基于DEFORM的直齿圆柱齿轮精锻工艺  

Precision forging process for spur gear based on DEFORM

作　　者：卜军伟 蔡云 Bu Junwei;Cai Yun(Department of Automotive Engineering,Sichuan Vocational and Technical College of Communications,Chengdu 611130,China;School of Automobile and Transportation,Xihua University,Chengdu 610039,China)

机构地区：[1]四川交通职业技术学院汽车工程系,四川成都611130 [2]西华大学汽车与交通学院,四川成都610039

出　　处：《锻压技术》2021年第11期43-48,共6页Forging & Stamping Technology

基　　金：四川省教育厅科研项目(14ZA0358)。

摘　　要：为了节约成本、提高材料的利用率、提高产品的质量及生产效率,无飞边模锻工艺的应用越来越广泛,但不免遇到模具承受载荷过大、寿命低的问题。以某直齿圆柱齿轮为研究对象,采用DEFORM-3D软件对其模锻成形过程进行数值模拟,并针对成形力大、模具寿命低的问题,在原工艺基础上提出了采用浮动凹模及孔分流法两种改进工艺,分别分析了锻件的成形规律及模具载荷变化情况。结果表明:改进后的工艺有利于降低模具载荷、提高模具的使用寿命;采用浮动凹模工艺,模具载荷可以降低10%;采用孔分流工艺,模具载荷可以降低25%。In order to save costs, improve the utilization rate of materials, and improve the quality and production efficiency of products, the application of non-flanging die forging process is more and more widely used, but it is inevitable to encounter the problems of excessive load and low mold life. Therefore, for a spur gear, its die forging process was simulated by software DEFORM-3 D. Aiming at the problems of large forming force and low mold life, on the basis of the original process, two improved processes, namely floating die and hole split method, were proposed, and the forming laws of forgings and the changes of mold load were analyzed respectively. The results show that the improved process is beneficial to reduce the mold load and prolong the service life of mold, and by adopting the floating die and hole split processes, the mold load is reduced by 10% and 25%, respectively.

关 键 词：直齿圆柱齿轮 无飞边模锻 浮动凹模 模具载荷 模具寿命 孔分流法 

分 类 号：TG316.3[金属学及工艺—金属压力加工]