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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
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.
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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
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.
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公开(公告)号：US20230226636A1
公开(公告)日：2023-07-20
申请号：US17648040
申请日：2022-01-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhenke Teng , Pei-chung Wang , Jason M. Brown
CPC classification number: B23K11/115 , F16B5/08
Abstract: Methods for resistance welding, resistance-welded assemblies, and vehicles including resistance-welded assemblies are provided. An exemplary resistance welding method includes compressing a workpiece stack-up with an interface material between first and second workpieces to squeeze a portion of the interface material to a reduced thickness. After compressing the workpiece stack-up, the first welding electrode contacts the first workpiece at an operating contact area between the first welding electrode and the first workpiece that is greater than an initial contact area. The method also includes passing an electrical current between the welding electrodes to form a molten weld pool within the workpieces, and ceasing the passing of the electrical current between the welding electrodes to allow the molten weld pool to solidify into a weld nugget that forms all or part of a weld joint between the workpieces.
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Patent Agency Ranking
公开(公告)号：US20240033844A1
公开(公告)日：2024-02-01
申请号：US17814869
申请日：2022-07-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhenke Teng , John A. Gerke , Pei-chung Wang , Robert W. Watson , Russell A. Webster , Jason M. Brown
CPC classification number: B23K11/3054 , B23K11/115 , B23K11/24 , B23K2101/006
Abstract: Welding electrodes, methods, and vehicles are provided. The welding electrodes include a body that includes a weld face on a distal end of the body configured to contact a workpiece and apply an electrical current thereto. The body has a maximum diameter of 13 millimeters or less. The welding electrode includes an insulative material covering at least a portion of the body, the insulative material configured to mitigate current shunting upon contact between the insulative material and a workpiece of a workpiece stack-up while using the welding electrode to resistance weld the workpiece stack-up.
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公开(公告)号：US20230390857A1
公开(公告)日：2023-12-07
申请号：US17805097
申请日：2022-06-02
Inventor： Zhenke Teng , Robert Watson , Russell A. Webster, JR. , Jason M. Brown , Joseph Seme
CPC classification number: B23K11/3063 , B23B5/166 , B23B1/00 , B23B2210/00
Abstract: A system for electrode dressing including a cutter with a rim and a center land supported on the rim by a number of flutes defining openings between the flutes. The flutes and the center land define a cutting profile of the cutter. The cutter is configured to rotate about an axis passing through the center land. Cutting edges are disposed on the flutes and are made of a first material having a Vickers hardness (HV) of at least 850 HV, overlaid by a second material having a Vickers hardness of at least 3200 HV. The cutter profile comprises a face cutting profile extending radially outward from the axis that is disposed at an angle of less than six-degrees relative to a radial normal of the cutter.
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6.发明授权公开(公告)号：US11752566B2
公开(公告)日：2023-09-12
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: C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , B23K11/11 , B32B15/01 , B23K11/16 , B23K101/00 , B23K101/18
CPC classification number: B23K11/115 , B23K11/166 , B32B15/013 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , B23K2101/006 , 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.
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7.发明公开公开(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
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.
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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
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.
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