Transactions of Materials and Heat Treatment

Title：Study on cold extrusion process of power take-off transmission shaft

Authors： Chen Guiren Wang Leigang Zhang Tailiang Zhang Koubao Wan Yongfu

Unit： Jiangsu University Jiangsu Winner Machinery Co. Ltd.

KeyWords： power take-off transmission shaft pipe-expanding internal spline extrusion

ClassificationCode：TG376.3

year,vol(issue):pagenumber：2015,40(2):98-102

Abstract：

Based on the structural characteristics of the power take-off transmission shaft，multi-pass extrusion technology was designed. The core processes of plastic pipe-expanding and internal spline extrusion were analyzed by the finite element software Deform-3D. The flow regulation of metallic materials and the punch load condition in the forming process were obtained. The orientation angle in front of the punch spline was increased with simulated test for several times, and the orientation angle of 60° was chosen, so that the tear phenomenon of planning-type in the internal spline extrusion process was avoided. The small quantities production of pipe-expanding and internal spline extrusion was carried out by 200 t hydraulic press. The results show that the modified technology program of internal spline extrusion by multiple simulations is feasible. There is no planning-type tear phenomenon and defects such as wrinkles, cracks and so on．The geometry precision reaches grade IT8，and mass production will be possible.

Funds：

江苏省企业研究生工作站项目

陈贵仁（1985-），男，硕士研究生

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