The Study of Parameters on CK67 Steel Sheet Spring-Back 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 on spring-back in L-die bending of CK67 and St 14 steel sheet were studied by experiments and numerical simulations.
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
J. Bazrafshan et al., "The Study of Parameters on CK67 Steel Sheet Spring-Back in L-Dies Bending Processes", Advanced Materials Research, Vols. 189-193, pp. 2788-2791, 2011