WELDING STRUCTURE AND WELDING METHOD USING THREE POSITIONING PORTIONS

摘要

A welding structure includes a sheet - shaped first part to be welded (11); a sheet- shaped second part to be welded that is positioned with respect to the first part to be welded (11) by engaging with the first part to be welded (11), to perform welding; and a first positioning portion (10a), a second positioning portion (10b), and a third positioning portion (10c), at which the first and second parts to be welded (11) engage with each other. The first to third positioning portions (10a- 10c) are each configured to restrict movement of one of the first (11) and second parts to be welded in a positioning direction, with respect to the other, and enable movement of the one in a movable direction perpendicular to the positioning direction, with respect to the other. The movable direction of each of the first and second positioning portions (10a, 10b) is the same direction as the positioning direction of the third positioning portion (10c).