极限拉深系数是指在一定的坯料直径下，所能拉深出的最小直径，小于这个直径将产生破裂。
...极限拉深系数；UG 的二次开发；MFC [gap=549]Key words：the fuzzy synthetical evaluation theory；the limit drawing coefficient；the secondary development of UG；MFC ..
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The limiting drawing rate is a very important index of blank’s pressing capability, and it is the basic reference deciding to drawing pressing technology.
坯料的极限拉深系数是一种重要的冲压性能指标，它是决定拉深工艺方法的基本依据。
参考来源 - 基于BP神经网络的筒形件拉深成形极限的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
因此，进行圆筒件极限拉深系数的优化设计十分必要。
Thus, the optimization design for the limiting drawing parameter of the cup-drawing process is very necessary.
通过拉深工艺试验证明该曲面凹模可以达到很小的极限拉深系数。
And it is proved that it can reach smaller limit drawing ratio by the deep drawing experiments.
坯料的极限拉深系数是一种重要的冲压性能指标，它是决定拉深工艺方法的基本依据。
The limiting drawing rate is a very important index of blank's pressing capability, and it is the basic reference deciding to drawing pressing technology.
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