Prediction for Magnesium Alloy Rolling Force Based on Quantitative Study of Contact Friction. Issue 10 (October 2017) - Weitao, Jia
Abstract: The magnesium alloy hot rolling process was investigated. A method was proposed to determine the friction factor in the process through the comparative analysis of finite element analysis result and experimental data. Mathematical model for solving the friction factor 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 researches, to the 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.