METHOD FOR FORGING ALUMINUM ALLOY

摘要

PROBLEM TO BE SOLVED: To manufacture aluminum-alloy forged products having a large camber and three-dimensionally complicated shape without including a black scale and at high yield. SOLUTION: The forged article (e) of the final product is obtained by carrying out forging/forming (c), (d) by using a die having the shape of the final product after taking a sliced material (a) of an aluminum-alloy semicontinuous cast body designed into an approximate shape to a shape projecting a cross section in the direction of operation of a forging press of the final product as a base stock and forging (b) so as to impart the deformation of a camber equivalent to≥30% of the final product in the first stage of forging. COPYRIGHT: (C)2004,JPO