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    SOUDAGE HETEROGENE ALUMINIUM/CUIVRE
    1.
    发明公开
    SOUDAGE HETEROGENE ALUMINIUM/CUIVRE 有权
    异构铝/铜焊接

    公开(公告)号：EP2919939A1

    公开(公告)日：2015-09-23

    申请号：EP13789743.5

    申请日：2013-10-31

    申请人： Centre National de la Recherche Scientifique ,  Universite de Nantes

    发明人： BENOIT, Alexandre ,  SCHLEICH, Donald ,  PAILLARD, Pascal ,  BAUDIN, Thierry

    IPC分类号： B23K9/00 ,  B23K9/23 ,  H01M2/22

    CPC分类号： B23K9/232 ,  B23K9/0035 ,  B23K9/095 ,  B23K9/16 ,  B23K37/0408 ,  B23K2203/10 ,  B23K2203/12 ,  B23K2203/18 ,  H01M2/26

    摘要： Method of assembling a first thin part to be welded made of copper (1) and a second thin part to be welded made of aluminium (2) using heterogeneous welding, the said method comprising a step that involves placing the ends of the said parts (1, 2) that are to be assembled so that they face one another and in pressing the said ends against one another so as to constitute a welding zone (3) extending along a welding zone (or line) between the parts (1, 2); and in applying an aluminium alloy by way of filler metal to the said welding zone (3) using a low energy welding method in which the electric arc (4) and the meltable filler wire (5) are wider than the combined thickness of the parts (1, 2), the said parts (1, 2) being held in such a way as to maintain the welding zone at the top using a fixing means comprising at least two rigid blocks (6a, 6b) of a conductive material the thickness of which is comprised between 1 and 2 mm, the length of which is greater than that of the parts to be welded (1, 2) and the width of which is sufficient to hold the said parts (1, 2), and a pressure fixing system allowing the blocks (6a, 6b) to be held against the parts (1, 2).