Title: Numerical simulation in the porthole dies extrusion of aluminum harmonica-shaped tube
Abstract:According to the rigid-viscoplasticity finite element method,the porthole die extrusion process of an aluminum harmonica-shaped tube was successfully simulated based software Deform-3D.The distributio...According to the rigid-viscoplasticity finite element method,the porthole die extrusion process of an aluminum harmonica-shaped tube was successfully simulated based software Deform-3D.The distribution of stress field,effective strain field,velocity field and temperature field during the extrusion process were discussed and metal flow in welding extrusion was analyzed in details.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 is improved.The result shows that the uniform material flow velocities in the die exit and a perfect extruded are obtained by modification bearing length.The simulation results provide theoretical reference for mould design and selection of technological parameters.Read More
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 1
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