METHOD OF IDENTIFICATION OF CAUSE OF OCCURRENCE OF SPRINGBACK, METHOD OF DISPLAY OF DEGREE OF EFFECT OF SPRINGBACK, METHOD OF IDENTIFICATION OF LOCATION OF CAUSE OF OCCURRENCE OF SPRINGBACK, METHOD OF IDENTIFICATION OF POSITION OF MEASURE AGAINST SPRINGBACK, APPARATUSES OF THESE, AND PROGRAMS OF THESE

摘要

A method of identification of a cause of occurrence of springback comprising a press forming analysis step of numerically analyzing forming conditions of press forming to obtain forming data of a press formed part, a processing step of processing at least one of a physical property value and physical property quantity data of part of the regions of said press formed part among forming data of said press formed part, and a springback value calculation step of calculating a springback value based on the results of said processing.