METHOD FOR PRODUCING PLASTIC-WORKED MEMBER

摘要

PROBLEM TO BE SOLVED: To suppress the generation of cracks and wrinkles on the surface when an aluminum alloy material produced by a continuous casting and rolling process is subjected to plastic working such as press working and forging. SOLUTION: The method for producing a plastic-worked member 10 using an aluminum alloy material comprises: a continuous casting and rolling stage where an aluminum alloy material to which chromium is not added is subjected to continuous casting and rolling; a solution treatment stage where the aluminum alloy material undergone through the continuous casting and rolling stage is subjected to solution treatment to a recrystallization temperature or above; a plastic working stage where the aluminum alloy material undergone through the solution treatment stage is subjected to plastic working; and an aging treatment stage where the aluminum alloy material undergone through the plastic working stage is subjected to aging treatment. COPYRIGHT: (C)2009,JPO&INPIT