JOINING METHOD OF DISSIMILAR METAL PLATES AND DISSIMILAR METAL JOINED BODY
    2.
    发明申请
    JOINING METHOD OF DISSIMILAR METAL PLATES AND DISSIMILAR METAL JOINED BODY 有权
    异形金属板和金属接合体的接合方法

    公开(公告)号:US20110097594A1

    公开(公告)日:2011-04-28

    申请号:US12909610

    申请日:2010-10-21

    Abstract: The joining method of the present invention includes a lapping step of lapping the aluminum alloy plate (1) and the plated steel plate (2) via the adhesive (5), a pre-heating step of clamping both of the metal plates (1, 2) that have been lapped in the lapping step between a pair of electrodes (7, 7) for spot welding and applying pressure thereto, and applying a current between the pair of electrodes (7, 7), a cooling step of pressurizing, after the pre-heating step, both of the metal plates (1, 2) at a pressing force which is higher than that at the start of the pre-heating step in a state where conduction between the electrodes (7, 7) is stopped, and continuing this pressurization over a predetermined cooling time, and a welding step of pressurizing, after the cooling step, both of the metal plates (1, 2) at a pressing force which is higher than that at the start of the pre-heating step, and welding both of the metal plates (1, 2) by applying a current which is higher than the conduction current value in the pre-heating step between the pair of electrodes (7, 7). It is thereby possible to firmly join the dissimilar metal plates (1, 2) by combining adhesion due to an adhesive and spot welding.

    Abstract translation: 本发明的接合方法包括:研磨步骤,通过粘合剂(5)研磨铝合金板(1)和镀覆钢板(2);预热步骤,夹紧两个金属板(1, 2)在一对电极(7,7)之间的研磨步骤中已经被研磨以进行点焊并施加压力,并且在该对电极(7,7)之间施加电流,之后的冷却步骤 所述预热步骤,在所述电极(7,7)之间的导通停止的状态下,所述两个所述金属板(1,2)处于比所述预热步骤开始时的按压力高的压力下, 并且在预定的冷却时间内继续该加压,以及在冷却步骤之后,以比预热步骤开始时的压力高的加压力对两个金属板(1,2)进行加压的焊接步骤 ,并且通过施加高于导体的电流来焊接两个金属板(1,2) 在一对电极(7,7)之间的预热步骤中的电流值。 因此,可以通过粘合剂的粘合和点焊的组合来牢固地接合不同的金属板(1,2)。

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