分析了工艺预冲孔对板料成形状态的影响，并把数值模拟引入工艺预冲孔设置的研究。
The effect of processing pre-punched hole on the forming state of sheets is analyzed. Numerical simulation is applied to the study on processing pre-punched hole setting.
主要讨论板壳成形过程中的结构性问题，探讨板料塑性变形、板内膜力对应力状态和变形状态的作用以及回弹规律。
The effect and resilience rule of the plate's plastic deformation and membrane force on the stress state and deformation state are discussed.
了解冲压件在成形过程中的变形状况及其有关状态参数的数值与分布状况对于工艺设计和模具设计是十分重要的。
Understanding the deformation conditions, the value and distribution of the parameters in press parts during the forming process are very important to the design of technology and dies.
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