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AZ31镁合金心形件超塑气胀成形过程数值模拟
引用本文:陈昌平,于彦东.AZ31镁合金心形件超塑气胀成形过程数值模拟[J].哈尔滨理工大学学报,2009,14(4):110-113.
作者姓名:陈昌平  于彦东
作者单位:哈尔滨理工大学,材料科学与工程学院,黑龙江,哈尔滨,150040
基金项目:国家自然科学基金项目,哈尔滨市对俄合作项目 
摘    要:在超塑成形条件和超塑成形机理基础上,采用有限元分析软件MSC.MARC对AZ31镁合金薄板心形件,在不同成形温度和应变速率条件下的恒应变速率超塑气胀成形过程进行了数值模拟分析.设计20组模拟参数组合对胀形件的壁厚、危险区域进行分析,得出AZ31镁合金薄板心形件具有最佳成形质量时的温度值、应变速率值以及在此条件下的压力/时间关系(P—t曲线).同时本文对心形件的胀形过程以及成形特点进行了分析,对AZ31镁合金薄板心形件在胀形过程中.可能出现的缺陷位置做了预测.

关 键 词:AZ31镁合金  心形件  超塑成形  数值模拟

Numerical Simulation of Superplastic Bulging Process Of AZ31 Magnesium Alloy Heart-shaped Part
CHEN Chang-ping,YU Yan-dong.Numerical Simulation of Superplastic Bulging Process Of AZ31 Magnesium Alloy Heart-shaped Part[J].Journal of Harbin University of Science and Technology,2009,14(4):110-113.
Authors:CHEN Chang-ping  YU Yan-dong
Affiliation:(School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China)
Abstract:Based on an investigation on the conditions and mechanisms of superplastic forming, the numerical simulation of constant strain rate superplastic bulging under different temperature and strain rate of AZ31 magnesium alloy heart-shaped part was analyzed with the finite element analysis software MSC. MARC in this paper. By analyzing the thickness distributions and potential risky points of the bulging parts, obtained in the simulations with 20 groups of simulation parameters designed before, the temperature , strain rate and the time-pressure curve for the best deformed heart-shaped part of AZ31 magnesium alloy sheet were obtained successfully. Meanwhile the bulging process and the forming features of the heart-shaped part were analyzed. And the potential risky points of AZ31 magnesium alloy heart-shaped parts during the bulging process were predicted.
Keywords:AZ31 magnesium alloy  heart-shaped part  superplastic forming  numerical simulation
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