CPC B23K 26/244 (2015.10) [B23K 26/323 (2015.10)] | 5 Claims |
1. A joining structure, comprising:
a first member formed of a metal material;
a second member formed of a metal material of a same type as that of the first member which can be welded to the first member; and
a third member formed of a material that is difficult to weld to the first member and the second member,
the first member, the second member, and the third member being jointed to each other, wherein
at least one of the first member and the second member includes a protrusion,
a through portion in which the protrusion is inserted is formed in the third member,
the first member and the second member are welded to each other via the through portion with the third member interposed therebetween in a region corresponding to the protrusion, and
an entire outer peripheral portion of an overlapping portion of the first member and the third member is welded, and an entire outer peripheral portion of an overlapping portion of the second member and the third member is welded.
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