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    Method For Laser Welding
    2.
    发明公开
    Method For Laser Welding 审中-公开

    公开(公告)号：US20240165743A1

    公开(公告)日：2024-05-23

    申请号：US18551027

    申请日：2022-03-22

    申请人： Kirchhoff Automotice Deutschland GmbH

    发明人： Jan STUHRMANN ,  Christian DAHMEN

    IPC分类号： B23K26/244 ,  B23K26/242

    CPC分类号： B23K26/244 ,  B23K26/242

    摘要： A method is described for laser welding two joining partners (1d, 2d) made of a metal material and held together in a lap joint, wherein the first joining partner (1d) includes a joining flange (3) having a joint and the second joining partner (2d) includes a joining zone (6d) on a flat side, wherein for the process of laser welding, the first joining partner (1d) is held contacting the joining zone (6d) of the second joining partner (2d) with one side of its joining flange (3d), wherein between the two joining partners (1d, 2d), a gap (10d) widening in the direction pointing away from the side to which the laser is applied is provided and the laser beam (7) is directed in the fillet formed by joining zone (6d) and joining flange (3d) at an angle α of 1° to 45° in relation to the plane of the joining zone 6d and the welding is carried out so that the weld seam (12) formed extends into the gap 10d and in this way in the gap (10d) a gap base SB is formed, by which the opposing surfaces of the joining partners (1d, 2d) are spaced apart.

    Weld wheel cleaning system
    6.
    发明授权
    Weld wheel cleaning system 有权

    公开(公告)号：US11858059B2

    公开(公告)日：2024-01-02

    申请号：US17523351

    申请日：2021-11-10

    申请人： Cleveland-Cliffs Steel Properties Inc.

    发明人： Daniel J. Cadotte ,  David E. Brandau

    IPC分类号： B23K11/30 ,  B23K26/244 ,  A47L5/12 ,  B29C65/00

    CPC分类号： B23K11/3063 ,  B23K11/3036 ,  A47L5/12 ,  B23K26/244 ,  B29C66/876

    摘要： A weld wheel cleaning system is provided to clean or remove a layer of embedded material and other debris produced from welding from the working surface of a weld wheel. Such a weld wheel cleaning system includes a cleaner with an abrasive material positioned on an outer surface of the cleaner. The cleaner is positionable adjacent to the weld wheel such that the abrasive material is aligned with the working surface of the weld wheel. An actuator can be used to selectively actuate the cleaner with a force sufficient to remove the layer of embedded material from the working surface of the weld wheel with the abrasive material. The debris from the cleaner can be removed by a vacuum.

    METHOD FOR LASER WELDING TWO THIN WORKPIECES IN A REGION OF OVERLAP
    8.
    发明公开
    METHOD FOR LASER WELDING TWO THIN WORKPIECES IN A REGION OF OVERLAP 审中-公开

    公开(公告)号：US20230256540A1

    公开(公告)日：2023-08-17

    申请号：US18302008

    申请日：2023-04-18

    申请人： TRUMPF Laser- und Systemtechnik GmbH

    发明人： Oliver Bocksrocker ,  Tim Hesse

    IPC分类号： B23K26/244 ,  B23K26/082

    CPC分类号： B23K26/244 ,  B23K26/082 ,  B23K2103/04

    摘要： A method for laser welding two workpieces includes arranging a first workpiece of a thickness D1 and a second workpiece of a thickness D2 on top of one another so that the first workpiece and the second workpiece overlap in a region of overlap. Each of D1 and D2 is 400 μm or less. The method further includes melting, using a laser beam guided along a weld seam, a material of the first workpiece over an entirety of the thickness D1 and a material of the second workpiece over only a partial thickness TD of the thickness D2 in the region of overlap, from a side of the first workpiece. The laser beam generates a vapor capillary that extends to a capillary depth KT into the first workpiece or into the first workpiece and the second workpiece, where 0.33*EST≤KT≤0.67*EST, with EST being a weld depth EST=D1+TD.