锥模和弧形模芯拔管成型过程的非线性有限元分析  

Non linear finite element analysis of the forming process of plug drawing tube with cone and china dies

作　　者：胡建英[1] 叶金铎[1] 牛洪军[1] 

机构地区：[1]天津理工大学机械工程学院,天津300191

出　　处：《天津理工大学学报》2006年第2期23-26,共4页Journal of Tianjin University of Technology

基　　金：天津市自然科学重点基金项目(023801011)

摘　　要：为了获得不同的模具下短芯棒拔管成型过程中的应力分布规律以及不同模具对短芯棒拔管拔制力、芯棒后拉力和尺寸精度的影响规律,利用有限元的方法,建立了不同模具下短芯棒拔管成型的有限元模型.计算结果表明,不同的模具,芯拔管的应力分布不同,弧形模成型的拔制力与芯棒后拉力较大,锥形模成型后钢管的直径与壁厚更接近设计值.In order to obtain the stress distributing rules of the forming process of short plug drawing tube and the differences of drawing force, pulling force and dimension precision under different dies, FE method was used and FE model of the plug drawing tube under different dies was built. The calculation results show that the stress distributing of the plug drawing tube is different because of different dies, the drawing force and pulling force are lager in arc die and the diameter and wall thickness are closer to the designing value in cone die.

关 键 词：芯拔管 有限元 模具 拔制力 后拉力 

分 类 号：TG356.11[金属学及工艺—金属压力加工]