The Effect of Anisotropy on Spring-Back of CK67 Steel Sheet in L-Dies Bending Processes
One of the most sensitive features of sheet metal forming processes is the elastic recovery during unloading, called spring-back, which leads to some geometric changes in the product. This phenomenon will affect bend angle and bend curvature, and can be influenced by various factors. In this research, the effects of sheet thickness and die radiuses an sheet anisotropy on spring-back in L-die bending of CK67 steel sheet were studied by experiments and numerical simulations.
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
J. Bazrafshan et al., "The Effect of Anisotropy on Spring-Back of CK67 Steel Sheet in L-Dies Bending Processes", Advanced Materials Research, Vols. 291-294, pp. 672-675, 2011