重庆大学学报：自然科学版2011，Vol.34Issue(7)：46-50,5.
两道次板材渐进成形过程仿真与实验验证
Numerical simulation and experimental investigation of double-stage sheet incremental forming
摘要
Abstract
In order to find a method to reduce excessive sheet thinning in the forming process of small half-apex angle parts by incremental sheet forming,a finite element model（FEM） for simulating double-stage process is developed in ABAQUS.Then,the simulation results,such as sheet thickness distribution and equivalent plastic strain history,are compared with those of single-stage simulation.The effects of double-stage on formability of sheet are discussed.The results show that using double-stage process instead of single-stage in forming parts,the maximum deformation is nearer to the parts＇ bottom surface,and the maximum equivalent plastic strain of node A,B,C is reduced by 66.2%,81.9% and 36.0% respectively.The sheet thickness is better distributed,and the minimum thickness increases by 16%.In addition,double-stage incremental forming can greatly improve the formability of sheet.The simulation results are in a good agreement with experimental results.关键词
两道次渐进成形/板材成形/成形性能/工具轨迹Key words
double-stage incremental forming/sheet forming/formability/tool path分类
矿业与冶金引用本文复制引用
周杰,胡建标,张旭,李军超..两道次板材渐进成形过程仿真与实验验证[J].重庆大学学报：自然科学版,2011,34(7):46-50,5.基金项目
重庆市自然科学基金重点资助项目 （）
