Abstract
In the deep drawing, the low blank holder force (BHF) will cause the wrinkle, while the high BHF will result in the tearing. Therefore it is important to determine the appropriate BHF in the forming. In this paper, the variable blank holder force (VBHF) approach for the deep drawing is employed. The simple closed-type algorithm is developed to obtain the VBHF trajectory. The validity is examined through the numerical simulation and experiment.
