一种厚壁管镦粗新工艺  

A New Upsetting Process of Thick-Wall Tubes

作　　者：高军[1] 张国强[1] 宋立彬[1] 赵国群[1] 

机构地区：[1]山东大学南校区材料学院,山东济南250061

出　　处：《模具技术》2001年第3期25-26,29,共3页Die and Mould Technology

摘　　要：提出了一种浮动凹模芯模闭式镦粗法 ,以解决厚壁管在单向加压的普通液压机上进行闭式镦粗后壁厚不均的问题。首先 ,介绍了该工艺的成形过程及模具结构 ;其次 ,采用刚塑性有限元法对新工艺和传统工艺进行了有限元模拟 ,发现新工艺可明显地提高管件壁厚的均匀性。Using closed die upsetting process to manufacture thick wall tubes on normal hydraulic press may cause the dis uniformity of the thickness along the length of the tube. In this paper, a new process of using floating dies was introduced. The forming process and die structure were given. Using the rigid plastic finite element method, both the new process and the conventional process were simulated on the computer workstation. The comparison of the simulated results for the two processes shows that the thickness of the tube obtained by the new process is more uniform than that by the conventional process.

关 键 词：厚壁管 镦粗 浮动模 有限元模拟 抽油泵 

分 类 号：TE933.3[石油与天然气工程—石油机械设备] TG316.11[金属学及工艺—金属压力加工]