Part structure for projection welding a nonmetallic body to a metal part
    51.
    发明授权
    Part structure for projection welding a nonmetallic body to a metal part 失效
    焊接非金属部件到金属部件的部件结构

    公开(公告)号:US3601574A

    公开(公告)日:1971-08-24

    申请号:US3601574D

    申请日:1970-03-19

    CPC classification number: B23K11/0046 B23K11/14 B23K11/163

    Abstract: A part structure for projection resistance welding a nonmetallic or electrically non-conductivebody, such as of synthetic resin, wood, porcelain, ceramic, etc. to a metal base wherein the part structure comprises the nonconductive body, a conductive welding projection of the body, and a current conducting member carried by the body leading to the projection from a remote surface on the body; the part structure being weldable on a metal base by including the metal base and a welding machine electrode, such as press-platen, in a welding circuit and disposing the part structure between the metal base and the platen with welding current communicating from the platen to the base through the current conducting member and the projection to fuse the projection with the base.

    WELDED JOINT AND AUTOMOBILE MEMBER
    56.
    发明公开

    公开(公告)号:US20240058888A1

    公开(公告)日:2024-02-22

    申请号:US18270984

    申请日:2021-12-24

    CPC classification number: B23K11/163 B23K11/11 B23K35/282 B23K2103/04

    Abstract: The present disclosure inhibits liquid metal embrittlement (LME) cracking in a welded joint obtained by spot welding a first steel sheet and a second steel sheet. In the welded joint of the present disclosure, a first plating layer is provided on a surface of the first steel sheet facing the second steel sheet, no plating layer is present on or a second plating layer is provided on a surface of the second steel sheet facing the first steel sheet, and a boundary plating layer is provided between the first steel sheet and the second steel sheet in a range of 0.5 mm from an end part of the corona bond toward an outside of the spot welded part. A higher tensile strength of a tensile strength of the first steel sheet and a tensile strength of the second steel sheet is 780 MPa or more, an area ratio of a η-Zn phase at the cross-section of the boundary plating layer is 5% or more, and the first plating layer and the second plating layer satisfy predetermined Relations I and II.

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