1 Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093; 2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
Abstract: The warm stretching process of U-sharped AZ31 magnesium profile with thin wall was simulated by 3D thermo-mechanically coupled finite element model. Variation of temperature filed and stress filed were simulated in four different temperature model. The mould preheating, temperature filed homogenization and the follow-up heating improved efficiency of bending were simulated. Results showed that ten seconds preheating time was significant, heat exchange could be decreased by follow-up heating and temperature field homogenization. Stable temperature field is investigated to apply in warm tension rotation bending of AZ31 magnesium alloy profile in this paper.
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2017, Vol. 31 
