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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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62.发明授权公开(公告)号：US11440134B2
公开(公告)日：2022-09-13
申请号：US16448482
申请日：2019-06-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Dale A. Gerard , Adam G. Kotlarek
Abstract: A component, which may be an automotive chassis structure, includes first and second sub-part main bodies. The first sub-part main body is formed of a first material, and the second sub-part main body is formed of a second material. The first material is a steel alloy, and the second material is aluminum or an aluminum alloy. A transition layer is attached to and contacts the first sub-part main body. The transition layer is formed of a third material, where the third material contains at least a majority of copper. A mixed layer is disposed between the transition layer and the second sub-part main body, and the mixed layer is formed of a mixture of the second material and the third material. A disclosed method includes forming the component by friction stir welding the transition layer to the second sub-part main body.
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公开(公告)号：US11326680B2
公开(公告)日：2022-05-10
申请号：US16655412
申请日：2019-10-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Cheonjae Bahk , Pete R. Garcia , Daniel J. Wilson
IPC: F16H48/40 , C22C14/00 , C22C38/48 , C22C38/46 , C22C38/44 , B23K11/26 , B23K11/11 , B23K11/20 , C22C38/04 , B23K103/24 , F16H48/38
Abstract: A method of joining parts, where at least one of the parts has a faying surface defining grooves therein. One of the parts is formed of a majority of titanium, and the other part is formed of a majority of iron. The method includes providing a set of opposed welding electrodes disposed on a side of each part and applying pressure to and heating the parts via the set of electrodes to form a joint between the parts. A bonded assembly includes a first part formed of a majority of titanium and a second part formed of a steel alloy. The first and second parts having a bond that includes a portion of the first part directly in contact with and attached to a portion of the second part. The parts may be a titanium-containing differential carrier case bonded to a steel gear.
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公开(公告)号：US11173568B2
公开(公告)日：2021-11-16
申请号：US16032880
申请日：2018-07-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Daniel J. Wilson , Huaxin Li , Jianghuai Yang , James D. Cremonesi , Qigui Wang
Abstract: A composite metal flexplate is disclosed that includes an aluminum center plate and a steel ring gear joined to the aluminum center plate by a solid-state joint. The solid-state joint that joins together the aluminum center plate and the steel ring gear may be formed by friction welding. During the friction welding process, a surface of an annular body of the steel ring gear is preheated, followed by bringing the preheated surface of the annular body into contact with a surface of a periphery of a circular body of the aluminum center plate. The two contacting surfaces are then caused to experience relative rotational contacting movement, which generates frictional heat therebetween and softens adjacent regions of the steel ring gear and the aluminum center plate. Once this occurs, an applied force is administered to compress and forge the contacting surfaces together, thereby establishing the solid-state joint.
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公开(公告)号：US20210331272A1
公开(公告)日：2021-10-28
申请号：US16860702
申请日：2020-04-28
Applicant: GM Global Technology Operations LLC
Inventor： Huaxin Li , Liang Wang , Stephen R. McKenny , Daniel J. Wilson
IPC: B23K26/035 , B23K26/06 , B23K26/062 , B23K26/08 , B23K26/12 , B23K26/60
Abstract: Angled, single laser weld and a method of forming an angled, single laser weld including arranging a first and second faying surfaces of a first and second component adjacently to form an interface between the components; irradiating at least one of the first and second components at the interface with a laser, wherein the first faying surface defines a plane formed at an angle alpha in the range of +1-5 degrees to 60 degrees from an axis A perpendicular to the first front surface and the second faying surface matches the first faying surface; and forming a junction at the interface with an hourglass shaped weld.
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Patent Agency Ranking
公开(公告)号：US20200016688A1
公开(公告)日：2020-01-16
申请号：US16032880
申请日：2018-07-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Daniel J. Wilson , Huaxin Li , Jianghuai Yang , James D. Cremonesi , Qigui Wang
Abstract: A composite metal flexplate is disclosed that includes an aluminum center plate and a steel ring gear joined to the aluminum center plate by a solid-state joint. The solid-state joint that joins together the aluminum center plate and the steel ring gear may be formed by friction welding. During the friction welding process, a surface of an annular body of the steel ring gear is preheated, followed by bringing the preheated surface of the annular body into contact with a surface of a periphery of a circular body of the aluminum center plate. The two contacting surfaces are then caused to experience relative rotational contacting movement, which generates frictional heat therebetween and softens adjacent regions of the steel ring gear and the aluminum center plate. Once this occurs, an applied force is administered to compress and forge the contacting surfaces together, thereby establishing the solid-state joint.
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公开(公告)号：US20190337088A1
公开(公告)日：2019-11-07
申请号：US15971031
申请日：2018-05-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Daniel J. Wilson
IPC: B23K20/12
Abstract: A method for welding a first component to a second component. The method includes providing a first component including a first alloy, providing a second component including a second alloy, heating the first component, and solid state welding the second component to the first component.
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公开(公告)号：US20190193207A1
公开(公告)日：2019-06-27
申请号：US15849784
申请日：2017-12-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： John M. Kremer , Huaxin Li
IPC: B23K26/364 , F16D13/64
CPC classification number: B23K26/364 , B23K2103/172 , F16D13/648 , F16D13/72 , F16D13/74 , F16D2069/004 , F16D2069/0466 , F16D2250/0023 , F16D2250/003 , F16D2250/0046
Abstract: A friction clutch assembly for an automatic transmission, a friction clutch plate, and a method of forming a friction clutch plate are provided. The method includes providing a friction material layer for a face of the friction clutch plate and cutting the friction material layer with a laser beam to form a plurality of grooves within the friction material layer. In one version, a friction plate for the friction clutch assembly includes an annular core plate having first and second opposed faces and defining an outer edge and an inner edge. Friction material is affixed to at least one of the first and second opposed faces. The friction material defines a plurality of grooves within the friction material, each groove being bordered by friction material having a ridge. The cross-section of the ridge has a corner having a radius of curvature that is less than 300 microns.
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公开(公告)号：US20190151983A1
公开(公告)日：2019-05-23
申请号：US15817605
申请日：2017-11-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Qigui Wang , Daniel J. Wilson
IPC: B23K20/24 , B23K20/10 , B23K35/28 , B23K26/362
Abstract: A method for simultaneous ultrasonic welding/brazing of a first metallic alloy workpiece over a second metallic alloy workpiece includes creating depressions in a joining surface of a first metallic alloy workpiece, and applying a coating material to at least one of the joining surface of the first metallic alloy workpiece or a joining surface of a second metallic alloy workpiece. Next, contaminates are removed from the joining surfaces of the first metallic alloy workpiece and the second metallic alloy workpiece, and the workpieces are joined using ultrasonic vibration to create a welded and brazed joint.
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公开(公告)号：US20190054556A1
公开(公告)日：2019-02-21
申请号：US15677045
申请日：2017-08-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Jianghuai Yang , Dale A. Gerard , Daniel J. Wilson
Abstract: A method for bonding a cylinder liner within a cylinder bore of a vehicle engine block includes providing a bonding substrate on one of an outside surface of the cylinder liner and an inside surface of a cylinder bore in the engine block, positioning the cylinder liner in the cylinder bore, and heating the cylinder liner.
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