公开(公告)号：US12206288B2

公开(公告)日：2025-01-21

申请号：US17883887

申请日：2022-08-09

Applicant: GM Global Technology Operations LLC

Inventor： Alireza Fatemi ,  Huaxin Li ,  Yucong Wang ,  Eric C. Clough ,  Jonathan Watson

IPC: H02K1/27 ,  H02K1/276 ,  H02K15/02 ,  H02K15/03 ,  H02K21/12

Abstract: An electric machine may have a stator and a rotor including stacked plurality of electrical steel laminations forming a slot including a first end and opposing sides, the first end defined by a bridge extending between electrical steel on opposing sides of the slot, the bridge being located between the first end of the slot and an outer diameter surface of the rotor and beneath the outer diameter surface of the rotor, the bridge forming a base of a channel open at an outer diameter surface of the rotor.

公开(公告)号：US20240375206A1

公开(公告)日：2024-11-14

申请号：US18314315

申请日：2023-05-09

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Pankaj Kumar Jha ,  Lala Ram Patel ,  Yi Liu

IPC: B23K11/11

Abstract: A method of joining overlapping copper workpieces. The method includes overlapping a first copper workpiece with a second copper workpiece such that a plurality of projections on a second faying surface of the second copper workpiece are in contact with the first faying surface of the first copper work piece at a joining location where a metallurgical joint is ultimately established. The method further includes applying a compression force against a first exterior surface of the first copper workpiece and a second exterior surface of the second copper workpiece to urge the faying surfaces together, and passing an electric current at the joining location through the first and the second copper workpieces. The electric current flows through the plurality of projections to generate sufficient heat to effectuate the collapsing of the plurality of projections to bring the first second faying surfaces into contact to establish the metallurgical joint.

公开(公告)号：US20240342836A1

公开(公告)日：2024-10-17

申请号：US18299223

申请日：2023-04-12

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Yi Liu ,  Sen Jiang Zhou ,  Jack M. Gayney

IPC: B23K31/02 ,  B23K26/242 ,  B23K31/00

CPC classification number: B23K31/02 ,  B23K26/242 ,  B23K31/003 ,  B23K2101/005 ,  B23K2101/008

Abstract: A gear box having a carburized shaft and steel bearing assembly. The bearing includes an inner-race and an outer-race. The shaft includes a distal end surface extending perpendicularly from a shaft faying surface and a shaft annular beveled edge. The shaft faying surface is in intimate contact with the inner-race. The inner-race second annular face is coplanar with the distal end surface. The shaft annular beveled edge cooperates with the inner-race faying surface to define a half-V shaped groove. An annular weld joint is formed in the half-V shaped groove thereby joining the shaft to the inner-race. The outer-race includes a first width (W1) and the inner-race includes a second width (W2). W2 is wider than W1 by greater than 0 millimeters (mm) to about 10 mm.

公开(公告)号：US11707802B2

公开(公告)日：2023-07-25

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 ,  B23K26/24 ,  B23K26/06 ,  B23K26/062 ,  B23K26/08 ,  B23K26/60 ,  B23K26/12 ,  H05B6/10 ,  B23K103/04 ,  B23K101/00

CPC classification number: B23K26/035 ,  B23K26/062 ,  B23K26/0665 ,  B23K26/08 ,  B23K26/123 ,  B23K26/60 ,  B23K2101/008 ,  B23K2103/04 ,  H05B6/10

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 +/−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.

公开(公告)号：US11353101B2

公开(公告)日：2022-06-07

申请号：US16441816

申请日：2019-06-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin Li

IPC: F16H55/06 ,  F16H55/17 ,  B29D15/00 ,  C04B41/90 ,  B29L15/00

Abstract: A method for producing and reinforcing a composite gear includes providing a base material comprising a polymer and forming a composite gear from the base material, the composite gear having a gear body and at least one gear tooth extending from the gear body, the at least one gear tooth having a tooth face, a tooth flank, a tooth fillet, a tooth root, and a tooth tip. The method includes depositing a first metallic material to a first area of the at least one gear tooth of the composite gear, the first area including the tooth root of the at least one gear tooth and depositing a second metallic material to a second area of the at least one gear tooth of the composite gear. The first metallic material is applied in a first thickness and the second metallic material is applied in a second thickness.

公开(公告)号：US20220162968A1

公开(公告)日：2022-05-26

申请号：US17101425

申请日：2020-11-23

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Huaxin Li ,  Edward J. Keating ,  Liang Wang ,  Devin R. Hess

IPC: F01L3/02 ,  C22C9/06 ,  B23K26/34 ,  B23K35/30

Abstract: A valve seat formed within an aluminum engine component includes a valve seat surface machined within the aluminum engine component, a layer of copper alloy material laser clad onto the valve seat surface of the aluminum engine component, the layer of copper alloy material having a thickness of less than 2.0 millimeters, and a layer of copper alloy/tool steel carbide material laser clad onto the layer of copper alloy material, the layer of copper alloy/tool steel carbide material having an average thickness of less than 0.5 millimeters, wherein the layer of copper alloy/tool steel carbide material has an outer surface that is machined to a final valve seat profile.

公开(公告)号：US20210404353A1

公开(公告)日：2021-12-30

申请号：US16913636

申请日：2020-06-26

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Ronald J. Petrus

IPC: F01L3/06 ,  F02F1/24 ,  F01L3/02 ,  C22C9/01 ,  C22C9/06

Abstract: A system to attach valve seat inserts to an aluminum cylinder head of an automobile vehicle includes a cylinder head of an automobile vehicle engine having a valve seat portion. A valve seat insert is positioned in the valve seat portion of the cylinder head. A fusion bond is created between the valve seat insert and the valve seat portion by laser welding thereby fusing the valve seat insert to the valve seat portion.

公开(公告)号：US20200282451A1

公开(公告)日：2020-09-10

申请号：US16297592

申请日：2019-03-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin Li ,  Liang Wang ,  Richard D. Ricchi

IPC: B21K1/10 ,  F16C3/02

Abstract: A component includes a base formed of a majority of a first metallic element and a shell adhered to the base. The shell includes an inner portion having an inner surface contacting the base, an outer portion having an outer surface, and an intermediate zone connecting the inner portion to the outer portion. The shell is formed of a multi-element transition material, where the multi-element transition material includes a majority of a second metallic element at the inner surface and a majority of a third metallic element at the outer surface. The intermediate zone includes both the second and third metallic elements. Each of the first, second, and third metallic elements are different from one another. The component may be an automotive shaft. A method of forming the component may include depositing first and second powders on the base to form the inner and outer portions and the intermediate zone.

公开(公告)号：US10160060B2

公开(公告)日：2018-12-25

申请号：US14937396

申请日：2015-11-10

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Yujiro Suwa ,  Nieyuan Hai

IPC: B23K26/242 ,  B23K26/323 ,  B23K26/26 ,  B23K26/28 ,  B23K26/282 ,  B23K103/18 ,  B23K101/00 ,  B23K103/02 ,  B23K103/04

Abstract: A weld joint includes a first component of a first material and a second component of a ductile second material dissimilar from the first material. A planar face of the first component abuts a planar face of the second component. A “V” shaped weld groove is created in the first component defining a first groove end where a substantially planar groove face of the first component intersects a plane defined by the planar face of the second component below an end face of the second component. A slot is created below the groove end in the planar face of the second component having a closed end facing toward the end face of the second component and extending away from the planar face of the second component at an angle measured with respect to a central longitudinal axis of the slot.

公开(公告)号：US20170129051A1

公开(公告)日：2017-05-11

申请号：US14937396

申请日：2015-11-10

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Yujiro Suwa ,  Nieyuan Hai

IPC: B23K26/323 ,  B23K26/26 ,  B23K26/28

CPC classification number: B23K26/323 ,  B23K26/26 ,  B23K26/28 ,  B23K26/282 ,  B23K2101/006 ,  B23K2101/008 ,  B23K2103/02 ,  B23K2103/04 ,  B23K2103/18

Abstract: A weld joint includes a first component of a first material and a second component of a ductile second material dissimilar from the first material. A planar face of the first component abuts a planar face of the second component. A “V” shaped weld groove is created in the first component defining a first groove end where a substantially planar groove face of the first component intersects a plane defined by the planar face of the second component below an end face of the second component. A slot is created below the groove end in the planar face of the second component having a closed end facing toward the end face of the second component and extending away from the planar face of the second component at an angle measured with respect to a central longitudinal axis of the slot.