等通道转角挤压过程有限元模拟  

Finite-element simulation in the process of equal channel angular extrusion

作　　者：张建[1] 崔宏祥[1] 赵润娴[1] 毕大森[1] 李国刚[1] 

机构地区：[1]天津理工学院,天津300191

出　　处：《重型机械》2002年第3期43-46,共4页Heavy Machinery

基　　金：天津市高校科技发展基金项目 ( 990 30 8);天津市自然科学基金项目 ( 0 1360 3911)

摘　　要：等通道转角挤压是一种新的制备超细晶粒材料的技术。对于工业纯铝材料的等通道转角挤压过程 ,采用有限元技术进行模拟 ,分析了挤压过程中材料的应力和应变并对不同摩擦条件下的挤压变形情况进行了分析 ,将有限元分析结果与实际网格变形进行了比较 。Equal channel angular extrusion is a new technology of obtaining ultra fine grain materials.Using the finite element simulation technology,field of stress and strain are studied in the process of extrusion and extruding deformation is analyzed under different frictional conditions in the process of deforming pure aluminum material by equal channel angular extrusion.Calculated results by finite element method and real mesh deformation are in comparison with each other.The data show identical on the whole.

关 键 词：等通道转角挤压 超细化晶粒 有限元模拟 工业纯铝 

分 类 号：TG372[金属学及工艺—金属压力加工] TG379