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 OCCURENCE 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 occurrenceof springback comprising a press forming analysis step ofnumerically analyzing forming conditions of press formingto obtain forming data of a press formed part, aprocessing step of processing at least one of a physicalproperty value and physical property quantity data ofpart of the regions of said press formed part amongforming data of said press formed part, and a springbackvalue calculation step of calculating a springback valuebased on the results of said processing.