Transactions of Materials and Heat Treatment

Title：Cold extrusion process for clutch outer gear hub

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ClassificationCode：TG376

year,vol(issue):pagenumber：2020,45(1):103-108

Abstract：

For the technical difficulties in the internal spline forming, the structural characteristics of the clutch outer gear hub of a certain automobile were analyzed, and the cold extrusion process scheme was proposed. Then, the cold extrusion process of the clutch outer gear hub was numerically simulated by finite element software DEFORM-3D, and the influences of half-angle of input die, wall thickness of blank and friction coefficient on the forming load and forming quality were studied. The results show that the rounded corner of internal spline in the clutch outer gear hub is full filled and the forming load is relatively small with the half angle of input die of 45°, the wall thickness of blank of 6.0 mm and the friction coefficient of 0.12. Furthermore, the experiment was conducted by the cold extrusion process of the clutch outer gear hub, and it proves the feasibility of the process scheme and the correctness of the numerical simulation results.

Funds：

重庆市科委资助项目(cstc2014yykfA60001)；重庆市教委科学技术研究资助项目(KJ1400944)

作者简介：刘左发(1994-)，男，硕士研究生 E-mail：1435339872@qq.com 通讯作者：冯文杰(1964-)，男，硕士，教授 E-mail：wjfeng@cqut.edu.cn

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