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 is subjected to continuous casting and rolling; a heating treatment stage where the aluminum alloy material undergone through the continuous casting and rolling stage is subjected to heating treatment of reducing working strain applied in the continuous casting and rolling stage; a solution treatment stage where the aluminum alloy material undergone through the heating treatment stage is subjected to solution treatment; 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