Honda Motor Co., Ltd.
IRON ALLOY MANUFACTURING METHOD

Abstract:

An iron alloy manufacturing method which can suppress occurrence of distortion and crack in formed iron alloy layers is provided. During execution of a forming step, in a first temperature control step, an iron alloy layer temperature T1 of a predetermined number of laminated layers from a surface layer of iron alloy layers formed in the forming step is controlled to be kept within a range of Ms.ltoreq.T1.ltoreq.Ms+.alpha., and in a second temperature control step, a base plate temperature T2 is controlled to be kept within a range of Mf-.beta..ltoreq.T2.ltoreq.Mf.