Research on extrusion forming process of 25CrMo<sub>4</sub> automotive spline shaft part based on Deform

JI Wenjun; GONG Hongying; LAN Yi; MA Ji; LIAO Zehuan

doi:10.12299/jsues.24-0272

Volume 39 Issue 2

Jun. 2025

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Article Navigation > Journal of Shanghai University of Engineering Science > 2025 > 39(2): 181-186

JI Wenjun, GONG Hongying, LAN Yi, MA Ji, LIAO Zehuan. Research on extrusion forming process of 25CrMo4 automotive spline shaft part based on Deform[J]. Journal of Shanghai University of Engineering Science, 2025, 39(2): 181-186. doi: 10.12299/jsues.24-0272

Citation:

JI Wenjun, GONG Hongying, LAN Yi, MA Ji, LIAO Zehuan. Research on extrusion forming process of 25CrMo₄ automotive spline shaft part based on Deform[J]. Journal of Shanghai University of Engineering Science, 2025, 39(2): 181-186. doi: 10.12299/jsues.24-0272

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Research on extrusion forming process of 25CrMo₄ automotive spline shaft part based on Deform

doi: 10.12299/jsues.24-0272

1.
School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2.
Shanghai Dongfu Cold Forging Manufacturing Co., Ltd., Shanghai 201100, China

Received Date: 2024-09-15
Available Online: 2025-09-30
Publish Date: 2025-06-30

Abstract

Abstract

A systematic study on the extrusion process of automotive shaft parts with complex external splines was carried out. Firstly, the characterisation of the parts were analyzed. Three process parameters of extrusion speed, friction coefficient and billet taper angle were selected using Deform software, and orthogonal simulation tests were performed. The optimal process parameters determined using the range analysis method were as follows: punch extrusion speed of 20 mm/s, friction coefficient of 0.12, and billet taper angle of 15°. The results indicate that the maximum extrusion load and the minimum damage value obtained under these optimized conditions. Compared with the pre-optimisation process, the extrusion load was reduced by 26.3%, and the damage value was reduced by 81.4%.
- spline shaft part,
- cold extrusion,
- orthogonal simulation test,
- Deform software

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References(15)

References

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