倍模空拉管材的壁厚变化  

The Experiment Study on the Wall Thickness Variationsin Sinking Drawing with Double Dies

作　　者：周洪[1] 彭大暑[1] 刘志 

机构地区：[1]中南工业大学材料科学与工程系

出　　处：《轻合金加工技术》1998年第6期29-32,共4页Light Alloy Fabrication Technology

摘　　要：在实验的基础上，研究了在总变形量相同的条件下，管材经倍模空拉与单模空拉后的壁厚变化情况。通过对实验结果的整理和比较，发现管材倍模空拉或单模空拉后壁厚的变化规律不尽相同，空拉后它们的壁厚变化倾向相反。并研究了在不同工艺条件下管材经倍模空拉后壁厚的变化规律。The wall thickness variations in sinking drawing with double dies have been studied by experiment.The wall thicknesses of the tubes produced respectively with single die or double dies are measured.It shows that the tubes poduced with double dies are more likly to reduce their wall thickness,but those with single die are on the contrary.

关 键 词：空拉 倍模 单模 壁厚 管材 拉拔 

分 类 号：TG356.5[金属学及工艺—金属压力加工]