In the die design, the use of spherical punch made the process of deep drawing and reverse redrawing achieved in one set of mold and common hydraulic press.
2
拉深工序是汽车覆盖件成形的关键工序，拉深工序件的设计是覆盖件模具设计的一个瓶颈环节。
The drawing process is a key process of stamping forming for autobody panels, and the design of drawn parts is a bottleneck procedure to die design of panels.
3
为提高拉深件设计效率，降低模具设计开发成本提供了有效的方法和手段。
This research works provided an effective method and measure for deep drawing parts and die design and further reduced the cost of die design.
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