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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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公开(公告)号：US20210115540A1
公开(公告)日：2021-04-22
申请号：US16657146
申请日：2019-10-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Dale A. Gerard , James D. Cremonesi , Daniel J. Wilson
Abstract: A nodular iron alloy and automotive components, such as a crankshaft, are provided. The nodular iron alloy may include iron, about 2.2-3.2 wt % carbon, about 1.7-2.3 wt % silicon, about 0.2-0.6 wt % manganese, a maximum of 0.03 wt % phosphorus, a maximum of 0.02 wt % sulfur, about 0.2-0.6 wt % copper, about 0.1-0.4 wt % chromium, about 0.4-0.8 wt % nickel, about 0.15-0.45 wt % molybdenum, about 0.2-1.0 wt % cobalt, about 0.02-0.06 wt % magnesium, and a maximum of 0.002 wt % rare earth element(s). The nodular iron alloy may have a Young's modulus in the range of 175-195 GPa and an as-cast ultimate tensile strength in the range of 750-950 MPa. This alloy possesses favorable strength, stiffness and noise/vibration/harshness qualities, making it suitable in crankshaft applications. A method of forming the nodular iron alloy includes feeding a magnesium-based material into a molten iron alloy through a continuous system at a constant amount.
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公开(公告)号：US20200048727A1
公开(公告)日：2020-02-13
申请号：US16056990
申请日：2018-08-07
Applicant: GM Global Technology Operations LLC
Inventor： Jianghuai Yang , James D. Cremonesi , Paul J. Gelazin , Qigui Wang , Daniel J. Wilson
Abstract: A method for manufacturing a crankshaft for an internal combustion engine with a plurality of journals having a hardened case with a first microstructure. The crankshaft is comprised of a steel comprising between about 0.3 wt % and 0.77 wt % Carbon. The first microstructure of the hardened case of the journals comprises between about 15% and 30% ferrite and a balance of martensite and the resultant subsurface residual stress between 310 MPa and 620 MPa.
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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：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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公开(公告)号：US12172210B2
公开(公告)日：2024-12-24
申请号：US18045947
申请日：2022-10-12
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Liang Wang , Daniel J. Wilson , Dale A. Gerard , Devin R. Hess , Paul J. Boone
Abstract: A high pressure die casting (HPDC) system for casting ultra-large single-piece castings for vehicles. The HPDC system includes a clear feeding path from at least one ingate to a predetermined thicker section of a mold cavity, a last to solidify ingate having an equivalent or larger feeding modulus than the highest feeding modulus of the other ingates, and thermal management elements. The clear feeding path, last to solidify ingate, and thermal management elements ensure sufficient supplemental molten metal flow to the thicker portion of the mold cavity to accommodate for shrinkage of the thicker portion of an ultra large casting during the casting and solidification process.
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