Abstract
In this paper, influence of temperature on warm temperature equal channel angular of AZ31 alloy was investigated by using numerical simulation and experimental investigation. The effective stress distribution rules and load-stroke curves viartions were obtained at different temperature. And the distribution of effective strain and the rules of deformation uniformity of three temperatures extrusion processing for round workpiece are obtained. The proper temperatures extrusion processing is acquired through comparing the results of three extrusion routes. The effect of the temperature on the accelerated grain refining during the ECAE operation was discussed in the numerical calculations with a view to the use of the process to bulk AZ31 alloys. On the basis of the simulations, the warm ECAE experiments are carried out. The geometries of finally pressed workpieces of the different temperature pressed samples are in good agreement with finite element analysis results．
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