螺母是工业、机械、电气等领域广泛使用的结构零件,用量大,使用范围非常广泛。传统的切削加工方法不但浪费材料效率低,而且破坏了金属原有的流线,使得螺母容易产生应力集中,可能导致提前失效,威胁到生产安全。相比较而言,冷挤压成形节材降耗,而且零件性能更优,寿命更长。本文通过数值模拟仿真了一种螺母的挤压成形过程,结果满足性能要求。 Nut is widely used in industrial, mechanical, electrical and other fields of structural parts, the amount of large, the use of a very wide range. The traditional method of cutting not only wastes the material inefficiency but also destroys the metal’s original streamline, which makes the nut easy to produce stress concentration, which may lead to early failure and threaten the production safety. In contrast, cold extrusion forming section consumption, and better parts performance, longer life expectancy. In this paper, a numerical simulation of a nut extrusion process, the results meet the performance requirements.