tube via shear assisted processing and extrusion; opening the metal tube to form a sheet having a first thickness; and rolling the sheet to a second thickness that is less than the first thickness.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2022},

  month        = {7}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Structure for joining members including a nut and an auxiliary member
patent, August 2012

Tanaka, Kazuharu; Fukuda, Hiroshi
US Patent Document 8,240,540
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8240540

Systems and Methods for Joining Components
patent-application, June 2016

Fan, Hua-Tzu; Wang, Chen-Shih; Arinez, Jorge F.
US Patent Application 14/568363; 20160167353
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160167353

Aluminum Alloy Extrudate Excellent In Bending Crush Resistance And Corrosion Resistance
patent-application, July 2012

Ihara, Kentaro; Shikama, Takahiro
US Patent Application 13/395709; 20120168045
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120168045

Hybrid disk-cone extrusion die assembly
patent, October 2003

Davidson, Randolph Lee; Blemberg, Robert J.
US Patent Document 6,638,462
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6638462

Friction Stir Extrusion of Nonweldable Materials for Downhole Tools
patent-application, August 2017

Utter, Robert J.; Fleck, Rodney; Steel, Russell J.
US Patent Application 15/324866; 20170216961
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170216961

Friction-Stir Extruders and Friction-Stir Extrusion Processes
patent-application, March 2015

Eller, Michael; Li, Zhixian; Schuengel, Kevin
US Patent Application 14/489076; 20150075242
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150075242

Joining Method
patent-application, May 2017

Ueno, Yasuhiro; Kiyono, Takaaki; Hirota, Toyokazu
US Patent Application 15/128565; 20170136686
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170136686

High-Strength Aluminum Alloy Product And Method Of Producing The Same
patent-application, March 2010

Iwamura, Shingo; Minoda, Tadashi; Kato, Katsuya
US Patent Application 12/312704; 20100059151
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100059151

Mg-based alloy
patent, November 2012

Somekawa, Hidetoshi; Singh, Alok; Osawa, Yoshiaki
US Patent Document 8,313,692
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8313692

Friction Stir Welding System and Method
patent-application, February 2008

Forrest, Mariana G.; Lu, Feng; Logan, Stephen D.
US Patent Application 11/466,875; 2008/0048005 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080048005

Magnesium: Current and potential automotive applications
journal, February 2002

Luo, Alan A.
JOM, Vol. 54, Issue 2
https://doi.org/10.1007/BF02701073

Enhanced Friction-Stir-Welding Joint Strength Between Steel and Aluminum with Surface Coating and Preformed Local Texture
patent-application, January 2017

Li, Huaxin
US Patent Application 14/791584; 20170008121
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170008121

Method for producing seamless hollow extruded products of aluminum alloy and die set therefor
patent-application, March 2012

Kwok, Lai Yee
US Patent Application 09/837781; 20020029601
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020029601

Method for manufacturing permanent magnets
patent, January 1989

Inoue, Nobuyuki; Takahashi, Katsumi; Imaizumi, Nobuo
US Patent Document 4,801,340
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4801340

Tool Temperature and Process Modeling of Friction Stir Welding
journal, January 2018

Nakamura, Takashi; Obikawa, Toshiyuki; Yukutake, Eitaro
Modern Mechanical Engineering, Vol. 08, Issue 01
https://doi.org/10.4236/mme.2018.81006

Method of making bonded or sintered permanent magnets
patent, November 1995

McCallum, R. William; Dennis, Kevin; Lograsso, Barbara K.
US Patent Document 5,470,401
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5470401

A preliminary study on the feasibility of friction stir back extrusion
journal, May 2012

Abu-Farha, Fadi
Scripta Materialia, Vol. 66, Issue 9, p. 615-618
https://doi.org/10.1016/j.scriptamat.2012.01.059

Method and apparatus for extrusion of tubing sheeting and profile shapes
patent, October 1995

Lessen, Martin
US Patent Document 5,461,898
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5461898

Extrusion Press Systems And Methods
patent-application, April 2014

Stewart, Charles
US Patent Application 13/650977; 20140102161
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140102161

Friction Stir Weld Tool and Method
patent-application, December 2016

Boettcher, Eric J.; Seid, Alan P.
US Patent Application 15/169,808; 2016/0354860 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160354860

Friction Stir Welding Tool And Friction Stir Welding Method
patent-application, March 2009

Nagano, Yoshitaka
US Patent Application 12/224992; 20090072007
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090072007

Joined body and process for manufacturing the same
patent-application, November 2009

Watanabe, Goro; Suganuma, Tetsuya
US Patent Application 12/453662; 20090291322
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090291322

Metal Joining Method and Metal Joined Member
patent-application, June 2017

Tokoro, Yosuke; Sayama, Mitsuru
US Patent Application 15/368,681; 2017/0182587 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170182587

Method of making magnets by polymer-coating magnetic powder
patent, January 1976

Doser, Manfred; Floryan, Daniel E.
US Patent Document 3,933,536
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3933536

Aluminium-steel lap joining by multipass friction stir welding
journal, September 2016

Leitao, C.; Arruti, E.; Aldanondo, E.
Materials & Design, Vol. 106
https://doi.org/10.1016/j.matdes.2016.05.101

Method of making magnets
patent, July 1975

Reid, William R.
US Patent Document 3,892,603
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3892603

Friction stir welding tool having a counterflow pin configuration
patent-application, October 2008

Burford, Dwight A.
US Patent Application 11/786961; 20080251571
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080251571

Friction stirring interlocking of dissimilar materials
patent, August 2019

Whalen, Scott A.; Reza-E-Rabby, Md.; Ross, Kenneth A.
US Patent Document 10,369,748
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10369748

Different-Material Joining Structure
patent-application, December 2018

Iwase, Tetsu
US Patent Application 16/061144; 20180354231
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180354231

Method of making magnets
patent, August 1976

Paladino, Albert E.; Weihrauch, Paul F.
US Patent Document 3,977,918
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3977918

Friction-Stir Joining Method
patent-application, March 2014

Sayama, Mitsuru; Tsuta, Keisuke; Kobayashi, Tsutomu
US Patent Application 14/030,328; 2014/0076957 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140076957

Friction Stir Welding Method and Joined Body
patent-application, August 2017

Ito, Takashi; Tomioka, Taizo
US Patent Application 15/401747; 20170225265
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170225265

Apparatus for Extruding Cylindrical Magnets
patent, February 1972

Rowe, Robert L.; Peccerill, Donald
US Patent Document 3,640,657
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3640657

High ductility aluminum alloy made from powder by friction extrusion
journal, June 2019

Whalen, Scott; Olszta, Matthew; Roach, Christian
Materialia, Vol. 6
https://doi.org/10.1016/j.mtla.2019.100260

Compositions and methods for dissimilar material welding
patent, April 2014

Messer, Barry; Seitz, Shawn
US Patent Document 8,695,868
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8695868

Extrusion Die for Forming Hollow Material
patent-application, August 2016

Hayashi, Haisei; Mochizuki, Yuji
US Patent Application 15/023201; 20160228932
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160228932

Induction Motor Rotor and a Method of Manufacturing the Same
patent-application, June 2017

Emberton, James; Lambourne, Alexis; Cullen, John J. A.
US Patent Application 15/357,647; 2017/0163135 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170163135

Fabrication of High Performance Magnesium/Carbon-Fiber/PEEK Laminated Composites
journal, January 2003

Kuo, M. C.; Huang, J. C.; Chen, M.
MATERIALS TRANSACTIONS, Vol. 44, Issue 8
https://doi.org/10.2320/matertrans.44.1613

Apparatus for ultrasonically assisted melt extrusion of fibers
patent, March 2000

Jameson, Lee Kirby
US Patent Document 6,036,467
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6036467

Welded component
patent, January 2008

Bartsch, Herbert; Scarlin, Richard Brendon
US Patent Document 7,314,670
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7314670

Forming metallic composite materials by urging base materials together under shear
patent, November 1993

Thomas, Wayne M.; Nicholas, Edward D.; Jones, Stephen B.
US Patent Document 5,262,123
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5262123

Intermetallic compounds in Al 6016/IF-steel friction stir spot welds
journal, June 2010

Bozzi, S.; Helbert-Etter, A. L.; Baudin, T.
Materials Science and Engineering: A, Vol. 527, Issue 16-17
https://doi.org/10.1016/j.msea.2010.03.097

Method of plastic forming of materials
patent, April 1998

Korbel, Andrzej; Bochniak, Wlodzimierz
US Patent Document 5,737,959
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5737959

Friction Spot Welding and Friction Seam Welding
patent-application, December 2015

Kavala, Prasad Rao; Akram, Javed; Tshibind, Alex Ilunga
US Patent Application 14/762,705; 2015/0360317 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150360317

Friction Stir Welding Tool and Process For Welding Dissimilar Materials
patent-application, December 2011

Hovanski, Yuri; Grant, Glenn J.; Jana, Saumyadeep
US Patent Application 12/818739; 20110309131
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110309131

Microstructure and mechanical properties of equimolar FeCoCrNi high entropy alloy prepared via powder extrusion
journal, August 2016

Liu, Bin; Wang, Jingshi; Liu, Yong
Intermetallics, Vol. 75
https://doi.org/10.1016/j.intermet.2016.05.006

Aluminium powder metallurgy technology for high-strength applications
journal, June 1981

Pickens, J. R.
Journal of Materials Science, Vol. 16, Issue 6
https://doi.org/10.1007/BF02396863

Anisotropic nanocomposite rare earth permanent magnets and method of making
patent-application, January 2006

Liu, Shiqiang; Lee, Don
US Patent Application 11/171521; 20060005898
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060005898

Aluminum alloy products and methods of preparation
patent, November 1976

Morris, Larry Roy
US Patent Document 3,989,548
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3989548

Method of friction stir welding dissimilar metals and workpiece assemblies formed thereby
patent-application, May 2011

Kou, Sindo; Firouzdor, Vahid
US Patent Application 12/589948; 20110104515
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110104515

Method for Low-Temperature Joining of Metal Materials, and Joint Structure
patent-application, July 2021

Fujii, Hidetoshi; Ueji, Rintaro; Morisada, Yoshiaki
US Patent Application 16/080,780; 2021/0205918 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20210205918

Equal-Channel Angular Extrusion of a Low-Density High-Entropy Alloy Produced by High-Energy Cryogenic Mechanical Alloying
journal, September 2014

Hammond, Vincent H.; Atwater, Mark A.; Darling, Kristopher A.
JOM, Vol. 66, Issue 10
https://doi.org/10.1007/s11837-014-1113-x

Densification of Thermal Spray Coatings
patent-application, December 2004

Clayton, Clive; Herman, Herbert; White, Henry
US Patent Application 10/811,610
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040265503

Method for Forming Hollow Profile Non-circular Extrusions Using Shear Assisted Processing and Extrusion (Shape)
patent-application, November 2018

Joshi, Vineet V.; Whalen, Scott A.; Lavender, Curt A.
US Patent Application 16/028,173; 2018/0311713 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180311713

Method for Operating Double-Action Friction Stir Welding Device, and Double-Action Friction Stir Welding Device
patent-application, March 2021

Okada, Hideki; Yoshikawa, Syuhei; Miyake, Masahiro
US Patent Application 16/644,356; 2021/0086291 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20210086291

Joining of polymers and polymer-metal hybrid structures: Recent developments and trends
journal, August 2009

Amancio-Filho, S. T.; dos Santos, J. F.
Polymer Engineering & Science, Vol. 49, Issue 8
https://doi.org/10.1002/pen.21424

Extrusion of a Metal Alloy Containing Copper and Zinc
patent-application, August 2008

Ignberg, Larz
US Patent Application 11/816578; 20080202653
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080202653

Controlled Speed Friction Stir Tool Probe Bodies Having Non-Linear, Continuous, Monotonically-Decreasing Curved Axial Profiles and Integrated Surface Features
patent-application, January 2016

Burford, Dwight A.
US Patent Application 14/796868; 20160008918
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160008918

Tool, apparatus, and method for welding workpieces
patent, January 2008

Chang, Woong-Seong; Kim, Sook Hwan; Kweon, Young-Gak
US Patent Document 7,322,508
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7322508

Shear-extrusion method
patent, August 2006

Segal, Vladimir
US Patent Document 7,096,705
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7096705

Method of Making Permanent Magnets
patent, May 1972

Denes, Peter A.
US Patent Document 3,661,726
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3661726

Method of Joining Metallic Materials
patent-application, March 2004

Okamoto, Kazutaka; Hirano, Satoshi; Inagaki, Masahisa
US Patent Application 10/358,178; 2004/0057782 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040057782

Method and apparatus for extruding powdered material
patent, August 1995

Hirai, Yoshiki
US Patent Document 5,437,545
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5437545

In-Situ Interlocking of Metals Using Additive Friction Stir Processing
patent-application, June 2016

Kandasamy, Kumar; Schultz, Jeffrey
US Patent Application 14/643396; 20160175982
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160175982

Joining of dissimilar materials
journal, January 2015

Martinsen, K.; Hu, S. J.; Carlson, B. E.
CIRP Annals, Vol. 64, Issue 2
https://doi.org/10.1016/j.cirp.2015.05.006

Solid State Joining Using Additive Friction Stir Processing
patent-application, June 2016

Kandasamy, Kumar
US Patent Application 14/640077; 20160175981
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160175981

Friction stir welding tool having a scroll-free concentric region
patent, September 2011

Burford, Dwight A.
US Patent Document 8,016,179
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8016179

Tapered extrusion die and method of forming the same
patent, September 1981

Bachrach, Benjamin; Fuhrman, William J.
US Patent Document 4,287,749
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4287749

Method of Bonding Dissimilar Metal Materials and Bonded Body of Dissimilar Metal Materials
patent-application, March 2012

Hatakeyama, Tomonobu; Yotsuya, Gouki
US Patent Application 13/193405; 20120052322
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120052322

Method and apparatus for forming elongated articles having reduced diameter cross-sections
patent, November 1981

Thiruvarudchelvan, Sinnathamby
US Patent Document 4,300,378
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4300378

Nanocomposite Permanent Magnets And Methods Of Making The Same
patent-application, January 2014

Johnson, Francis; Colborn, Robert; Marte, Judson
US Patent Application 13/538229; 20140002220
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140002220

Magnets with varying magnetization direction and method of making such magnets
patent, September 2005

Creighton, Francis M.
US Patent Document 6,940,379
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6940379

Numerical studies on effect of axial pressure in friction stir welding
journal, April 2007

Zhang, Z.; Zhang, H. W.
Science and Technology of Welding and Joining, Vol. 12, Issue 3
https://doi.org/10.1179/174329307X177919

High energy ball milling method for making rare earth-transition metal-boron permanent magnets
patent, October 1988

Clemens, Bruce M.
US Patent Document 4,778,542
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4778542

Top Nd-Fe-B magnets with greater than 56 MGOe energy density and 9.8 kOe coercivity
journal, September 2002

Rodewald, W.; Wall, B.; Katter, M.
IEEE Transactions on Magnetics, Vol. 38, Issue 5, p. 2955-2957
https://doi.org/10.1109/TMAG.2002.803075

Forming of materials
patent, May 1975

Green, Derek
US Patent Document 3,884,062
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3884062

Method of making self-aligning anisotropic powder for magnets
patent, June 1991

Young, Kevin A.; Plackard, Dennis L.
US Patent Document 5,026,438
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5026438

Friction Stir Welding of Dissimilar Metals
patent-application, April 2010

Szymanski, Robert T.; Chimbli, Sri Krishna; Hall, Mark T.
US Patent Application 12/418,663; 2010/0089976 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100089976

Extrusion Die Device
patent-application, June 2010

Tsai, Ping-Hsun; Hsu, Chih-Peng; Chang, Wan-Chi
US Patent Application 12/613240; 20100132430
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100132430

Method of Welding Dissimilar Metal Materials and Welded Body of Dissimilar Metal Materials
patent-application, October 2012

Hatakeyama, Tomonobu; Yotsuya, Gouki
US Patent Application 13/430,315; 2012/0258332 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120258332

Friction Stir Method
patent-application, June 2011

Nakagawa, Koichi; Liu, Qing; Shiozawa, Isao
US Patent Application 12/750883; 20110132970
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110132970

Different Material Welded Structure
patent-application, September 2014

Ohhama, Shosuke; Miyahara, Tetsuya
US Patent Application 14/016,306; 2014/0248508 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140248508

Mandrel Tool Probe For Friction Stir Welding
patent-application, March 2013

Burford, Dwight A.
US Patent Application 13/623590; 20130075452
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130075452

Method for making rare-earth element containing permanent magnets
patent, April 1986

Narasimhan, Kalatur S. V. L.; Dulis, Edward J.
US Patent Document 4,585,473
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4585473

Designing a magnesium alloy with high strength and high formability
journal, June 2018

Trang, T. T. T.; Zhang, J. H.; Kim, J. H.
Nature Communications, Vol. 9, Issue 1
https://doi.org/10.1038/s41467-018-04981-4

System and Process for Formation of Extrusion Products
patent-application, March 2017

Lavendar, Curtis A.; Joshi, Vineet V.; Grant, Glenn J.
US Patent Application 15/351201; 20170056947
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170056947

Method for Welding at Least Two Layers
patent-application, April 2015

Pascal, Jacques; Simar, Aude; Van Der Rest, Camille
US Patent Application 14/397856; 20150115019
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150115019

Structure and method for joining members of structure via friction stir processing
patent, June 2011

Fukuda, Hiroshi
US Patent Document 7,954,692
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7954692

Method of making anisotropic magnets
patent, January 1991

Chatterjee, Dilip K.
US Patent Document 4,985,085
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4985085

Method of joining metallic materials
patent, January 2005

Okamoto, Kazutaka; Hirano, Satoshi; Inagaki, Masahisa
US Patent Document 6,843,405
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6843405

System for and Method of Linking by Friction Welding a First Piece of Steel to a Second Piece of Steel with Use of Ni-Based Alloys Adapter
patent-application, February 2018

Huysmans, Staf
US Patent Application 15/555,647; 2018/0043467 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180043467

Method of making fully dense anisotropic high energy magnets
patent, January 1990

Chatterjee, Dilip K.
US Patent Document 4,892,596
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4892596

Method of and apparatus for joining plate members by the use of anchor pegs
patent, April 1998

Sunamoto, Kenichi; Sasaki, Naoki
US Patent Document 5,739,498
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5739498

Heat-Aged Sintered Cobalt-Rare Earth Intermetallic Product and Process
patent, August 1972

Benz, Mark G.; Martin, Donald L.
US Patent Document 3,684,593
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3684593

Method of consolidating FeNdB magnets
patent, February 1989

Anderson, Raymond L.; Groza, Joanna R.; Oslin, Brian
US Patent Document 4,808,224
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4808224

System and process for formation of extrusion products
patent, January 2019

Lavender, Curtis A.; Joshi, Vineet V.; Grant, Glenn J.
US Patent Document 10,189,063
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10189063

Method of making permanent magnets
patent, September 1993

McCallum, R. William; Dennis, Kevin; Lograsso, Barbara K.
US Patent Document 5,242,508
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5242508

Functionally graded coatings and claddings
patent, June 2020

Joshi, Vineet V.; Grant, Glenn J.; Lavender, Curt A.
US Patent Document 10,695,811
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10695811

Multi-metal composite gear/shaft
patent, February 1996

Wadleigh, Albert S.
US Patent Document 5,492,264
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5492264

Providing Plastic Zone Extrusion
patent-application, January 2012

Manchiraju, Venkata; Feng, Zhili
US Patent Application 13/178746; 20120006086
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120006086

Thermomagnetically patterned magnets and method of making same
patent, February 1992

Bradley, John R.; Perry, Thomas A.; Schroeder, Thaddeus
US Patent Document 5,089,060
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5089060

Atomization methods for forming magnet powders
patent, February 2000

Sellers, Charles Howard; Branagan, Daniel James; Hyde, Timothy A.
US Patent Document 6,022,424
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6022424

Friction Stir Extrusion: A new process for joining dissimilar materials
journal, August 2015

Evans, William T.; Gibson, Brian T.; Reynolds, Jay T.
Manufacturing Letters, Vol. 5
https://doi.org/10.1016/j.mfglet.2015.07.001

Components and Systems for Friction Stir Welding and Related Processes
patent-application, February 2018

Das, Sazol Kumar; Ahmed, Hany; Bhaskaran, Ganesh
US Patent Application 15/496,047; 2018/0050419 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180050419

Anisotropic Properties of Magnesium Sheet AZ31
journal, March 2003

Kaiser, F.; Letzig, Dietmar; Bohlen, Jan
Materials Science Forum, Vol. 419-422
https://doi.org/10.4028/www.scientific.net/MSF.419-422.315

Components and Systems for Friction Stir Welding and Related Processes
patent-application, September 2019

Das, Sazol Kumar; Ahmed, Hany; Bhaskarn, Ganesh
US Patent Application 16/423,757; 2019/0275608 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20190275608

Special-purpose Die for Shaping Aluminum-magnesium Alloy by Rotating Extrusion
patent-application, December 2018

Zhang, Zhimin; Yu, Jianmin; Wang, Qiang
US Patent Application 15/947972; 20180369889
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180369889

Electrode material and method for manufacture thereof
patent-application, December 2004

Kawazoe, Masataka; Hasegawa, Hideyuki; Taketani, Katsuyuki
US Patent Application 10/825778; 20040238501
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040238501

System and Process for Formation of Extrusion Structures
patent-application, September 2014

Lavender, Curtis A.; Joshi, Vineet V.; Paxton, Dean M.
US Patent Application 14/222468; 20140283574
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140283574

A Review of Dissimilar Welding Techniques for Magnesium Alloys to Aluminum Alloys
journal, May 2014

Liu, Liming; Ren, Daxin; Liu, Fei
Materials, Vol. 7, Issue 5
https://doi.org/10.3390/ma7053735

Method of joining together dissimilar metal members
patent-application, February 2008

Kumagai, Masaki; Tanaka, Koji
US Patent Application 11/499322; 20080029581
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080029581

Method of Making Magnetically Aniso-Tropic Permanent Magnets
patent, March 1969

Naastepad, Pieter Aarat
US Patent Document 3,432,369
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3432369

Thermomagnetically patterned magnets and method of making same
patent, February 1994

Bradley, John R.; Perry, Thomas A.; Schroeder, Thaddeus
US Patent Document 5,283,130
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5283130

Friction Point Joining Device and Friction Point Joining Method
patent-application, June 2016

Kikyo, Chiaki
US Patent Application 14/976,394; 2016/0184922 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160184922

Friction Stir Additive Processing and Methods Thereof
patent-application, October 2017

Miles, Michael P.; Nelson, Tracy W.
US Patent Application 15/493086; 20170304933
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170304933

Light weight materials for automotive applications
journal, July 1995

Cole, G. S.; Sherman, A. M.
Materials Characterization, Vol. 35, Issue 1
https://doi.org/10.1016/1044-5803(95)00063-1

Similar Records in DOE Patents and OSTI.GOV collections:

Method for forming hollow profile non-circular extrusions using shear assisted processing and extrusion (ShAPE)

Patent Joshi, Vineet V.; Whalen, Scott A.; Lavender, Curt A.; ...

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies,more » « less
Full Text Available
Method for Forming Hollow Profile Non-Circular Extrusions Using Shear Assisted Processing and Extrusion (ShAPE)

Patent Joshi, Vineet V.; Whalen, Scott A.; Lavender, Curt A.; ...

A process for forming extruded products using a device having a scroll face configured to apply a rotational shearing force and an axial extrusion force to the same preselected location on material wherein a combination of the rotational shearing force and the axial extrusion force upon the same location cause a portion of the material to plasticize, flow and recombine in desired configurations. This process provides for a significant number of advantages and industrial applications, including but not limited to extruding tubes used for vehicle components with 50 to 100 percent greater ductility and energy absorption over conventional extrusion technologies,more » « less
Full Text Available
Shear assisted extrusion process

Patent Joshi, Vineet V.; Grant, Glenn J.; Lavender, Curt A.; ...

A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.
Full Text Available
Method for preparing metal powder, device for preparing metal powder, method for processing spent nuclear fuel

Patent Park, Jong-Hee [Clarendon Hills, IL]

A method for producing metal powder is provided the comprising supplying a molten bath containing a reducing agent, contacting a metal oxide with the molten bath for a time and at a temperature sufficient to reduce the metal in the metal oxide to elemental metal and produce free oxygen; and isolating the elemental metal from the molten bath.
Full Text Available
Extrusion processes for forming extrusions of a desired composition from a feedstock

Patent Whalen, Scott A.; Joshi, Vineet V.; Reza-E-Rabby, Md.; ...

Devices and methods for performing shear-assisted extrusion processes for forming extrusions of a desired composition from a feedstock material are provided. The processes can use a device having a scroll face having an inner diameter portion bounded by an outer diameter portion, and a member extending from the inner diameter portion beyond a surface of the outer diameter portion.Extrusion feedstocks and extrusion processes are provided for forming extrusions of a desired composition from a feedstock. The processes can include providing a feedstock having at least two different materials and engaging the materials with one another within a feedstock container.Methods formore » « less
Full Text Available

Similar Records

Title: Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets

Abstract

Citation Formats

Structure for joining members including a nut and an auxiliary member patent, August 2012

Systems and Methods for Joining Components patent-application, June 2016

Aluminum Alloy Extrudate Excellent In Bending Crush Resistance And Corrosion Resistance patent-application, July 2012

Hybrid disk-cone extrusion die assembly patent, October 2003

Friction Stir Extrusion of Nonweldable Materials for Downhole Tools patent-application, August 2017

Friction-Stir Extruders and Friction-Stir Extrusion Processes patent-application, March 2015

Joining Method patent-application, May 2017

High-Strength Aluminum Alloy Product And Method Of Producing The Same patent-application, March 2010

Mg-based alloy patent, November 2012

Friction Stir Welding System and Method patent-application, February 2008

Magnesium: Current and potential automotive applications journal, February 2002

Enhanced Friction-Stir-Welding Joint Strength Between Steel and Aluminum with Surface Coating and Preformed Local Texture patent-application, January 2017

Method for producing seamless hollow extruded products of aluminum alloy and die set therefor patent-application, March 2012

Method for manufacturing permanent magnets patent, January 1989

Tool Temperature and Process Modeling of Friction Stir Welding journal, January 2018

Method of making bonded or sintered permanent magnets patent, November 1995

A preliminary study on the feasibility of friction stir back extrusion journal, May 2012

Method and apparatus for extrusion of tubing sheeting and profile shapes patent, October 1995

Extrusion Press Systems And Methods patent-application, April 2014

Friction Stir Weld Tool and Method patent-application, December 2016

Friction Stir Welding Tool And Friction Stir Welding Method patent-application, March 2009

Joined body and process for manufacturing the same patent-application, November 2009

Metal Joining Method and Metal Joined Member patent-application, June 2017

Method of making magnets by polymer-coating magnetic powder patent, January 1976

Aluminium-steel lap joining by multipass friction stir welding journal, September 2016

Method of making magnets patent, July 1975

Friction stir welding tool having a counterflow pin configuration patent-application, October 2008

Friction stirring interlocking of dissimilar materials patent, August 2019

Different-Material Joining Structure patent-application, December 2018

Method of making magnets patent, August 1976

Friction-Stir Joining Method patent-application, March 2014

Friction Stir Welding Method and Joined Body patent-application, August 2017

Apparatus for Extruding Cylindrical Magnets patent, February 1972

High ductility aluminum alloy made from powder by friction extrusion journal, June 2019

Compositions and methods for dissimilar material welding patent, April 2014

Extrusion Die for Forming Hollow Material patent-application, August 2016

Induction Motor Rotor and a Method of Manufacturing the Same patent-application, June 2017

Fabrication of High Performance Magnesium/Carbon-Fiber/PEEK Laminated Composites journal, January 2003

Apparatus for ultrasonically assisted melt extrusion of fibers patent, March 2000

Welded component patent, January 2008

Forming metallic composite materials by urging base materials together under shear patent, November 1993

Intermetallic compounds in Al 6016/IF-steel friction stir spot welds journal, June 2010

Method of plastic forming of materials patent, April 1998

Friction Spot Welding and Friction Seam Welding patent-application, December 2015

Friction Stir Welding Tool and Process For Welding Dissimilar Materials patent-application, December 2011

Microstructure and mechanical properties of equimolar FeCoCrNi high entropy alloy prepared via powder extrusion journal, August 2016

Aluminium powder metallurgy technology for high-strength applications journal, June 1981

Anisotropic nanocomposite rare earth permanent magnets and method of making patent-application, January 2006

Aluminum alloy products and methods of preparation patent, November 1976

Method of friction stir welding dissimilar metals and workpiece assemblies formed thereby patent-application, May 2011

Method for Low-Temperature Joining of Metal Materials, and Joint Structure patent-application, July 2021

Equal-Channel Angular Extrusion of a Low-Density High-Entropy Alloy Produced by High-Energy Cryogenic Mechanical Alloying journal, September 2014

Densification of Thermal Spray Coatings patent-application, December 2004

Method for Forming Hollow Profile Non-circular Extrusions Using Shear Assisted Processing and Extrusion (Shape) patent-application, November 2018

Method for Operating Double-Action Friction Stir Welding Device, and Double-Action Friction Stir Welding Device patent-application, March 2021

Joining of polymers and polymer-metal hybrid structures: Recent developments and trends journal, August 2009

Extrusion of a Metal Alloy Containing Copper and Zinc patent-application, August 2008

Controlled Speed Friction Stir Tool Probe Bodies Having Non-Linear, Continuous, Monotonically-Decreasing Curved Axial Profiles and Integrated Surface Features patent-application, January 2016

Tool, apparatus, and method for welding workpieces patent, January 2008

Shear-extrusion method patent, August 2006

Method of Making Permanent Magnets patent, May 1972

Method of Joining Metallic Materials patent-application, March 2004

Method and apparatus for extruding powdered material patent, August 1995

In-Situ Interlocking of Metals Using Additive Friction Stir Processing patent-application, June 2016

Joining of dissimilar materials journal, January 2015

Solid State Joining Using Additive Friction Stir Processing patent-application, June 2016

Friction stir welding tool having a scroll-free concentric region patent, September 2011

Tapered extrusion die and method of forming the same patent, September 1981

Method of Bonding Dissimilar Metal Materials and Bonded Body of Dissimilar Metal Materials patent-application, March 2012

Method and apparatus for forming elongated articles having reduced diameter cross-sections patent, November 1981

Nanocomposite Permanent Magnets And Methods Of Making The Same patent-application, January 2014

Magnets with varying magnetization direction and method of making such magnets patent, September 2005

Numerical studies on effect of axial pressure in friction stir welding journal, April 2007

High energy ball milling method for making rare earth-transition metal-boron permanent magnets patent, October 1988

Top Nd-Fe-B magnets with greater than 56 MGOe energy density and 9.8 kOe coercivity journal, September 2002

Forming of materials patent, May 1975

Method of making self-aligning anisotropic powder for magnets patent, June 1991

Structure for joining members including a nut and an auxiliary member
patent, August 2012

Systems and Methods for Joining Components
patent-application, June 2016

Aluminum Alloy Extrudate Excellent In Bending Crush Resistance And Corrosion Resistance
patent-application, July 2012

Hybrid disk-cone extrusion die assembly
patent, October 2003

Friction Stir Extrusion of Nonweldable Materials for Downhole Tools
patent-application, August 2017

Friction-Stir Extruders and Friction-Stir Extrusion Processes
patent-application, March 2015

Joining Method
patent-application, May 2017

High-Strength Aluminum Alloy Product And Method Of Producing The Same
patent-application, March 2010

Mg-based alloy
patent, November 2012

Friction Stir Welding System and Method
patent-application, February 2008

Magnesium: Current and potential automotive applications
journal, February 2002

Enhanced Friction-Stir-Welding Joint Strength Between Steel and Aluminum with Surface Coating and Preformed Local Texture
patent-application, January 2017

Method for producing seamless hollow extruded products of aluminum alloy and die set therefor
patent-application, March 2012

Method for manufacturing permanent magnets
patent, January 1989

Tool Temperature and Process Modeling of Friction Stir Welding
journal, January 2018

Method of making bonded or sintered permanent magnets
patent, November 1995

A preliminary study on the feasibility of friction stir back extrusion
journal, May 2012

Method and apparatus for extrusion of tubing sheeting and profile shapes
patent, October 1995

Extrusion Press Systems And Methods
patent-application, April 2014

Friction Stir Weld Tool and Method
patent-application, December 2016

Friction Stir Welding Tool And Friction Stir Welding Method
patent-application, March 2009

Joined body and process for manufacturing the same
patent-application, November 2009

Metal Joining Method and Metal Joined Member
patent-application, June 2017

Method of making magnets by polymer-coating magnetic powder
patent, January 1976

Aluminium-steel lap joining by multipass friction stir welding
journal, September 2016

Method of making magnets
patent, July 1975

Friction stir welding tool having a counterflow pin configuration
patent-application, October 2008

Friction stirring interlocking of dissimilar materials
patent, August 2019

Different-Material Joining Structure
patent-application, December 2018

Method of making magnets
patent, August 1976

Friction-Stir Joining Method
patent-application, March 2014

Friction Stir Welding Method and Joined Body
patent-application, August 2017

Apparatus for Extruding Cylindrical Magnets
patent, February 1972

High ductility aluminum alloy made from powder by friction extrusion
journal, June 2019

Compositions and methods for dissimilar material welding
patent, April 2014

Extrusion Die for Forming Hollow Material
patent-application, August 2016

Induction Motor Rotor and a Method of Manufacturing the Same
patent-application, June 2017

Fabrication of High Performance Magnesium/Carbon-Fiber/PEEK Laminated Composites
journal, January 2003

Apparatus for ultrasonically assisted melt extrusion of fibers
patent, March 2000

Welded component
patent, January 2008

Forming metallic composite materials by urging base materials together under shear
patent, November 1993

Intermetallic compounds in Al 6016/IF-steel friction stir spot welds
journal, June 2010

Method of plastic forming of materials
patent, April 1998

Friction Spot Welding and Friction Seam Welding
patent-application, December 2015

Friction Stir Welding Tool and Process For Welding Dissimilar Materials
patent-application, December 2011

Microstructure and mechanical properties of equimolar FeCoCrNi high entropy alloy prepared via powder extrusion
journal, August 2016

Aluminium powder metallurgy technology for high-strength applications
journal, June 1981

Anisotropic nanocomposite rare earth permanent magnets and method of making
patent-application, January 2006

Aluminum alloy products and methods of preparation
patent, November 1976

Method of friction stir welding dissimilar metals and workpiece assemblies formed thereby
patent-application, May 2011

Method for Low-Temperature Joining of Metal Materials, and Joint Structure
patent-application, July 2021

Equal-Channel Angular Extrusion of a Low-Density High-Entropy Alloy Produced by High-Energy Cryogenic Mechanical Alloying
journal, September 2014

Densification of Thermal Spray Coatings
patent-application, December 2004

Method for Forming Hollow Profile Non-circular Extrusions Using Shear Assisted Processing and Extrusion (Shape)
patent-application, November 2018

Method for Operating Double-Action Friction Stir Welding Device, and Double-Action Friction Stir Welding Device
patent-application, March 2021

Joining of polymers and polymer-metal hybrid structures: Recent developments and trends
journal, August 2009

Extrusion of a Metal Alloy Containing Copper and Zinc
patent-application, August 2008

Controlled Speed Friction Stir Tool Probe Bodies Having Non-Linear, Continuous, Monotonically-Decreasing Curved Axial Profiles and Integrated Surface Features
patent-application, January 2016

Tool, apparatus, and method for welding workpieces
patent, January 2008

Shear-extrusion method
patent, August 2006

Method of Making Permanent Magnets
patent, May 1972

Method of Joining Metallic Materials
patent-application, March 2004

Method and apparatus for extruding powdered material
patent, August 1995

In-Situ Interlocking of Metals Using Additive Friction Stir Processing
patent-application, June 2016

Joining of dissimilar materials
journal, January 2015

Solid State Joining Using Additive Friction Stir Processing
patent-application, June 2016

Friction stir welding tool having a scroll-free concentric region
patent, September 2011

Tapered extrusion die and method of forming the same
patent, September 1981

Method of Bonding Dissimilar Metal Materials and Bonded Body of Dissimilar Metal Materials
patent-application, March 2012

Method and apparatus for forming elongated articles having reduced diameter cross-sections
patent, November 1981

Nanocomposite Permanent Magnets And Methods Of Making The Same
patent-application, January 2014

Magnets with varying magnetization direction and method of making such magnets
patent, September 2005

Numerical studies on effect of axial pressure in friction stir welding
journal, April 2007

High energy ball milling method for making rare earth-transition metal-boron permanent magnets
patent, October 1988

Top Nd-Fe-B magnets with greater than 56 MGOe energy density and 9.8 kOe coercivity
journal, September 2002

Forming of materials
patent, May 1975

Method of making self-aligning anisotropic powder for magnets
patent, June 1991

Friction Stir Welding of Dissimilar Metals
patent-application, April 2010

Extrusion Die Device
patent-application, June 2010

Method of Welding Dissimilar Metal Materials and Welded Body of Dissimilar Metal Materials
patent-application, October 2012