银大塑性变形的有限元模拟  

Finite Element Simulation of Silver Severe Plastic Deformation

作　　者：许福太[1] 陈敬超[1] 刘满门[1] 武淑珍[1] 于杰[1] 

机构地区：[1]昆明理工大学,云南昆明650093

出　　处：《稀有金属材料与工程》2009年第10期1761-1764,共4页Rare Metal Materials and Engineering

基　　金："973"计划前期研究专项(2008CB617609);国家自然科学基金(50361003);云南省应用基础研究计划重点项目(2006E0003Z)

摘　　要：应用CAE(computer aided engineering)模拟仿真软件MSC.Marc,采用热力耦合弹塑性有限元分析模块,对纯银的挤压过程进行计算机模拟仿真。对挤压过程中银的流动情况进行分析,得出银的挤压流线与实际的情况相符,说明采用有限元软件模拟金属流动过程是可行的;对挤压过程中银所受到的应力应变进行分析,得出银在变形区内受到的应力最大,而银变形最剧烈的地方是从变形区进入定径带的部位。The extrusion process of silver was simulated by thermal coupling elastic-plastic finite element analysis module, using the CAE （Computer Aided Engineering） simulation software package-MSC.Marc. By analyzing the flow situation of the silver in the extrusion process, it is found that the simulated extrusion flow line agrees with the experimental, which shows that it is feasible to simulate metal flowing process by the finite element software. The stress and the strain in this extrusion process were analyzed. The biggest stress of the silver is in the deforming region. However, the zone from the deforming region to the calibrating strap is the most intense deformed zone.

关 键 词：银挤压 应力 应变 有限元模拟 

分 类 号：TG379[金属学及工艺—金属压力加工]