STRUCTURAL MEMBER MADE OF DIFFERENT MATERIALS

摘要

A structural member made of different materials does not have a different material bonding portion between an aluminum alloy material and a steel material which are to be combined. The structural member made of steel and the aluminum alloy is composed of a first structural member composed of steel, and a second structural member wherein a portion made of steel and a portion made of the aluminum alloy are bonded by different material bonding. The first structural member and the second structural member are bonded only by bonding between steel, i.e., bonding between the steel portion of the second structural member and the first structural member.