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公开(公告)号：US20220355410A1
公开(公告)日：2022-11-10
申请号：US17307277
申请日：2021-05-04
Applicant: GM Global Technology Operations LLC
Inventor： Huaxin Li , MingFeng Shi , Jatinder Paul Singh , Dale A. Gerard
Abstract: A system for increasing joint strength and reducing embrittlement in a resistance spot weld of metal workpieces is disclosed. The system comprises a stackup of first and second metal workpieces, and an interface member disposed between the first and second metal workpieces. The interface member comprises a peripheral wall defining a hollow inner portion. The peripheral wall has a first open end extending to a second open end. The first open end is in contact with the first metal workpiece defining a first weld portion thereon. The second open end is in contact with the second metal workpiece defining a second weld portion thereon. The system further comprises a first electrode configured to contact the first metal workpiece to heat the peripheral wall at the first weld portion and join the first metal workpiece with the first open end of the peripheral wall. The system further comprises a second electrode configured to contact the second metal workpiece to heat the peripheral wall at the second weld portion and join the second metal workpiece with the second open end of the peripheral wall to define a weld joint. The system further comprises a power source configured to power the first and second electrodes and a controller configured to control the power to the first and second electrodes to heat the peripheral wall.
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2.发明公开公开(公告)号：US20240139875A1
公开(公告)日：2024-05-02
申请号：US18049660
申请日：2022-10-26
Applicant: GM Global Technology Operations LLC
Inventor： Jason J. Coryell , Mingfeng Shi , Sarah Tedesco , Jatinder Paul Singh
IPC: B23K26/24 , B21D28/26 , B23K26/322
CPC classification number: B23K26/24 , B21D28/26 , B23K26/322 , B23K2101/185
Abstract: A method of assembling a vehicle component, a system for assembling a vehicle component, and a vehicle component assembly. A blank is formed from a steel sheet, wherein the steel sheet includes a coating on a surface. The coating is removed from a first interface surface of the blank and the blank is stamped either prior to or after removing the coating. The first dynamic interface surface is arranged relative to a second interface surface and thermally joined to form a joint.
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公开(公告)号：US11794270B2
公开(公告)日：2023-10-24
申请号：US17307277
申请日：2021-05-04
Applicant: GM Global Technology Operations LLC
Inventor： Huaxin Li , MingFeng Shi , Jatinder Paul Singh , Dale A. Gerard
CPC classification number: B23K11/166 , B23K11/115 , B23K11/20 , B23K11/24 , B23K35/0255 , B23K35/3033 , C22C19/03 , B23K2103/04
Abstract: A system for increasing joint strength and reducing embrittlement in a resistance spot weld of metal workpieces is disclosed. The system comprises a stackup of first and second metal workpieces, and an interface member disposed between the first and second metal workpieces. The interface member comprises a peripheral wall defining a hollow inner portion. The peripheral wall has a first open end extending to a second open end. The first open end is in contact with the first metal workpiece defining a first weld portion thereon. The second open end is in contact with the second metal workpiece defining a second weld portion thereon. The system further comprises a first electrode configured to contact the first metal workpiece to heat the peripheral wall at the first weld portion and join the first metal workpiece with the first open end of the peripheral wall. The system further comprises a second electrode configured to contact the second metal workpiece to heat the peripheral wall at the second weld portion and join the second metal workpiece with the second open end of the peripheral wall to define a weld joint. The system further comprises a power source configured to power the first and second electrodes and a controller configured to control the power to the first and second electrodes to heat the peripheral wall.
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