Study on Distribution and Evolution of Deformation Domain of Tailor Rolled Blank in Variable Speed Stamping Process

4th Annual International Workshop on Materials Science and Engineering

Fu, Xiujuan^1 ; Yu, Yuehong^1 ; Zhou, Zhen^1 ; Yang, Shuai^1

School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan

430073, China^1

关键词: Constant speed;    Deformation domain;    Deformation zone;    Production efficiency;    Stamping process;    Tailor rolled blank;    Turning points;    Variable speed;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012061/pdf
DOI  :  10.1088/1757-899X/381/1/012061

来源: IOP

【 摘 要 】

In this paper, in order to research the formability of TRB (Tailor Rolled Blank) in variable speed deep drawing, the numerical model of deep drawing was established. The distribution of deformation domain and the variation of deformation zone with deep drawing depth under constant speed and variable speed were analyzed. The results show that the deformation domain distribution and its evolution at different drawing speeds are similar, but the difference is that a reasonable speed can reduce the strain of key deformation domain effectively, and improve formability and production efficiency. The turning point of the forming speed in variable speed stamping process was determined by analyzing the variation of the node strain in the key deformation domain with drawing depth, the drawing depth at the reasonable speed turning point is the sum of the radius of the punch, the radius of the die and the thickness of the blank. And simulation results were compared to experimental results to verify the correctness of the simulation.