铝合金典型件热介质成形工艺的数值模拟  

Numerical simulation analysis of warm hydroforming process for special aluminum-alloy part

作　　者：郎利辉[1] 蔡高参[1] 刘康宁[1] 刘宝胜[1] 杜平梅[1] 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《锻压技术》2011年第6期129-132,共4页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(50975014);中俄国际合作自然科学基金资助项目(51010166)

摘　　要：将热介质成形工艺用于铝合金典型件的成形,利用有限元软件MSC.Marc对卫星上的不规则筒形件的热介质成形工艺过程进行了数值模拟,研究了铝合金典型件热介质成形过程中温度、液室压力与加载路径对成形结果的影响,优化了热介质成形关键工艺参数。研究结果表明,合适的凸凹模温度、液室压力和压边力可以避免体皱的产生和破裂的发生,并且能保证零件的贴模度。Sheet warm hydroforming was applied for special-shaped part forming.This process was researched by numerical simulation with MSC.Marc software.The influence of temperature,fluid chamber pressure and the loading path of warm hydroforming on the forming result was studied.The key process parameter was optimized.It has been approved that the appropriate punch and die temperature,fluid chamber pressure and die cavity pressure can prevent the wrinkle and crack,and the sticking mold degree of parts are ensured.

关 键 词：铝合金 热介质成形 数值模拟 

分 类 号：TG386.3[金属学及工艺—金属压力加工]