FRICTION WELDING METHOD FOR STEEL AND ALUMINUM ALLOY

摘要

PROBLEM TO BE SOLVED: To provide a friction welding method for steel and an aluminum alloy by which an improved high strength can be obtained in the friction welding for a hollow member of steel and another hollow member of an age-hardening aluminum alloy.;SOLUTION: In the method where the edge faces of the hollow members are butted, and the edge faces are welded by friction welding, the aluminum alloy is the age-hardening alloy of Al-Cu-Mg base, Al-Si-Mg base or Al-Zn-Mg base subjected to artificial aging treatment, and the artificial aging treatment heating within the temperature range of 100 to 200°C is performed again after performing the friction welding.;COPYRIGHT: (C)2008,JPO&INPIT