Based on summing up different kinds of technological process of precision forging of spur gear,a new upsetting extrusion process and pattern die are designed.

• 在总结各种直齿圆柱齿轮精锻工艺的基础上,设计了一种直齿圆柱齿轮镦挤精锻工艺和模具,并进行了实验和上限模拟。