铝型材挤压数值模拟的研究进展  

Review of Numerical Simulation for Extrusion Process of Aluminum Alloy Profile

作　　者：方刚[1] 王飞[1] 雷丽萍[1] 曾攀[1] 

机构地区：[1]清华大学机械工程系先进成形制造教育部重点实验室,北京100084

出　　处：《稀有金属》2007年第5期682-688,共7页Chinese Journal of Rare Metals

基　　金：国家自然科学基金项目资助(50205013)

摘　　要：介绍了铝型材挤压工艺数值模拟的各种方法,通过数值模拟可以分析挤压型材的速度、形状、温度和微观组织等。分析了挤压模拟的有限元方法,即基于Euler描述的流体力学求解方法、基于Lagrange描述的固体力学求解方法和集这种两种方法优点于一身的ALE方法,并介绍利用这些方法对型材挤压工艺的模拟例子,分析了挤压工艺模拟中的难点和今后的发展趋势。A review of plied to the analysis of num profiles was given, the numerical simulations apextrusion processes of alumihrough numerical simulation the deformation, velocity, temperature and microstructure of the extruded profile can be predicted. The different finite element methods were analyzed, including the fluid mechanics method based Euler description,the solid mechanics based Lagrange description and arbitrary Lagrange-Euler method. Some simulation examples were introduced, which were carried out with these finite element methods. Finally, the present difficulties in FEM simulation of aluminum profile extrusion were listed and the tendencies of this field also were predicted.

关 键 词：铝合金 型材挤压 模拟 有限元 

分 类 号：TG379[金属学及工艺—金属压力加工]