预应力组合凹模结构强度分析  

Structure Strength Analysis of Prestressed Sectional Female Die

作　　者：杨立权[1] 赵磊[1,2] 李晓棠[1] 吕青青[1] 汪希奎[1] 

机构地区：[1]贵州大学机械工程学院,贵阳550025 [2]贵州大学国家精密微特电机工程技术研究中心,贵阳550025

出　　处：《煤矿机械》2012年第9期124-125,共2页Coal Mine Machinery

基　　金：贵州大学研究生创新基金资助项目(校研理工2012048)

摘　　要：针对挤压成形过程中,整体式凹模强度不足的缺点,设计了双层预应力组合凹模,经过理论计算得出了合理的过盈量、接触应力等,并借助ANSYS Workbench有限元平台对过盈配合进行非线性接触分析,验证了预应力组合凹模的优越性,为实际生产提供了有价值的参考。According to the undercapacity of integral female die in extrusion forming process,the two layers of prestressed sectional female die was designed. The reasonable interferenc, e and contact stress etc. was obtained by theoretical calculation, the non-linear contact analysis of interference fit was accomplished by ANSYS Workbench finite element platform, the advantages of prestressed sectional female die was verified,provides valuable reference for practical production.

关 键 词：预应力组合凹模 过盈 强度 非线性接触 数值模拟 

分 类 号：TG375[金属学及工艺—金属压力加工] O343.5[理学—固体力学]