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 springback occurrence cause identifying method comprising a press-forming analyzing step of numerically analyzing the press-forming condition of press forming and acquiring forming data on a press-formed product, a computing step of computing at least one item of data on the physical properties and physical quantities of a partial region of the press-formed product out of the forming data, and a springback amount calculating step of calculating the amount of springback by using the results of the computation.