薄壁铜管游动芯头拉伸模具的改进  

Improvement of Drawing Die for Thin Wall Copper Tube Floating Plug

作　　者：陈立鹏[1] 刘劲松[1,2] 张士宏[2] 

机构地区：[1]沈阳理工大学,辽宁沈阳110159 [2]中国科学院金属研究所,辽宁沈阳110016

出　　处：《铜业工程》2015年第5期8-11,共4页Copper Engineering

摘　　要：采用游动芯头生产铜管由来已久,已经实现工业化生产。主要对游动芯头拉伸模具的芯头进行结构改进。运用非线性有限元软件Marc对游动芯头拉管过程进行模拟。分析芯头改进前后拉拔力和温度场的变化趋势,从模拟角度验证芯头改进方法的可行性。分别对改进前后拉制的铜管材进行组织形貌分析,从实验角度说明芯头改进在实际生产中的价值。这一研究结果对实际生产过程中薄壁铜管游动芯头拉伸模具的改进提供了科学依据。The production of copper tube with floating plug has been long time, and has realized industrial production. the structure improvement of floating plug is carried out. By using the nonlinear finite element software Marc to simulate the floating plug drawing process. The change trend of drawing force and temperature field before and after improving floating plug are analyzed. The feasibility of floating plug improvement method is verified by simulation. The drawing copper material microstructure before and after the improvement are analyzed respectively. The value of floating plug improvement in industrial production is illustrated from the view of experiment. This study provides a scientific basis for the improvement of the thin wall copper tube in the actual production process of the drawing die with floating plug.

关 键 词：游动芯头 铜管 结构改进 拉拔力 温度场 组织形貌 

分 类 号：TG34[金属学及工艺—金属压力加工]