Predict the possible defects of production by simulation, and suggest an improved plan of the precise forming technology according to metal flow law during forming.

通过模拟预测产品可能产生的缺陷，根据金属在成形过程中的流动规律，提出了一种改进的精密成形工艺方案。

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Metal flow of lead screw cold roll-beating process is analyzed, and metal flow's law of minimum resistance is verified.

分析了丝杠冷滚打过程中金属的流向，验证了金属流动最小阻力定律。

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