RESISTANCE WELDING STRUCTURE, RESISTANCE WELDING METHOD, MEMBER TO BE WELDED, AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a resistance welding structure and a resistance welding method, which can impart an appropriate pressure and heat to a joint portion and can generate a highly reliable welded portion, and to provide a welded member and a manufacturing method thereof suitable for implementation of the resistance welding structure and the resistance welding method.SOLUTION: 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 the recess 2. Defining D2 as the plate thickness of the member 1 in the recess 2 and 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