METHOD FOR BONDING DISSIMILAR MATERIALS

摘要

Provided is a method for bonding dissimilar materials that stably ensures high bonding strength, even when overlapping and welding a steel member on the top and an aluminum member on the bottom in the direction of welding. In this method, when overlapping and welding the steel member (2) on the top and the aluminum member (3) on the bottom in the direction of welding (4), the materials are welded with the position of the welded surface (3a) of the aluminum member at least along a welding line (5) protruding in the direction of welding (4) above the position of the welded surface (2a) of the steel member, and a bead (6) is formed from the aluminum welding material across the welded surfaces of the steel member (2) and the aluminum member (3).