2Hiroshi Koyama, Robert H. Wagoner, Ken - ichi Manabe.Blank holding force control in panel stamping process usinga database and FEM -assisted intelligent press control system [ J ] . Journal of Materials Processing Technology ,2004, 152:190 - 196.
3Ken - ichi Manabe, Hiroshi Koyama, Shoichiro Yoshihara,et al. Development of a combination punch speed and blank - holder fuzzy control system for the deep - drawing process [ J] . Journal of Materials Processing Technology,2002, 125/126:440-445.