中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

12 records (took 0.017 seconds)

    CLOSED-LOOP LASER-WELD ASSEMBLIES
    2.
    发明申请
    CLOSED-LOOP LASER-WELD ASSEMBLIES 有权

    公开(公告)号：US20250153275A1

    公开(公告)日：2025-05-15

    申请号：US18505600

    申请日：2023-11-09

    Applicant: GM Global Technology Operations LLC

    Inventor： Huaxin Li ,  Pankaj Kumar Jha ,  Kaushik Kalita ,  Yi Liu ,  Qigui Wang ,  Lala Ram Patel ,  Masoud MohammadPour

    IPC: B23K26/26 ,  F16B5/08

    Abstract: Systems, methods, and assemblies for forming or employing closed-loop laser-welds are described. Closed-loop laser-welds may be formed by, for example, actuating a laser on a substrate at a first point to initiate a weld and scanning the laser along a starting weld path, along a main weld path, and along an ending weld path. The starting weld path is from the first point to a second point. The main weld path is from the second point to a third point. The ending weld path is from the third point to a fourth point. The laser is scanned from the second point to the third point such that a bead of the main weld path defines an inner perimeter and an outer perimeter. The outer perimeter defines a closed-loop laser weld. The first point and the fourth points are within the inner perimeter.

    PRODUCTION AND USE OF COMPOSITE GRAPHENE-COPPER POWDERS
    6.
    发明申请
    PRODUCTION AND USE OF COMPOSITE GRAPHENE-COPPER POWDERS 有权

    公开(公告)号：US20250122595A1

    公开(公告)日：2025-04-17

    申请号：US18486468

    申请日：2023-10-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Qigui Wang ,  Yi Liu ,  Ronald C. Daul ,  Ali Shabbir ,  Kestutis A. Sonta ,  Daniel J. Wilson

    IPC: C22C1/10 ,  B33Y80/00 ,  C01B32/19 ,  C22C9/00

    Abstract: Systems, methods, and devices for forming and implementing a graphene-copper composite powder are disclosed. The graphene-copper composite powder may be formed by providing an inert environment, introducing a first mist to the inert environment, introducing a second mist to the inert environment, and mixing the first mist and the second mist within the inert environment to thereby produce a graphene-copper composite powder. The first mist being atomized copper with a negative charge, and the second mist including graphene flakes with a positive charge. The graphene-copper composite powder may be used to form components via additive manufacturing or traditional powder metallurgy processes.

    CONDUCTIVE CABLE FOR A BATTERY ELECTRIC VEHICLE
    7.
    发明申请
    CONDUCTIVE CABLE FOR A BATTERY ELECTRIC VEHICLE 有权

    公开(公告)号：US20240395438A1

    公开(公告)日：2024-11-28

    申请号：US18322211

    申请日：2023-05-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Yi Liu ,  Qigui Wang ,  Huaxin Li ,  Kestutis A. Sonta ,  Daniel J. Wilson

    IPC: H01B1/02 ,  H01B1/04 ,  H01B5/08

    Abstract: A conductive cable for a battery electric vehicle is provided. The conductive cable comprises a plurality of first members in alignment to define a longitudinal axis of the conductive cable. Each first member comprises a first conductive wire about which a first outer layer is disposed for electric current to flow therethrough relative to the longitudinal axis. The first outer layer comprises a first metal substrate having a first side and an opposite second side. The first outer layer comprises a first copper-graphene (Cu-Gr) multilayer composite disposed on the first side and a second Cu-Gr multilayer composite disposed on the second side of the first metal substrate. Each first conductive wire comprises a first metallic material. The plurality of first members is disposed together along the longitudinal axis to define a cable bundle. The conductive cable further comprises a non-conductive layer disposed about the cable bundle.

    METHOD OF RESISTANCE SPOT WELDING OF ELECTRICALLY CONDUCTIVE WORKPIECES FOR ELECTRIC VEHICLES
    9.
    发明申请
    METHOD OF RESISTANCE SPOT WELDING OF ELECTRICALLY CONDUCTIVE WORKPIECES FOR ELECTRIC VEHICLES 有权

    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.

Patent Agency Ranking