Prediction Method for Hot Working Condition and Non-Transitory Computer Readable Medium

Abstract

The object of the present invention is to provide a prediction method capable of highly accurately predicting a hot working condition under which cracks occur and suppressing the occurrence of cracks in actual hot working. Provided is a prediction method for a hot working condition for predicting a hot working condition of a material subjected to hot working having a decarburization layer on a surface layer, comprising: a hot working property acquisition process of acquiring a hot working property at a part of a two-phase region of ferrite+austenite in the decarburization layer formed on the surface layer of the material subjected to hot working; a first analysis process of performing a plastic deformation analysis by simulation using the acquired hot working property as an input value and deriving a fracture threshold; a second analysis process of performing a plastic working analysis by simulation simulating actual hot working and deriving a fracture parameter corresponding to an amount of deformation of a material subjected to hot working; and a working condition derivation process of deriving a working condition threshold at a time of performing hot working in an actual machine based on the fracture threshold and the fracture parameter.

Dependencies are inferred from the claim text.