公开(公告)号：US10151351B2

公开(公告)日：2018-12-11

申请号：US15144338

申请日：2016-05-02

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Scott William Heitzenrater

IPC: F16D1/068 ,  B23K20/12 ,  B23K20/227 ,  B23K20/22 ,  B23K101/00 ,  B23K103/20

Abstract: A weld includes a first component and a second component. The first component includes a fay surface with one or more grooves. The second component includes a surface that is configured to mate with the fay surface of the first component. The fay surface of the first component and the surface of the second component form a friction weld when the two surfaces are mated together and relative motion between the first component and the second component generates heat through mechanical friction between the two components.

公开(公告)号：US20180347452A1

公开(公告)日：2018-12-06

申请号：US15611180

申请日：2017-06-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Grant W. Brady ,  Huaxin Li ,  Julie A. Swartz ,  Jane E. Preston

IPC: F02B37/18 ,  F02B39/08 ,  B23K26/22

Abstract: A method of joining parts of the wastegate assembly, and a wastegate assembly includes an arm defining a hole. The wastegate assembly also includes a shaft. The shaft includes a first end disposed inside the hole of the arm. The shaft includes an outer surface defining a groove disposed inside the hole of the arm. The arm and the first end of the shaft are welded together to form a joint having a joint root region disposed adjacent to the groove.A turbocharger includes a compressor, a turbine and a rotating assembly driven by exhaust gas. The rotating assembly has a turbine wheel disposed inside the turbine and a compressor wheel disposed inside the compressor. The turbocharger further includes the wastegate assembly described above, and the wastegate assembly defines an opening configured to selectively redirect at least a portion of the exhaust gas to bypass the turbine wheel.

公开(公告)号：US10086469B2

公开(公告)日：2018-10-02

申请号：US14845675

申请日：2015-09-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin Li ,  Justin A. Wolsker

IPC: B23K20/10 ,  B23K26/22 ,  B23K26/322 ,  B23K26/16 ,  B23K20/227 ,  B23K20/24 ,  B23K26/60 ,  B23K103/16 ,  B23K103/04 ,  B23K103/08

Abstract: A method for welding together two workpieces. The method includes stamping, using a stamping system, a first workpiece comprising a material that creates vapor when melted, such as zinc. The first workpiece is stamped at a first preselected region to form a plurality of depressions in the first preselected region. The method further includes positioning the first preselected region adjacent a second preselected region of a second workpiece. After stamping and positioning as such, the method includes applying energy to at least one of the first preselected region and the second preselected region to melt material of the first and second workpieces to form a joint connecting together the first and second workpieces. Based on the configuration and arrangement created, any vapor formed by molten material vents from the joint being formed, between the depressions formed, and away from the first and second workpieces.

公开(公告)号：US20180127861A1

公开(公告)日：2018-05-10

申请号：US15343286

申请日：2016-11-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin Li ,  Dale A. Gerard ,  Martin S. Kramer

IPC: C23C4/02 ,  F02F1/00 ,  C23C4/16 ,  C23C4/073 ,  B23K26/34

CPC classification number: C23C4/02 ,  B23K26/34 ,  B23K2101/04 ,  C23C4/073 ,  C23C4/16 ,  F02F1/00 ,  F02F1/004 ,  F02F2200/00

Abstract: An engine block and a method of coating an inner surface of an engine cylinder bore of an engine cylinder are provided. The method includes attaching a strengthening layer or ring onto an upper portion of the inner surface of the cylinder bore. The strengthening layer or ring may be attached by laser cladding. The method also includes depositing a thermal spray coating onto the inner surface of the cylinder bore and the strengthening layer or ring.

公开(公告)号：US20180111231A1

公开(公告)日：2018-04-26

申请号：US15333219

申请日：2016-10-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qigui Wang ,  William L. Miller ,  Jianghuai Yang ,  Huaxin Li

IPC: B23K31/02 ,  F02F1/00 ,  B23K37/053

CPC classification number: B23K31/02 ,  B23K20/129 ,  B23K37/053 ,  B23K2101/006 ,  F02F1/004 ,  F02F2200/00

Abstract: A method for metallurgically bonding a cylinder liner in a bore in an engine block includes axially aligning the cylinder liner with a bore in the engine block, rotating the cylinder liner about the aligned axis, and translating the cylinder liner along the aligned axis to position the cylinder liner within the bore.

公开(公告)号：US20180099347A1

公开(公告)日：2018-04-12

申请号：US15288060

申请日：2016-10-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin Li ,  David J. Paluch ,  John Jess ,  Joel A. Fillmore

IPC: B23K11/00 ,  B23K11/26

CPC classification number: B23K11/002 ,  B23K11/093 ,  B23K11/14 ,  B23K11/26 ,  B23K31/003

Abstract: An apparatus for improving weld uniformity, controlling weld spatter and reducing weld joint bending stresses. The apparatus includes a first component having a welding contact point and a second component having a weld zone for engaging with the welding contact point of the first component. At least one weld upset distance stop is formed on the first or second component operative to control weld spatter and to reduce weld joint bending stresses.