Deformation mechanism and performance improvement of spline shaft with 42CrMo steel by axial-infeed incremental rolling process

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• 作者：Min-Chao Cui ; Sheng-Dun Zhao ; Da-Wei Zhang…
• 关键词：Spline shaft ; Axial ; infeed incremental rolling process ; 42CrMo ; Deformation mechanism ; FEM ; Experiment
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：88
• 期：9-12
• 页码：2621-2630
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design;
• 出版者：Springer London
• ISSN：1433-3015
• 卷排序：88

文摘

In this paper, a novel axial-infeed incremental rolling process of spline shaft with 42CrMo steel is proposed to solve the problems of present manufacture process. The principle of the axial-infeed incremental rolling process is introduced firstly, and then the deformation mechanism is analyzed by finite element method (FEM). The numerical results show that the deformation and material flow during the novel process only occurs in the surface layer of the blank, and the metal flow velocity component along the radial direction is significantly higher than that along the axial direction. Next, the experimental research is carried out on axial-infeed incremental rolling equipment, and the microstructure and hardness of the products are evaluated. The experimental results show that the microstructure in the surface of tooth profile, and root is fibrous tissue which is continuous, dense, and streamlined, and the hardness of the tooth profile and root area obviously increases.