SPRINGBACK OCCURRENCE CAUSE IDENTIFYING METHOD, SPRINGBACK INFLUENCE DEGREE DISPLAY METHOD, SPRINGBACK OCCURRENCE CAUSE PORTION IDENTIFYING METHOD, SPRINGBACK MEASURE POSITION SPECIFYING METHOD, THEIR DEVICES, AND THEIR PROGRAMS

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.