Process for butt welding two metal blanks and a motor vehicle part
obtained by said process
    1.
    发明授权
    Process for butt welding two metal blanks and a motor vehicle part obtained by said process 失效
    用于对接通过所述方法获得的两个金属坯料和机动车部件的对接方法

    公开(公告)号:US5828032A

    公开(公告)日:1998-10-27

    申请号:US627013

    申请日:1996-04-03

    Abstract: Process for butt welding two metal blanks(1,2) of which the first blank is of steel and the second blank is of a metal having a melting temperature lower by more than 400.degree. C. than the melting temperature of the steel. The process includes positioning the two metal blanks (1,2) so that they contact each other in the region of their lateral faces to be butted together, maintaining the two metal blanks in contact, directing onto one of the principal faces of the metal blank (1) a high energy density bean (5) which passes through the first metal blank (1) and of which the focusing point is situated at a given distance from the joint plane (3) so as to generate in the region of the joint plane (3) a temperature equal to the melting temperature of the second metal blank (2) to within 10%, and displacing the high energy density beam (5). This process is applicable to the welding of two metal blanks of which one is of steel and the other is of aluminium or aluminium alloy for producing a motor vehicle part, in particular a body and structural part.

    Abstract translation: 用于对接第一坯料为钢的两个金属坯料(1,2)的对接焊接和第二坯料的熔融温度比钢的熔化温度低400℃以上的金属。 该方法包括定位两个金属坯料(1,2),使得它们在它们的侧面的区域中彼此接触以对接在一起,保持两个金属坯料接触,引导到金属坯料的一个主面 (1)高能密度豆(5),其穿过第一金属坯料(1),并且其聚焦点位于距接头平面(3)给定距离处,以便在接头区域中产生 平面(3)等于第二金属坯料(2)的熔化温度的温度在10%以内,并且移动高能量密度束(5)。 该方法适用于两个金属坯料的焊接,其中一个是钢,另一个是铝或铝合金用于制造汽车部件,特别是机体和结构部件。

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