公开(公告)号：US20230234159A1

公开(公告)日：2023-07-27

申请号：US17581087

申请日：2022-01-21

Applicant: GM Global Technology Operations LLC

Inventor： Zhenke Teng ,  Andrew Clay Bobel ,  Jason M. Brown ,  Thomas R. Jones ,  Michael J. Karagoulis

IPC: B23K11/11 ,  B32B15/01 ,  C22C38/16 ,  C22C38/04 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00 ,  B23K11/16

CPC classification number: B23K11/115 ,  B32B15/013 ,  C22C38/16 ,  C22C38/04 ,  C22C38/06 ,  C22C38/02 ,  C22C38/002 ,  C22C38/001 ,  B23K11/166 ,  B23K2101/18

Abstract: A steel workpiece includes an alloy substrate comprising iron, about 1.4 to about 2.0 weight percent aluminum, and about 0 to about 1.0 weight percent silicon. The steel workpiece further includes a coating comprising zinc. A method of spot welding a workpiece stack-up that includes a pair of the steel workpieces includes providing the stack-up, contacting first and second electrodes to the steel workpieces, passing an electrical current through the stack-up, forming a weld nugget from molten mixing of the alloy substrates of the pair of steel workpieces, forming a boundary layer between the coating and the alloy substrate from dispersion of the coating into the alloy substrate and reaction of the zinc with the aluminum and the silicon to prevent molten mixing of the coating within the alloy substrate, and ceasing passage of the electrical current.

公开(公告)号：US20220195207A1

公开(公告)日：2022-06-23

申请号：US17127209

申请日：2020-12-18

Applicant: GM Global Technology Operations LLC

Inventor： Zhenke Teng ,  Jason M. Brown ,  Thomas R, Jones ,  Pei-chung Wang ,  Michael J. Karagoulis

IPC: C09D5/10 ,  C25D3/44 ,  C25D3/22 ,  C23C2/12 ,  C23C2/06 ,  B23K35/22

Abstract: A high temperature substrate coating to mitigate liquid metal embrittlement (LME) cracking in automobile vehicles includes a substrate. A coating is disposed on the substrate, the coating being one of a zinc-based material and an aluminum-based material, with the coating having a melting point of at least 500° C.

公开(公告)号：US20200238430A1

公开(公告)日：2020-07-30

申请号：US16260431

申请日：2019-01-29

Applicant: GM Global Technology Operations LLC

Inventor： Michael J. Karagoulis ,  Zhenke Teng ,  Joseph Seme

IPC: B23K11/30 ,  B23B5/16 ,  B23K11/31

Abstract: A tip dresser cutter including a circumferential portion having a circular shape rotatable about an axis of rotation, a center portion located radially inward from the circumferential portion proximate the axis of rotation, and a cutting flute extending radially between the center portion and the circumferential portion. The cutting flute including a leading edge, a trailing edge, a radially inward canted surface extending between the leading edge and the trailing edge. The radially inward canted surface includes a first section extending between the center portion and a first location on the cutting flute and a second section extending between the first location on the cutting flute and a second location on the cutting flute. The second section of the radially inward canted surface including a curved portion that is parallel to a plane of rotation of the cutting flute.

公开(公告)号：US12290871B2

公开(公告)日：2025-05-06

申请号：US17987913

申请日：2022-11-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Steven Cipriano ,  Pei-chung Wang ,  Zhenke Teng ,  Anthony V. Minatel

IPC: B23K11/20 ,  B23K11/11 ,  B23K35/36 ,  B23K37/00 ,  B23K103/04 ,  B23K103/10

Abstract: Methods and systems for joining multiple workpieces are provided. In one example, the method includes dispensing adhesive on a first workpiece. A second workpiece is contacted with the adhesive such that the adhesive is disposed between the first and second workpieces. Resistance heating is produced in the first and second workpieces at first processing conditions to partially cure the adhesive and affix the first and second workpieces together to form a partially cured, adhesive-joined workpiece assembly. The partially cured, adhesive-joined workpiece assembly is exposed to heat at second processing conditions to substantially fully cure the adhesive.

公开(公告)号：US11952639B1

公开(公告)日：2024-04-09

申请号：US18145938

申请日：2022-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Steven Cipriano ,  Pei-chung Wang ,  Zhenke Teng

IPC: C21D1/40 ,  B21J15/02 ,  B21J15/08 ,  B23K11/16 ,  C21D6/00 ,  C21D11/00 ,  B23K103/04

CPC classification number: C21D11/00 ,  B21J15/08 ,  B23K11/16 ,  C21D1/40 ,  C21D6/00 ,  B21J15/025 ,  B23K2103/04

Abstract: A method for tempering steel for riveting includes positioning a first component having a first composition over a second component having a second composition, and resistance spot welding the first component to the second component using a resistance spot weld gun to form a spot weld. The method includes tempering at least one of the first component, the second component and the spot weld with the resistance spot weld gun, and coupling a third component having a third composition to the first component and the second component with a rivet, and the third composition is different than the first composition and the second composition.

公开(公告)号：US20230373024A1

公开(公告)日：2023-11-23

申请号：US17663928

申请日：2022-05-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhenke Teng ,  Tingting Zhang ,  Andrew C. Bobel ,  Jason M. Brown

IPC: B23K11/18 ,  B23K11/11 ,  B23K11/16

CPC classification number: B23K11/185 ,  B23K11/115 ,  B23K11/163 ,  B23K2103/10

Abstract: Methods for resistance welding, resistance-welded assemblies, and vehicles including resistance-welded assemblies are provided. The method includes providing a workpiece stack-up including first and second workpieces and an intermediate material located between the faying surfaces thereof. At least one of the first workpiece and the second workpiece is formed of a first metal alloy with a first concentration of an alloying element, and the intermediate material is formed of a second metal alloy of the first metal and a second concentration of the alloying element that is less than the first concentration. The method includes bringing electrodes into contact with the workpieces, passing an electrical current therebetween to form a molten weld pool, and cooling the molten weld pool into a weld nugget that forms all or part of a weld joint between the workpieces and has a composition that is a mixture of the workpieces and the intermediate material.

公开(公告)号：US11548091B2

公开(公告)日：2023-01-10

申请号：US16598474

申请日：2019-10-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pei-chung Wang ,  Michael J. Karagoulis ,  Spyros P. Mellas ,  Zhenke Teng

IPC: B23K11/16 ,  B23K11/11 ,  B23K11/20 ,  B23K103/20

Abstract: A method of forming an assembly includes providing a metallic first workpiece having base and a first layer disposed on the base and adhering a second layer onto the first layer. One of the first and second layers is formed of a zinc-based material formed of at least a majority of zinc, and the other of the first and second layers is formed of a metallic alloying material having a melting point higher than the melting point of the zinc-based material. Preferably, the first layer is formed of the zinc-based material, and the second layer is formed of the metallic alloying material with the higher melting point. A metallic second workpiece is disposed in contact with the second layer. A welding operation is performed to join the first workpiece to the second workpiece. A welded assembly is also provided.

公开(公告)号：US11441039B2

公开(公告)日：2022-09-13

申请号：US17127209

申请日：2020-12-18

Applicant: GM Global Technology Operations LLC

Inventor： Zhenke Teng ,  Jason M. Brown ,  Thomas R. Jones ,  Pei-chung Wang ,  Michael J. Karagoulis

IPC: C23C2/12 ,  C09D5/10 ,  C25D3/44 ,  B23K35/22 ,  C23C2/06 ,  C25D3/22 ,  C25D21/00 ,  C25D21/12

Abstract: A high temperature substrate coating to mitigate liquid metal embrittlement (LME) cracking in automobile vehicles includes a substrate. A coating is disposed on the substrate, the coating being one of a zinc-based material and an aluminum-based material, with the coating having a melting point of at least 500° C.

公开(公告)号：US11318548B2

公开(公告)日：2022-05-03

申请号：US15952645

申请日：2018-04-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pei-chung Wang ,  Michael J. Karagoulis ,  Zhenke Teng

IPC: B23K1/00 ,  B23K11/31 ,  B23K11/11

Abstract: A method of resistance spot brazing a workpiece stack-up that includes a first thin-gauge steel workpiece and a second thin-gauge steel workpiece. The method includes several steps. A first step involves applying a filler material to a surface of the first thin-gauge steel workpiece. A second step involves bringing a surface of the second thin-gauge steel workpiece to adjoin the filler material. A third step involves clamping a first welding electrode and a second welding electrode on the first and second thin-gauge steel workpieces and over the filler material. A fourth step involves passing electrical current between the first and second welding electrodes and hence through the filler material. And a fifth step involves terminating passage of the electrical current in order to establish a brazed joint between the first and second thin-gauge steel workpieces.

公开(公告)号：US20190314915A1

公开(公告)日：2019-10-17

申请号：US15952813

申请日：2018-04-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pei-chung Wang ,  Michael J. Karagoulis ,  Zhenke Teng ,  Spyros P. Mellas

IPC: B23K1/00 ,  B23K11/11 ,  B23K11/16 ,  B23K11/31

Abstract: A method of resistance spot welding a workpiece stack-up that includes a first steel workpiece and a second steel workpiece. The method includes several steps. The first steel workpiece can have a first surface coating. One step involves applying a filler metal to a surface of the first steel workpiece. Another step involves bringing a surface of the second steel workpiece to adjoin the filler metal. Yet another step involves clamping a first welding electrode and a second welding electrode on the first and second steel workpieces. And another step involves passing electrical current between the first and second welding electrodes and hence through the filler metal. And yet another step involves terminating passage of the electrical current in order to establish a weld joint between the first and second steel workpieces.