Acta Metallurgica Sinica (English Letters) ›› 1991, Vol. 4 ›› Issue (9): 184-190.

• Research paper • Previous Articles     Next Articles

ECCENTRICITY CHANGE IN TUBE SINKING

YAO Ruohao ZHONG Jianhua HUANG Jianfang ZHANG Ruhua South Institute of Metallurgy,Ganzhou,Jiangxi,China   

  • Received:1991-09-11 Revised:1991-09-11 Online:1991-09-11 Published:2009-10-10

Abstract: The rectification of eccentricity was revealed to be more effective in tube sinking than drawing with a mandrel.The ratio of thickness to diameter of tube blank on both sides of thick and thin wall seems to be the principal influential factor in rectifying eccentricity.The greater the ini- tial outside diameter and the initial wall thickness difference are and the less the initial wall thickness of the tube blank is,the better the rectification is.

Key words: sinking tube, eccentricity, rectifying