公开(公告)号：US20250096368A1

公开(公告)日：2025-03-20

申请号：US18470813

申请日：2023-09-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lu HUANG ,  Blair E. Carlson ,  Charles W. Wampler, II ,  Jing Gao ,  Brian J. Koch ,  Margaux Elise LeBlanc ,  Jeffrey A. Abell

IPC: H01M50/103 ,  H01M50/107 ,  H01M50/133 ,  H01M50/134 ,  H01M50/136

Abstract: An enclosure for a prismatic battery cell include first side surfaces, second side surfaces connected between the first side surfaces, a top surface connected between the first side surfaces and the second side surfaces, and a bottom surface connected between the first side surfaces and the second side surfaces. The first side surfaces, the second side surfaces, the top surface and the bottom surface are configured to receive a battery cell stack. The second side surfaces, the top surface and the bottom surface expand/contract to allow guided expansion/contraction of the enclosure in a first direction while limiting expansion in second and third directions transverse to the first direction.

公开(公告)号：US11358330B2

公开(公告)日：2022-06-14

申请号：US16355062

申请日：2019-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Blair E. Carlson ,  Ryan Gergely ,  David A. Okonski ,  William R. Rodgers ,  James W. Wells

IPC: B29C64/209 ,  B29C64/118 ,  B29C64/295 ,  B29C64/336 ,  B29L31/30 ,  B33Y10/00 ,  B33Y30/00

Abstract: A fused filament deposition head is employed for depositing filament materials on workpieces to join the workpieces together. The workpieces can be of an automotive application, aerospace application, or something else. The fused filament deposition head, in an example, has a feed end, a dispensing end, and a heater. The feed end introduces more than one filament in the fused filament deposition head, as demanded in the larger application. The dispensing end delivers materials of the filaments to the underlying workpieces. The materials are delivered together. The heater serves to heat the filaments as they travel through the fused filament deposition head. The filaments can include a filament having a core portion of liquid-crystal polymer material.

公开(公告)号：US10857619B2

公开(公告)日：2020-12-08

申请号：US15485996

申请日：2017-04-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Tyson W. Brown ,  David R. Sigler ,  Blair E. Carlson ,  Amberlee S. Haselhuhn

IPC: B23K11/20 ,  B23K11/11 ,  B23K11/16 ,  B23K11/18 ,  B23K35/00 ,  B23K35/02 ,  B23K35/30 ,  B23K35/36 ,  C22C38/02 ,  C22C38/04 ,  C22C38/16 ,  B23K103/04 ,  B23K103/10 ,  B23K103/20 ,  B23K101/00 ,  B23K101/34 ,  B23K101/18

Abstract: A method of resistance spot welding a workpiece stack-up that includes an aluminum workpiece and an overlapping adjacent steel workpiece so as to minimize the thickness of an intermetallic layer comprising Fe—Al intermetallic compounds involves providing reaction-slowing elements at the faying interface of the aluminum and steel workpieces. The reaction-slowing elements may include at least one of carbon, copper, silicon, nickel, manganese, cobalt, or chromium. Various ways are available for making the one or more reaction-slowing elements available at the faying interface of the aluminum and steel workpieces including being dissolved in a high strength steel or being present in an interlayer that may take on a variety of forms including a rigid shim, a flexible foil, a deposited layer adhered to and metallurgically bonded with a faying surface of the steel workpiece, or an interadjacent organic material layer that includes particles containing the reaction-slowing elements.

公开(公告)号：US10682723B2

公开(公告)日：2020-06-16

申请号：US15097821

申请日：2016-04-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David R. Sigler ,  Blair E. Carlson ,  James G. Schroth ,  David S. Yang ,  Anil K. Sachdev

IPC: B23K11/20 ,  B23K11/11 ,  B23K11/30 ,  B23K103/20

Abstract: A method of resistance spot welding a steel workpiece and an aluminum or aluminum alloy workpiece, and a welding electrode used therein. In one step of the method a workpiece stack-up is provided. The workpiece stack-up includes a steel workpiece and an aluminum or aluminum alloy workpiece. Another step of the method involves contacting the aluminum or aluminum alloy workpiece with a weld face of the welding electrode. The welding electrode has a body and an insert. The insert is composed of a material having an electrical resistivity that is greater than an electrical resistivity of the material of the body. The weld face has a first section defined by a surface of the insert and has a second section defined by a surface of the body. Both the first and second sections make surface-to-surface contact with the aluminum or aluminum alloy workpiece amid resistance spot welding.

公开(公告)号：US10675712B2

公开(公告)日：2020-06-09

申请号：US15568851

申请日：2015-04-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  SHANGHAI JIAO TONG UNIVERSITY

Inventor： Hui-Ping Wang ,  Michael G. Poss ,  Blair E. Carlson ,  Fenggui Lu ,  Haichao Cui

IPC: B23K26/00 ,  B23K9/00 ,  B23K26/244 ,  B23K26/26 ,  B23K37/04 ,  B23K26/08 ,  B23K26/32 ,  B23K101/18 ,  B23K103/10

Abstract: A method of laser welding a workpiece stack-up that includes two or three overlapping aluminum alloy workpieces involves constraining a free end of an overlapping portion of a first aluminum alloy workpiece against movement away from an underlying second aluminum alloy workpiece to counteract the thermally-induced forces that cause out-of-plane deformation of one or more of the aluminum alloy workpieces during laser welding. Such constraint of the free end of the first aluminum alloy workpiece may be accomplished by clamping, spot welding, or any other suitable practice. By constraining the free end of the first aluminum alloy workpiece, and thus inhibiting out-of-plane deformation of the aluminum alloy workpieces when laser welding is practiced in a nearby welding region, the occurrence of hot cracking is minimized or altogether eliminated in the final laser weld joint.

公开(公告)号：US10471508B2

公开(公告)日：2019-11-12

申请号：US15471868

申请日：2017-03-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. Perry ,  Blair E. Carlson ,  Jason J. Nolte ,  Hyungmin Chae ,  John Patrick Spicer

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/082 ,  B23K26/067 ,  B23K26/06 ,  B23K26/70 ,  B29C64/153 ,  B29C64/386 ,  B29C64/35 ,  B29K105/00

Abstract: Additive manufacturing systems, area scanning laser systems, and methods for performing an additive manufacturing process are provided. An exemplary additive manufacturing system includes a laser generation device for producing a laser beam. Further, the additive manufacturing system includes an optic element for forming a first portion of the laser beam with a first polarization and a second portion of the laser beam with a second polarization different from the first polarization to encode an image in the laser beam. Also, the additive manufacturing system includes a selective beam separator configured to direct the first portion of the laser beam onto a material to be sintered or melted. The additive manufacturing system includes a recycling system for receiving the second portion of the laser beam.

公开(公告)号：US10357941B2

公开(公告)日：2019-07-23

申请号：US15302852

申请日：2014-07-28

Applicant: GM Global Technology Operations LLC

Inventor： Yongqiang Li ,  Blair E. Carlson ,  Xin Yang ,  Jianfeng Wang

IPC: B23K31/02 ,  B32B7/12 ,  H05K3/36 ,  B32B27/08 ,  B32B27/32 ,  B32B27/36 ,  B32B3/26 ,  B32B37/06 ,  B32B37/12 ,  B23K1/00 ,  B23K1/20 ,  B23K35/02 ,  B32B5/02 ,  B32B15/08 ,  H05K3/32

Abstract: The present disclosure relates to a bonding system (100) comprising an adhesive (200), in contact with a first contact surface (115) and a second contact surface (125), and a solder mesh (310) positioned in the adhesive (200) in contact with the first contact surface (115). Also, the present disclosure relates to a bonding method to produce a solder-reinforced adhesive bond joining a first substrate (110) and a second substrate (120), comprising applying, on a first contact surface (115) of the first substrate (110), an adhesive (200), positioning, at least partially into the adhesive (200), a solder mesh (310), such that the solder mesh (310) contacts the first contact surface (115), connecting, to a portion of the adhesive (200) opposite the first contact surface (115), a second contact surface (125) of the second substrate (120), and applying heat to the first contact surface (115) such that at least one portion of the solder mesh (310) reaches a solder-bonding temperature.

公开(公告)号：US20190136401A1

公开(公告)日：2019-05-09

申请号：US15804948

申请日：2017-11-06

Applicant: GM Global Technology Operations LLC

Inventor： Surender Maddela ,  Blair E. Carlson

IPC: C25D13/22 ,  C25D13/02 ,  C25D13/04 ,  C25D13/20 ,  C09D5/44

Abstract: A method for forming an adhesion promoting layer and a corrosion resistant layer over the surfaces of a body-in-white (“BIW”) structure is provided. The method includes immersing the BIW structure in a pre-activating bath to pre-activate the surfaces of the BIW structure. The surfaces of the BIW structure comprise at least an aluminum alloy surface, at least a surface comprising ferrous metal, zinc, or TiZr, and the surfaces are substantially free of magnesium alloys. An adhesion promoting layer comprising cerium and a corrosion resistant layer comprising polymers are subsequently deposited over the pre-activated surfaces of the BIW structure by immersing the BIW structure in an aqueous bath comprising a source of cerium cations and a polymer precursor.

公开(公告)号：US20190076955A1

公开(公告)日：2019-03-14

申请号：US16181809

申请日：2018-11-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hui-ping Wang ,  David R. Sigler ,  Blair E. Carlson ,  Amberlee S. Haselhuhn ,  Michael J. Karagoulis

IPC: B23K11/30 ,  B23K11/11 ,  B23K11/20

Abstract: A welding electrode includes a weld face that has a convex base weld face surface and a plurality of ringed ridges that are radially spaced apart on the base weld face surface and surround a central weld face axis. The plurality of ringed ridges including an innermost ringed ridge and an outermost ringed ridge. The innermost ringed ridge is located closest to the central weld face axis and rises above a central portion of the base weld face surface, and the outermost ringed ridge is located farthest from the central weld face axis and rises above an outer peripheral portion of the base weld face surface. At least one of the plurality of ringed ridges is a discontinuous ringed ridge.

公开(公告)号：US10166627B2

公开(公告)日：2019-01-01

申请号：US14503969

申请日：2014-10-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David R. Sigler ,  James G. Schroth ,  Blair E. Carlson ,  Yelena Myasnikova ,  David Yang

IPC: B23K11/10 ,  B23K11/16 ,  B23K11/00 ,  B23K11/20 ,  B23K11/11 ,  B23K35/02

Abstract: A resistance spot welding method may involve spot welding a workpiece stack-up that includes a steel workpiece and an aluminum alloy workpiece that overlap one another to provide a faying interface. A pair of opposed welding electrodes are pressed against opposite sides of the workpiece stack-up with one welding electrode contacting the aluminum alloy workpiece and the other welding electrode contacting the steel workpiece. The welding electrodes are constructed so that, when an electrical current is passed between the electrodes and through the workpiece stack-up, the electrical current has a greater current density in the steel workpiece than in the aluminum alloy workpiece to thereby concentrate heat within a smaller zone in the steel workpiece. Concentrating heat within a smaller zone in the steel workpiece is believed to modify the solidification behavior of the resultant molten aluminum alloy weld pool in a desirable way.