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    SYSTEM AND METHOD OF MAKING A CAST INDUCTION ROTOR ASSEMBLY HAVING CONDUCTIVE BARS
    41.
    发明公开
    SYSTEM AND METHOD OF MAKING A CAST INDUCTION ROTOR ASSEMBLY HAVING CONDUCTIVE BARS 审中-公开

    公开(公告)号：US20240291332A1

    公开(公告)日：2024-08-29

    申请号：US18174879

    申请日：2023-02-27

    Applicant: GM Global Technology Operations LLC

    Inventor： Qigui Wang ,  John S. Agapiou ,  Liang Wang ,  Lei Hao ,  Daniel J. Wilson ,  Steven L. Burkholder

    IPC: H02K1/26 ,  H02K15/02

    CPC classification number: H02K1/26 ,  H02K15/024

    Abstract: An induction rotor assembly having conductive bars is provided. The assembly comprises a lamination stack comprising a body having a first end and second ends to define a longitudinal axis. The body has an outer circumferential portion extending from the first end to the second end. The outer portion has a plurality of walls defining open slots formed from the first end through the second end. The assembly further comprises a first ring disposed on the first end and a second ring disposed on the second end. The assembly further comprises a plurality of conductive bars extending between the first and second rings. Each conductive bar is disposed in one of the slots such that the respective conductive bar is in contact with the lamination stack and connects the first and second rings. Each bar comprises an inner portion and a conductive outer skin disposed about the inner portion.

    METHOD OF IN-SITU REPAIR OF AN ULTRA-LARGE SINGLE-PIECE CASTING
    43.
    发明公开
    METHOD OF IN-SITU REPAIR OF AN ULTRA-LARGE SINGLE-PIECE CASTING 审中-公开

    公开(公告)号：US20230339052A1

    公开(公告)日：2023-10-26

    申请号：US17729603

    申请日：2022-04-26

    Applicant: GM Global Technology Operations LLC

    Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R. Hess ,  Michelle A. Wood ,  Ali Shabbir ,  Ronald C. Daul ,  Dale A. Gerard ,  Gregory Melekian

    IPC: B23P6/04

    CPC classification number: B23P6/04

    Abstract: A method of repairing an ultra-large single-piece cast component of a vehicle body. The method includes the steps of locating a damaged portion of the cast component, determining an extent of the damaged portion of the ultra-large cast component, defining a cut-line sectioning off the damaged portion from an undamaged portion of the ultra-large cast component, cutting along the cut-line to excise the damaged portion from the undamaged portion of the ultra-large cast component, and joining a replacement piece to the undamaged portion of the ultra-large cast component. The replacement piece is fabricated based on the original manufacturer’s geometry and dimensional data of the excised damaged portion. The undamaged portion of the ultra-large cast component remains on the vehicle body during the repair.

    DISSIMILAR METAL LASER WELDING
    45.
    发明申请
    DISSIMILAR METAL LASER WELDING 有权

    公开(公告)号：US20220161362A1

    公开(公告)日：2022-05-26

    申请号：US17101316

    申请日：2020-11-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Huaxin Li ,  Liang Wang ,  Daniel J. Wilson ,  Jatinder P. Singh

    IPC: B23K26/323 ,  B32B15/01 ,  C22C9/06 ,  B23K35/30 ,  B23K33/00 ,  B23K26/211 ,  B23K26/342 ,  B23K26/60

    Abstract: A method of welding a component made from a ferrous alloy to a component made from an aluminum alloy includes machining and cleaning a fay surface on the ferrous alloy component, machining and cleaning a fay surface on the aluminum alloy component, depositing a layer of copper alloy material onto the fay surface of the ferrous alloy component, forming a weld groove on at least one of the layer of copper alloy material deposited on the fay surface of the ferrous alloy component and the fay surface of the aluminum alloy component, and laser welding the layer of copper alloy deposited on the fay surface of the ferrous alloy component and the fay surface of the aluminum alloy component to one another.

    TORSIONAL DAMPER AND METHOD OF WELDING PARTS HAVING DISSIMILAR MATERIALS
    46.
    发明申请
    TORSIONAL DAMPER AND METHOD OF WELDING PARTS HAVING DISSIMILAR MATERIALS 有权

    公开(公告)号：US20210402504A1

    公开(公告)日：2021-12-30

    申请号：US16913406

    申请日：2020-06-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Daniel J. Wilson ,  Huaxin Li ,  James D. Cremonesi ,  Jianghuai Yang ,  Liang Wang ,  Qigui Wang

    IPC: B23K20/12 ,  B23K20/227 ,  B23K20/02

    Abstract: A method of joining first and second parts formed of dissimilar materials is provided. The first part defines a first part contacting surface having a frustoconical shape. The first and second parts are brought into contact with one another, with one of the first and second parts being rotated while the other remains stationary, so as to generate frictional heat between the contacting surfaces of the parts, the generated frictional heat producing softened adjacent regions in the first and second parts. A force is applied to the first and second parts to plastically deform the softened adjacent regions and to forge together the first and second parts to form a solid-state joint. A composite torsional damper hub assembly includes a steel stem and a damper hub welded to the stem at an interface. The damper hub is formed of aluminum or an aluminum alloy, and the interface is generally frustoconical.

    HIGH STRENGTH JOINTS BETWEEN STEEL AND TITANIUM
    47.
    发明申请
    HIGH STRENGTH JOINTS BETWEEN STEEL AND TITANIUM 有权

    公开(公告)号：US20210116009A1

    公开(公告)日：2021-04-22

    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 ,  C22C38/04 ,  B23K11/26 ,  B23K11/11 ,  B23K11/20

    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.

    BIMETALLIC PISTON PIN
    50.
    发明申请
    BIMETALLIC PISTON PIN 审中-公开

    公开(公告)号：US20180292006A1

    公开(公告)日：2018-10-11

    申请号：US15482845

    申请日：2017-04-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Huaxin Li ,  Glenn E. Clever ,  Daniel J. Wilson

    IPC: F16J1/16

    Abstract: A bimetallic piston pin for a vehicle engine includes a tubular steel alloy shell, a first core member, a second core member and a middle core member. The tubular steel alloy shell includes a first end, a second end and a middle region. The tubular steel alloy shell also includes an interior surface and an exterior surface. The first core member may be disposed within the tubular steel alloy shell at the first end and the second core member may also disposed within the tubular steel alloy shell at the second end. The middle core member may be disposed within the tubular steel alloy shell between the first core member and the second core member.

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