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    Process and System for Laser Welding Pre-Coated Sheet Metal Workpieces
    2.
    发明申请
    Process and System for Laser Welding Pre-Coated Sheet Metal Workpieces 审中-公开

    公开(公告)号：US20170095886A1

    公开(公告)日：2017-04-06

    申请号：US15311832

    申请日：2015-06-19

    申请人： Magna International Inc.

    发明人： Hongping Gu ,  Boris Shulkin ,  Robert Mueller ,  Jeremiah John Brady

    IPC分类号： B23K26/06 ,  B23K26/322

    CPC分类号： B23K26/0608 ,  B23K26/322 ,  B23K26/361 ,  B23K2101/006 ,  B23K2103/04 ,  B23K2103/08

    摘要： A process for laser-welding pre-coated sheet metal plates comprises loading two pre-coated sheet metal plates at a workstation, such that edges of the plates that are to be welded together are butted against one another. Each plate has a steel substrate and a pre-coat layer, the pre-coat layer including an intermetallic alloy layer and a metallic alloy layer. In a single pass, an area of each plate adjacent to the edges that are butted against one another is irradiated with a defocussed laser beam, thereby melting material of the pre-coat layer within said area of each plate. During the single pass, a stream of a gas is used to blow the melted pre-coat material out of the irradiated areas of the two plates. Absent removing the two plates from the workstation, laser-welding the plates together is performed using a focused laser beam.

    Method of Laser Welding Coated Steel Sheets with Addition of Alloying Elements
    4.
    发明申请
    Method of Laser Welding Coated Steel Sheets with Addition of Alloying Elements 审中-公开
    激光焊接涂层钢板加入合金元素的方法

    公开(公告)号：US20160318127A1

    公开(公告)日：2016-11-03

    申请号：US15207992

    申请日：2016-07-12

    申请人： Magna International Inc.

    发明人： Hongping Gu ,  Aldo Van Gelder ,  Jeremiah John Brady ,  Edward K. Steinebach ,  Mark Justin Jones

    IPC分类号： B23K26/322 ,  B23K26/144 ,  B23K26/21

    CPC分类号： B23K26/322 ,  B23K26/144 ,  B23K26/244 ,  B23K26/26 ,  B23K2101/34 ,  B23K2103/08

    摘要： A process is described for laser welding a sheet metal workpiece having an aluminum-silicon containing pre-coat layer disposed on at least one major surface thereof, and having first and second opposite side edges. The sheet metal workpiece is arranged such that the first and second side edges are in contact with one another and such that the at least one major surface faces outwardly. A closed tube-shaped product is obtained by forming a laser-weld joint between the first and second side edges. In particular the laser-weld joint is formed absent removing the aluminum-silicon containing layer from along the adjacent edges, such that aluminum from the aluminum-silicon containing layer enters into the melt pool that is formed. An alloying material is introduced into the melt pool during laser welding and forms a compound with at least some of the aluminum in the melt pool.

    摘要翻译： 描述了一种用于激光焊接具有设置在其至少一个主表面上的具有铝硅预涂层并且具有第一和第二相对侧边缘的金属板工件的工艺。 钣金工件被布置成使得第一和第二侧边缘彼此接触并且使得至少一个主表面朝外。 通过在第一和第二侧边缘之间形成激光焊接接头来获得封闭的管状产品。 特别地，激光焊接接头在不沿着相邻边缘去除含铝硅层的情况下形成，使得来自含铝硅的层的铝进入形成的熔池中。 在激光焊接期间将合金材料引入熔池中，并与熔池中的至少一些铝形成化合物。

    Method and Apparatus for Forming Materials with Low Ductility
    6.
    发明申请
    Method and Apparatus for Forming Materials with Low Ductility 审中-公开

    公开(公告)号：US20190076908A1

    公开(公告)日：2019-03-14

    申请号：US16189760

    申请日：2018-11-13

    申请人： Magna International Inc.

    发明人： Boris Shulkin ,  Maximilian Amtmann ,  Hongping Gu

    IPC分类号： B21D39/02 ,  B21B1/00 ,  B32B38/00 ,  C22F1/04 ,  B21B1/38 ,  C22F1/06 ,  B21D37/16

    摘要： A method of hemming a low ductile material includes providing a first sheet made from the low ductile material and providing an integrated hemming device having at least one laser head and a roll forming assembly comprising a roller. The first sheet is hemmed by moving the roll forming assembly relative to the first sheet along a hemming direction, wherein the roll forming assembly is arranged relative to the first sheet to form a bending region in front of the roll forming assembly. The at least one laser head directs laser light along two optical paths to form two irradiation spots. One of the irradiation spots irradiates a localized portion of the first sheet along the hemming direction at a substantially constant predetermined distance in front of the roll forming assembly and within the bending region, and the other of the irradiation spots irradiates a portion of the roller.

    Method of Laser Beam Localized-Coating
    8.
    发明申请
    Method of Laser Beam Localized-Coating 审中-公开

    公开(公告)号：US20200180078A1

    公开(公告)日：2020-06-11

    申请号：US16779993

    申请日：2020-02-03

    申请人： Magna International Inc.

    发明人： Hongping Gu ,  Aldo Anthony Van Gelder ,  Jeremiah John Brady ,  Edward K. Steinebach ,  Mark Justin Jones

    IPC分类号： B23K26/322 ,  F16B5/08 ,  B23K26/342 ,  C23C24/08 ,  B23K26/34 ,  B23K26/144

    摘要： A process is described for laser welding a sheet metal workpiece having an anti-corrosion pre-coat material on at least one major surface thereof. The sheet metal workpiece is arranged such that first and second side edges are in contact with one another and the coated major surface faces outwardly. A first laser beam having a first beam spot-size is used to form a laser weld joint between the first and second side edges. A second laser beam having a second beam spot-size larger than the first beam spot-size is then scanned along the laser weld joint and is tilted in a tilt direction parallel to the scanning direction to produce an elongated beam spot. During the scanning, a flow of a powdered anti-corrosion surface layer material is directed toward a portion of the laser weld joint that is being irradiated by the second laser beam. The second laser beam melts the material, which forms a layer adhering to the laser weld joint.

    Method of laser beam localized-coating
    9.
    发明授权
    Method of laser beam localized-coating 有权

    公开(公告)号：US10583528B2

    公开(公告)日：2020-03-10

    申请号：US15167884

    申请日：2016-05-27

    申请人： Magna International Inc.

    发明人： Hongping Gu ,  Aldo Anthony Van Gelder ,  Jeremiah John Brady ,  Edward K. Steinebach ,  Mark Justin Jones

    IPC分类号： B23K26/322 ,  B23K26/144 ,  B23K26/342 ,  B23K26/34 ,  C23C24/08 ,  F16B5/08 ,  B23K103/04 ,  B23K101/00 ,  B23K103/20 ,  B23K103/08

    摘要： A process is described for laser welding a sheet metal workpiece having an anti-corrosion pre-coat on at least one major surface thereof and having first and second opposite side edges. The sheet metal workpiece is arranged such that the first and second side edges are in contact with one another and such that the at least one major surface faces outwardly. A laser beam having a first beam spot-size, is used to form a laser weld joint between the first and second side edges. Subsequently, a localized anti-corrosion surface layer is formed on the laser weld joint. To this end, a laser beam having a second beam spot-size larger than the first beam spot-size is scanned along the laser weld joint. During the scanning, a flow of a powdered anti-corrosion surface layer material is directed toward a portion of the laser weld joint that is being irradiated by the laser beam. The laser beam melts the material, which subsequently solidifies to form a layer adhering to the laser weld joint.