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Surface shape defect occurrence area estimation method, surface shape defect cause area estimation method, surface shape defect occurrence area estimation apparatus, surface shape defect cause area estimation apparatus, program, and recording medium
Surface shape defect occurrence area estimation method, surface shape defect cause area estimation method, surface shape defect occurrence area estimation apparatus, surface shape defect cause area estimation apparatus, program, and recording medium
This surface shape defect occurrence region estimation method is a surface shape defect occurrence region estimation method for estimating a surface shape defect occurrence region of a plastic workpiece obtained by plastic processing of a workpiece, and includes a first stress distribution σ ( A first stress distribution acquisition step for acquiring T1), a second stress distribution acquisition step for acquiring second stress distribution σ (T2), a comparative stress distribution acquisition step for acquiring comparative stress distribution σ (T1, T2), A divided comparative stress distribution acquisition step for acquiring the divided comparative stress distribution σDIV (T1, T2), a surface shape defect occurrence region estimation step for estimating whether or not each of the divided regions Dk is a surface shape defect occurrence region, Is provided.
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