RESISTANCE WELDED STRUCTURE, RESISTANCE WELDING METHOD, WELDED MEMBER AND MANUFACTURING METHOD THEREOF

WIPO Patent Application WO/2011/125649

A1

Disclosed are a resistance welding structure and resistance welding method which, capable of imparting an appropriate pressure and heat to a joint region, can generate a reliable weld area; further disclosed are a welded member and a manufacturing method thereof suitable for implementation of said resistance welding structure and resistance welding method. A recess (2) is formed in one surface of a member (1) formed from a metal plate, and a projection is formed on the bottom surface or back surface of said recess (2). Defining D2 as the plate thickness of the member (1) in the recess (2) around the projection (3), and D3 as the plate thickness of the member (1) outside of the recess (2), the member to be welded (1A) is configured such that the plate thicknesses satisfy the relation D2