Numerical simulation on thixo-co-extrusion of double-layer tube with A356/AZ91D
作者： Kai-kun WANG , Jian-lin SUN , Hai-feng MENG , Yan-mei DU , Xi WANG
DOI: 10.1016/S1003-6326(10)60607-3
关键词:
摘要: Abstract Based on analysis of the main forming methods for double-layer tube, a new short-term process called thixo-co-extrusion was put forward in producing tube by combining semi-solid technology and multi-billet extrusion technology. By means with shaft, finite element model A356/AZ91 constructed ABAQUS FEM software. The distributions temperature field velocity as well contact force during were studied. diffusion interfaces between inner outer metals analyzed. simulation results show that, beginning thixo-co-extrusion, uneven wall thickness can appear. To ratio 5:5, double layer good combination be realized if VA356 is 0.12 m/s VAZ91 0.20 m/s.
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