Friction stir spot welding structure

摘要

A friction stir spot welding structure includes a pair configured of an upper side flange portion and a lower side flange portion that are friction stir spot welded together by being pressed by a rotating pin rotating from one thickness direction side at a mutually overlapping location. A pair of protruding portions that project out in a protruding shape from the upper side flange portion toward the lower side flange portion are formed to the upper side flange portion. A pair of engagement holes into which the pair of protruding portions are inserted are formed to the lower side flange portion.

主权项

1. A friction stir spot welding structure comprising:
a pair of panel members that are friction stir spot welded together by being pressed from one thickness direction side by a rotating pin rotating at a mutually overlapping location; and a rotation restricting section that restricts relative rotation of the pair of panel members about a rotation axis of the rotating pin, wherein the rotation restricting section includes:
a first engagement portion that is formed at one of the panel members of the pair of panel members and that projects out from the one panel member toward the other panel member; anda second engagement portion that is formed at the other panel member of the pair of panel members and that engages with the first engagement portion in a rotation direction of the rotating pin, and wherein:
the first engagement portion includes a protruding portion that is formed at one panel member of the pair of panel members and that projects in a protruding shape from the one panel member toward the other panel member; andthe second engagement portion includes an engagement hole that is formed at the other panel member of the pair of panel members and into which the protruding portion is inserted.