| Non-steady FE analysis on porthole dies extrusion of aluminum harmonica-shaped tube |
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| 作者姓名： | 程磊 谢水生 黄国杰 吴朋越 和优锋 |
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| 作者单位： | State Key Laboratory for Fabrication and Process of Nonferrous Metals,General Research Institute for Nonferrous Metals, Beijing 100088, China |
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| 基金项目： | Project（50674017） supported by the National Natural Science Foundation of China |
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| 摘 要： |
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| 关 键 词： | 舷窗 热力学 FE分析技术 铝合金 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Non-steady FE analysis on porthole dies extrusion of aluminum harmonica-shaped tube |
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| CHENG Lei, XIE Shui-sheng, HUANG Guo-jie, WU Peng-yue, HE You-feng.Non-steady FE analysis on porthole dies extrusion of aluminum harmonica-shaped tube[J].Transactions of Nonferrous Metals Society of China,2007,17(A01):32-36. |
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| Authors: | CHENG Lei XIE Shui-sheng HUANG Guo-jie WU Peng-yue HE You-feng |
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| Abstract: | According to the rigid-viscoplasticity finite element method, the porthole die extrusion process of an aluminum harmonica-shaped tube was successfully simulated based on software Deform-3D. The distribution of stress field, effective strain field, velocity field and temperature field during the extrusion process were discussed and the metal flow in welding extrusion was analyzed. The simulation results show that the material flow velocities in the bearing exit are non-uniform with the originally designed die and the forepart of the profile is not neat or even. Aiming at solving this problem, the modification method of die structure was improved. The result shows that the uniform material flow velocities in the die exit and a perfect extruded are obtained by modification bearing length. |
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| Keywords: | porthole die hot extrusion FE analysis aluminum profile harmonica-shaped tube |
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