3HUANG Youmin, CHEN Tsungchia. Influence of blank profile on the V-die bending camber process of sheet metal[J]. International Journal of Advanced Manufacturing Technology, 2005, (25):668-667.
4CHAN W M, CHEW H I.. Finite element analysis of spring-back of V-bending sheet metal forming processes [J]. Journal of Materials Processing Technology, 2004, (148): 15-24.