• 收口 - 引用次数：2

  The hot forming process of cannonball body semiproduct is mainly composed of four operations: pressing, punching, ironing, and shell nosing.

  炮弹弹体毛坯热精密成形过程主要由压型、冲孔、引伸和收口四道工序组成。

  参考来源 - 炮弹弹体毛坯精密热成形数值模拟仿真与试验研究

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