列出了确定极限拉伸系数的快速方法。
The express-method of the limit drawing ratio evaluation is presented.
模具拉伸系数是设计拉伸工艺的关键参数。
The cupping ductility value is a key parameter to design traction process of mould.
总结了由此而引起的在极限拉伸系数和最大相对拉伸高度状态下，工业化规模生产的实践经验和有关数据的验证。
It summarized the practice experience and validating of relate data that are about manufacturing under terminal stretching coefficient and maximum relatively stretching height.
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