Elastic rubber method and rigid blank holders were used to apply blankholderforce with different methods.
对压边力的控制采用了弹性橡胶控制法和刚性直接控制法。
2
Using variable blankholderforce can remarkably improve the forming performance, and the limiting drawing ratio would reach 5.0.
采用变压边力可以明显提高板材的冲压性能,极限拉深比将达到5.0。
3
The function of the blankholderforce (BHF) as well as its influence on the forming performance and forming accuracy of combined stepped-hole were analyzed.