METHOD FOR ESTIMATING SURFACE SHAPE DEFECT GENERATING REGIONS, METHOD FOR ESTIMATING SURFACE SHAPE DEFECT SOURCE REGIONS, SURFACE SHAPE DEFECT GENERATING REGION ESTIMATING DEVICE, SHAPE DEFECT SOURCE REGION ESTIMATING DEVICE, PROGRAM AND RECORDING MEDIA

摘要

Provided is a method for estimating surface shape defect regions that estimates regions where a surface shape defect will occur in a plastic worked article obtained by plastic working a workpiece. The method for estimating surface shape defect generating regions comprises a step of obtaining a first stress distribution that obtains a first stress distribution σ(T1), a step of obtaining a second stress distribution that obtains a second stress distribution σ(T2), a step of obtaining a comparative stress distribution that obtains a comparative stress distribution σ(T1, T2), a step of obtaining a segmented comparative stress distribution that obtains a segmented comparative stress distribution σDIV(T1, T2) and a step of estimating surface shape defect generating regions that estimates whether or not each segmented region Dk is a region that will generate surface shape defects.