Sensitivity Analysis on Effect of Parent Materials Parameter on Formability of Tailor Welded Blank
The parent sheet selection in TWB designing is largely dependant on the effect of parent materials parameters on formability of TWBs. Experiments and FE simulations were performed to study the effect of material parameters of TWBs parent sheets such as t (thickness ratio), k (strength factor of materials), n (strain hardening index), r (anisotropy index) on LDH and weld-line movement of TWB. Orthogonal experiments and range analysis were used to analyze the sensitivity on effect of different parameter on LDH and weld-line movement. The results show that LDH of TWB decreases with increasing ration of stronger sheets parameters to weaker ones, and the rate decreases gradually;in contrary, weld-line movement increases and the increasing rate decreases gradually. Furthermore, different parameters make various contributions to LDH and weld-line movement of TWBs and the effect degree of each parameter changes with different thickness ratios.
Tailor-welded blanks (TWBs) sensitivity analysis Limit dome height (LDH) weld-line movement
Xinyang Tao Jianping Lin Shuisheng Chen
School of Mechanical Engineering, Tongji University NO.4800 Caoan Road, Shanghai, China
国际会议
2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)
洛阳
英文
1177-1183
2010-09-04（万方平台首次上网日期，不代表论文的发表时间）