Simulation of earing in cup deep drawing process based on rate-dependent crystal plasticity

摘要：

Rate-dependent crystal plasticity (RDCP) can forecast earing well in cup deep drawing process by describing dislocation slip of blank. However, simulations based on RDCP are too expensive due to low efficiency of RDCP. Herein, a self-developed efficient explicit model of RDCP was adopted. Based on this model, 3D-FE simulations of cup drawing process are performed under the environment of ABAQUS/Explicit. The reliability of this model and the simulation results are verified by the comparison to others experiment and simulation results. The difference in height between earing and trough increases with the increase of rate sensitivity coefficient of material (m), drawing speed (v), die clearance (δt) and friction coefficient (μ). The position of the maximal ear and the number of ears changing with m, v, and μ were investigated further.

关键词： Earing Crystal plasticity Cup drawing process Finite element simulation

作者: Hongwei LI He YANG Zhichao SUN

作者单位: School of Materials Science and Engineering, Northwestern Polytechnical University,P.O.Box 542, Xi’an, Shaanxi, 710072 P.R.China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）