5Kwak T S, Kim Y J, Seo M K, et al. The effect of V - ring indenter on the sheared surface in the fine - blanking process of pawl [ J ]. Journal of Ma- terials Processing Technology, 2003 (143/144) :656 - 661.
6Du H, Li F, Zhang H. Comparative analysis the stainless steel surface structure on fine - blanking with negative clearance and common blanking [J]. Applied Mechanics and Materials, 2012,229 -231 : 105 -108.
7Zhang Z M, Li F, Zhang H. Study and analysis the facture mechanism for fine - blanking with negative clearance on 60Mn [ J ]. Applied Me- chanics and Materials, 2012,229 - 231 : 91 - 9d.
8Shim K H, Lee S K, Kang B S, et al. Investigation on blanking of thin sheet metal using the ductile fracture criterion and its experimental verifi- cation [ J]. Journal of Materials Processing Technology, 2004, 155/ 156:1935 - 1942.
9Dae - Cheol Ko, Byung - Min Kim, Jae -Chan Choi. Finite - element simulation of the shear process using the dement - kill method [ J ]. Journal of Materials Processing Technology, 1997,72 : 129 - 140.
10Fan W F, Li F. Comparative Study on Experiment and Simulation of Fine - Blanking with Negative Clearance for AISI - 410 and QCr0.5 [ J]. Computational and Theoretical Nanoscience, 2012(9) : 1 -5.