Numerical simulation of aluminum extrusion process using body fitted grids based finite volume method

Author(s):  
Hongzhong Li ◽  
Rui Wang ◽  
Xiuling Pan
2014 ◽  
Vol 602-605 ◽  
pp. 64-68
Author(s):  
Yu Jie Zhang ◽  
Xiao Feng Gong ◽  
Rui Wang ◽  
Xiao Qing Feng

A mathematic model of aluminum extrusion process using body-fitted grids based finite volume method was studied and established in this paper. The basic goverment equations of the finite volume method were built, body-fitted grids were used to mesh computational region, basic goverment equations were discretized on body fitted grids directly, so complex coordinate conversion was avoided by no use of aptamer coordinate system. Initial conditions, boundary conditions and calculation processes of aluminum extrusion process finite volume method were studied and established, a program had been written based this model and a typical process of aluminum extrusion was simulated, amount of physical fields such as velocities, effective stress and effective strain rate etc. were obtained, the results were compared with that simulated by finite element method, so the feasibility and exactness of the mathematic model is proved.


2012 ◽  
Vol 572 ◽  
pp. 267-272
Author(s):  
Yi Lun Mao ◽  
Qing Dong Zhang ◽  
Chao Yang Sun ◽  
Xiao Feng Zhang

In this paper, complexity of the process of high temperature alloy tubing extrusion is studied using the Finite Volume Method (FVM). We establish mathematical model of high temperature alloy tube extrusion process by using the Finite Volume Method. We develop the simulation program by the control equation of the Finite Volume Method and numerical simulation of the key technologies of the axisymmetric problem in cylindrical coordinates. Inconel690 high temperature alloy tubing extrusion process, for example, we got the squeeze pressure in the steady-state extrusion, Velocity field and the corresponding equivalent strain rate field. By comparing the results obtained by the finite volume method and simulation results from Finite Element Method (FEM) software on DEFORM-2D, we find our mathematical model on high temperature alloy tubing extrusion process is reasonable and correct.


2009 ◽  
Vol 52 (21-22) ◽  
pp. 4976-4985 ◽  
Author(s):  
Wilton Pereira da Silva ◽  
Jürgen W. Precker ◽  
Diogo D.P.S. e Silva ◽  
Cleiton D.P.S. e Silva ◽  
Antonio Gilson Barbosa de Lima

2009 ◽  
Vol 2009.22 (0) ◽  
pp. 490-491
Author(s):  
Susumu YAMASHITA ◽  
Takayuki AOKI ◽  
Feng XIAO ◽  
Keiko TAKAHASHI

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