摘要
利用有限元法对热挤压模具体内各节点的应力值进行了计算和分析 ,结果表明 :模具体内应力集中较明显 ,且在此部位极易形成裂纹。通过对模具结构尺寸的优化设计 ,改进后的模具体内最大应力下降 32 .2 % ,从而延长了模具的使用寿命。
This paper uses finite element method to calculate and analyze the stress of nodes in hot extrusion dies. It is indicated that there is an obvious stress concentration in the body of dies where it is very easy to form crackles. By the optimal design to the structural measurements of hot extrusion dies,the maximum stress in the body of improved dies is decreased by 32.2%,the lifespan is therefore prolonged.
出处
《机械科学与技术》
CSCD
北大核心
2004年第1期31-32,共2页
Mechanical Science and Technology for Aerospace Engineering
关键词
热挤压模具
有限元法
优化
Hot extrusion die
Finite element method
Optimization
