论文部分内容阅读
The advanced high strength steel B pillar was designed to be a tailored blank component which combines tailor welded blanks with tailor rolled blanks.and the formability of the B pillar was studied through the finite element method.Applying new servo flexible stamping can obviously improve the deep drawability of advance high strength steel B pillar,and improve the deepness of B pillar by about 18%.Furthermore.the variable blank holder force curves were optimized.based on the plastic theorv and energy method.