拉深是利用拉深模使平面板料变为开口空心件的冲压工序，又称拉延。拉深可以制成简形、阶梯形、球形及其他复杂形状的薄壁零件。
Drawbead application is an effect method in sheet metal deep-drawing process to control material flow.
设置拉延筋是板料拉深成形过程中控制材料流动的有效方法。
参考来源 - 板料冲压成形数值模拟中等效拉延筋模型的建立与实现 Establishment and implementation of equivalent drawbead model in sheet metal forming numerical simulation·2,447,543篇论文数据，部分数据来源于NoteExpress
本文介绍了汽车覆盖件模具设计中拉延模与修边模的设计。
This paper introduces the drawing die and the fixing side die of automobiles covering parts.
对CA151型汽车制动鼓挡油盘拉延成型工艺进行了探讨。
Drawing process for shaping the brake drum oil shield of truck CA151 has been deliberated.
但对成形量小的浅拉延件，传统的圆网格法已不能满足要求。
Nevertheless, traditional circular grid method is no longer applicable for shallow stretching components with small forming capacity.
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