VBHF mechanism 变压边力机构
The simulation test results obviously showed that VBHF had great effects to drawing formability of hot-galvanized sheet steel during the rectangular box drawing.
变压边力数值模拟试验结果表明，采用变压边力控制矩形件拉深成形过程时，变压边力对矩形件拉深成形特性影响显著。
The forming of box with TWBs based on a series of linearly increasing and decreasing variable blank holding forces(VBHF)over the stroke were studied by means of dynamic explicit finite element method.
应用动力显式数值模拟软件，研究了线性渐增和渐减变压边力下拼焊板盒形件的成形过程。建立了线性变压边力终止值随初始值变化的关系曲线，该曲线被拟合为二阶多项式曲线。
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