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贾伟涛,乐启炽,唐岩.基于接触摩擦量化作用的镁合金轧制力预报研究[J].稀有金属材料与工程(英文),2017,46(10):2763~2769.[Jia Weitao,Le Qichi and Tang Yan.Prediction for Magnesium Alloy Rolling Force Based on Quantitative study of Contact-friction[J].Rare Metal Materials and Engineering,2017,46(10):2763~2769.]
Prediction for Magnesium Alloy Rolling Force Based on Quantitative study of Contact-friction
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Received:October 12, 2015  Revised:May 17, 2016
DOI:
Key words: rolling process  friction coefficient  rolling force  normal pressure  friction stress
Foundation item:国家自然科学基金、NSFC-山西省煤基低碳联合基金、晋城市科技计划项目
Author NameAffiliation
Jia Weitao,Le Qichi and Tang Yan  
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Abstract:
      Study focused on the magnesium alloy hot rolling process. A method was proposed to determine the friction coefficient in process through the comparative analysis of finite element analysis result and experimental data. Mathematical model for solving the friction coefficient was established, combining with multi-parameters of the rolling process: rolling temperature, rolling speed and reduction rate. Based on calculation model of rolling force and temperature distribution along the contact region in hot rolling of AZ31B magnesium alloy in previous research, rolling force prediction model was optimized and reconstructed considering the normal pressure and friction stress comprehensively. The contact friction stress and its influence on rolling force with an approximate percentage of 4.36% was defined.
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