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Finite Element Analysis of Contact Stress between Rolling Mill Pressure Screw-Pairs Zhengyi Wang 1, a , Lianyun Jiang 1, b and Chunjiang Zhao 1, c 1 College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, China a wang995845@sohu.com, b123jianglianyun@163.com, cZhaoChj75@163.com Keywords: Pressure screw, Stress concentration, Structural parameter, Material parameter, Contact stress Abstract.
The material of the pressure screw is alloy steel with high degree of hardness, and its elastic modulus is 206Gpa, and the Poisson's ratio is 0.3.
The material of the pressure mutter is wear-resisting and soft copper, and its elastic modulus is 103Gpa, and the Poisson's ratio is 0.3.
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Machining technology and cutting regimes, as well as the material of the tool being used, all have a direct impact on the surface texture and consequently on the quality of the repair as a whole.
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Acknowledgements This paper was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences.
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Acknowledgement This work is supported by project of science and technology of Tianjin science committee (13ZCZDGX01108)and Tianjin University & Education Foundation ( KJY1306).
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