公开(公告)号：EP2322308A1

公开(公告)日：2011-05-18

申请号：EP08791114.5

申请日：2008-07-11

申请人： Mitsubishi-Hitachi Metals Machinery, Inc.

发明人： KAGA, Shinichi ,  TOMINAGA, Noriaki ,  SAITO, Takehiko ,  ONOSE, Mitsuru ,  YOSHIMURA, Yasutsugu ,  TAGATA, Hirotoshi ,  WATANABE, Yujiro ,  ZENITANI, Satoru ,  WAKAMOTO, Ikuo

IPC分类号： B23K11/06 ,  B21D1/02 ,  B23K11/36 ,  B23K31/00 ,  B23K37/08

CPC分类号： B23K11/061 ,  B23K11/36 ,  B23K37/08 ,  B23K2201/185 ,  B23K2203/04

摘要： A pair of upper and lower electrode wheels (1, 2) are disposed so that their axes (17, 18) are tilted in a horizontal plane in respective directions opposite to each other with respect to a straight line (Y) perpendicular to a welding line (X) defined on overlapping portions (L) of two metal plates (5, 6), and mash seam welding is performed while positively driving electric motors (61, 62). This can reduce the increased amount of thickness and step gradient of a joint portion to reduce a stress concentration factor to ensure a high degree of joint strength. The metal plates are joined to each other such that a nugget (N) is not deviated from a joint interface. The respective tilting directions of the axes (17, 18) of the electrode wheels (1, 2) are made to face in the horizontal plane toward the extending direction of a metal plate with which the electrode wheels (1, 2) first come into contact. Therefore, it is possible to prevent respective ends of the metal plates at the overlapping portions L from biting into and scratching the corresponding electrode wheels (1, 2) and to prevent the occurrence of spattering during the welding.

摘要翻译： 一对上，下电极轮（1,2）被布置成使得它们的轴线（17,18）相对于垂直于焊接的直线（Y）在彼此相反的方向上在水平面内倾斜 （5）的重叠部分（L）上限定线（X），并且在正向驱动电动机（61,62）的同时执行压薄滚缝焊接。 这可以减小接头部分的增加的厚度和阶梯度，以减小应力集中系数以确保高度的接合强度。 金属板彼此接合，使得熔核（N）不会从接合界面偏离。 使电极轮（1,2）的轴（17,18）的各个倾斜方向朝向水平面朝向电极轮（1,2）首先进入的金属板的延伸方向 联系。 因此，可以防止重叠部分L处的金属板的相应端部咬入并刮擦相应的电极轮（1,2），并防止在焊接期间发生飞溅。

公开(公告)号：EP2329909A1

公开(公告)日：2011-06-08

申请号：EP08791115.2

申请日：2008-07-11

申请人： Mitsubishi-Hitachi Metals Machinery, Inc.

发明人： KAGA, Shinichi ,  TOMINAGA, Noriaki ,  SAITO, Takehiko ,  ONOSE, Mitsuru ,  YOSHIMURA, Yasutsugu ,  TAGATA, Hirotoshi ,  WATANABE, Yujiro ,  ZENITANI, Satoru ,  WAKAMOTO, Ikuo

IPC分类号： B23K31/00 ,  B21D1/02 ,  B23K11/04 ,  B23K11/06 ,  B23K11/36 ,  B23K20/12 ,  B23K26/20 ,  B23K37/08

CPC分类号： B23K37/047 ,  B23K11/04 ,  B23K11/061 ,  B23K11/087 ,  B23K20/04 ,  B23K20/122 ,  B23K20/1265 ,  B23K26/24 ,  B23K26/244 ,  B23K26/26 ,  B23K31/02 ,  B23K37/0408 ,  B23K2201/12 ,  B23K2201/18 ,  B23K2203/04

摘要： A pair of upper and lower pressure rollers (3, 4) is disposed so that their axes (15, 16) are tilted in a horizontal plane in respective directions opposite to each other with respect to a straight line perpendicular to a welding line of a joint portion J. The pressure rollers (3, 4) are positively driven by corresponding electric motors (63, 64) to thereby roll the joint portion. Thus, steps defined at the joint portion can be smoothed and a step gradient can be reduced to ensure a high degree of joint strength. The respective tilting directions of the axes (15, 16) of the pressure rollers (3, 4) are such that respective travel-directional portions (3A, 4A) of the pair of pressure rollers (3, 4) face in the horizontal plane toward the corresponding directions opposite to the extending directions of metal plates (5, 6) concerning a metal material with which the pressure rollers (3, 4) first come into contact. Thus, it is possible to prevent a step portion from being interfolded into the base material of the metal plates (5, 6). Thus, a stress concentration factor can be reduced and the steps S defined at the joint portion can be smoothed, thereby enhancing the quality of the joint portion.

摘要翻译： 一对上下压力辊（3,4）被设置成使得它们的轴线（15,16）相对于垂直于焊接线的直线彼此相反的各个方向在水平面上倾斜 接合部分J.压力辊（3,4）由相应的电动机（63,64）主动地驱动，从而滚动接头部分。 因此，可以平滑在接合部分处限定的台阶，并且可以减小阶跃梯度以确保高度的接合强度。 压力辊（3,4）的轴线（15,16）的相应倾斜方向使得一对加压辊（3,4）的各行进方向部分（3A，4A）在水平面 朝向与压力辊（3,4）首先接触的金属材料的金属板（5,6）的延伸方向相反的相应方向。 因此，可以防止台阶部分被折叠成金属板（5,6）的基材。 因此，可以减小应力集中系数，并且可以平滑在接合部分限定的台阶S，从而提高接合部的质量。