Deformation simulation of low-temperature high-speed extrusion for 6063 Al alloy |
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Authors: | Meng-jun Wang Zhao He Xing-xing Wu Cai-wen Li Guang-yao Li |
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Affiliation: | (1) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China;(2) Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands; |
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Abstract: | The hot compression test of 6063 Al alloy was performed on a Gleeble-1500 thermo-simulation machine, and the forming of 6063 rod extrudate in low-temperature high-speed extrusion was simulated with extrusion ratio of 25 on the platform of DEFORM 2D successfully. From the compression experimental results, the flow stress model of this Al alloy is obtained which could be the constitutive equation in the simulation of low-temperature high-speed extrusion process. From the numerical simulation results, there is a higher strain concentration at the entrance of the die and the exit temperature reaches up to 522 °C in low-temperature high-speed extrusion, which approaches to the quenching temperature of the 6063 Al alloy. The results show that the low-temperature high-speed extrusion method as a promsing one can reduce energy consumption effectively. |
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Keywords: | 6063 Al alloy hot deformation low-temperature high-speed extrusion constitutive equation numerical simulation |
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