公开(公告)号：JP2010172945A

公开(公告)日：2010-08-12

申请号：JP2009019064

申请日：2009-01-30

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： OKITA YASUAKI ,  IKEDA TOMOMASA

IPC: B23K11/11 ,  B23K103/04

Abstract: PROBLEM TO BE SOLVED: To provide a resistance spot welding method of a high-strength steel sheet, which is excellent in tensile property of a joint.
SOLUTION: In the resistance spot welding method of high-strength steel sheets, when resistance spot welding is performed while superimposed high-strength steel sheets 13, 14 are held between a pair of electrodes 11, 12 and a pressure force is added, after a first spot is welded, the position of the electrodes 11, 12 is moved and then, after the weld zone 13 of the first spot is cooled to the temperature of M
f point or below, welding of a second spot is performed in a manner that a part of the weld zone 17 of the second spot is superimposed on the weld zone 13 of the first spot.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种接头的拉伸性优异的高强度钢板的电阻点焊方法。 解决方案：在高强度钢板的电阻点焊方法中，当叠加的高强度钢板13,14被保持在一对电极11,12之间并且施加压力时进行电阻点焊时 在焊接第一点之后，电极11,12的位置移动，然后在第一点的焊接区域13被冷却到M f 点或更低的温度之后，焊接 以第二点的焊接区域17的一部分重叠在第一点的焊接区域13上的方式进行第二点的处理。 版权所有（C）2010，JPO＆INPIT