Title: Applications of mesh reconstruction technology in FEM simulation of porthole die extrusion for hollow Al-alloy profile
Abstract:Applying the mesh reconstruction technology based on Deform-3D and Pro/Engineer software,taking the typical large and hollow Al-alloy industry profile as an example,the whole extrusion process(includi...Applying the mesh reconstruction technology based on Deform-3D and Pro/Engineer software,taking the typical large and hollow Al-alloy industry profile as an example,the whole extrusion process(including welding process) was simulated.The results show that,using an enterprise's porthole die design,in the beginning of extrusion,the welding of the middle-welding plane is delayed compared with the two side-welding planes,which leads to the shortage of the metal in the middle of the profile cross section as well as the elastic offset of the mandrel which is apt to causing the size deviation of the profile thickness.In the stage of steady extrusion,the highest temperature near the die orifice is about 520℃,the hydrostatic pressure in welding chamber is about 5-10 times than the yield stress of A6005,the mandrel offset is about 0.43mm,that means the extrusion temperature,welding quality and the thickness-size deviation meet the industry requirements.Read More
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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