Friction stir spot welding structure
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Nov 27, 2015
filing date -
Dec 26, 2014
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Abstract
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.
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