JOINING METHOD OF HEAT TREATING TYPE ALUMINUM ALLOY MATERIAL AND JOINING MATERIAL FOR PRESS FORMING

摘要

PROBLEM TO BE SOLVED: To provide a joining technology of a heat treating type aluminum alloy material, a method that advantageously enhances joining strength and press formability of a joining material.

SOLUTION: A joined body 34 is obtained by performing friction stir welding on the heat treating type aluminum alloy materials 12, 14, on which cold working is previously applied to make the entire metallic structure a cold working structure with transposition present highly densely. Thereafter, a solution heat treatment and quenching are carried out on the joined body 34 thus obtained.

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