In. Chou et Ch. Hung, FINITE-ELEMENT ANALYSIS AND OPTIMIZATION ON SPRINGBACK REDUCTION, International journal of machine tools & manufacture, 39(3), 1999, pp. 517-536
Several springback reduction techniques used in the U-channel bending
processes were analyzed with the finite element method, which included
are bottoming, pinching die, spanking and movement techniques. The re
lationship between the amount of springback and the forming parameters
in each technique was first established through finite element simula
tions, and then the optimization analysis was coupled with the finite
element analysis to find the optimum forming parameters for each sprin
gback reduction technique. (C) 1998 Elsevier Science Ltd. All rights r
eserved.