| 摘要 |
PROBLEM TO BE SOLVED: To provide a fusion welding method by which a formation of an intermetallic compound is minimized and a welded part having both of large shearing strength and tearing strength is given in a joining of different materials, and a structure constructed by the method. SOLUTION: In a fusion welding method where different materials which form an intermetallic compound by being fused together are welded, a process where a first member 1 forming a butted part and a lapped part at a joining part and a second member 2 whose melting point is higher than that of the first member are combined, arid a process where a butt welding and a lap welding are executed by fusing the side of the second member, fusing only the joining part of the first member side by a heat conduction from the second member side as for the joining part of a butted part 3 and a lapped part 4, thus the joining part of the second member side is substantially not fused, are provided.
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