Shape defect cause analysis method, shape defect correction method, shape defect occurrence cause analyzer, program and recording medium for analyzing shape defect occurrence cause

摘要

PROBLEM TO BE SOLVED: To analyze a shape defect occurrence cause analysis method, a shape defect correction method, a shape defect occurrence cause analysis device, and a shape defect occurrence cause capable of identifying a portion which is a main cause of shape defect of a press-formed product by a hot stamping method. Provide programs and recording media for this purpose. SOLUTION: This is a method for analyzing the cause of shape defects in a press-formed product, which includes a press molding analysis process, a mold cooling analysis process, a first stress value calculation process, a first shape defect value calculation process, and parameter changes. Shape defect occurrence characterized by including a process, a second stress value calculation process, a second shape defect value calculation process, a shape defect value comparison process, a difference value calculation process, and a shape defect factor identification process. Cause analysis method. [Selection diagram] Fig. 1