Transactions of Materials and Heat Treatment

Title：Investigation on cold extrusion of drive gear

Authors： Cai Danyun Ding Mingming Chen Lei

Unit： Zhejiang University of Water Resources and Electric Power Hangzhou Dianzi University

KeyWords： drive gear cold extrusion numerical simulation

ClassificationCode：TG376

year,vol(issue):pagenumber：2015,40(6):55-59

Abstract：

The cold extrusion forming process characteristics of drive gear were analyzed, and the forming method of extrusion the gear and the internal spline at the same time was determined. The extrusion process of driver gear was simulated by the simulation software Deform-3D. The influences of blank diameter and die entrance angle on cold extrusion process of drive gear were obtained. The result shows that when the external diameter of blank is about 2 mm larger than that of the addendum circle, the internal diameter of blank is the minor diameter of the spline, and the die entrance angle is 50°, with good teeth shape of the gear and internal spline and the relatively small forming force. The optimization parameters in simulation are applied in the extrusion process test, so driving gear parts that meet its precision requirement are produced.

Funds：

浙江省科技厅公益技术研究工业项目（2014c31112）；浙江省教育厅科研项目（Y201329634）；浙江省科技厅公益技术研究工业项目（2014C31092）

蔡丹云（1975-）女，硕士，讲师

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