轧制力参数对二辊斜轧穿孔孔型的影响分析  

INFLUENCE OF SEPARATING FORCE AND AXIAL FORCEOF POINT BAR ON PIERCING PASS OF TWO-ROLL ROTARY PIERCER

作　　者：李胜祗[1] 孙中建[1] 李连诗[2] 

机构地区：[1]华东冶金学院 [2]北京科技大学

出　　处：《兵器材料科学与工程》1999年第5期57-60,共4页Ordnance Material Science and Engineering

基　　金：冶金部人教司1995~1998 年度有偿资助

摘　　要：分析了二辊斜轧穿孔轧制力对轧辊开度、变形参数和毛管壁厚均匀性的影响以及顶头轴向力对变形参数和壁厚均匀性的影响。结果表明，轧制力引起的轧辊辗轧角变化可以忽略，而轧制力对轧件壁厚的影响是显著的；The influence of the separating force on the roll opening of the rotary rolling piercer is discussed.Then the effects of the separating force on the parameters of the piercing deformation and lateral uniformity of the wall thickness of the shell pierced are theoretically analyzed.Furthermore the effect of the axial force of the point bar,both on the deformation parameters during piercing process and on dimensional precision of the wall thickness,are discussed.Noteworthily the variation of the toe-in angle caused by the separating force may be neglected,but the effect of the separating force on the wall thickness is remarkable. The effects of position variation of the point bar,due to its axial force,on the wall thickness and the lateral uniformity of the shell pierced merit attention.

关 键 词：无缝钢管 孔型设计 二辊斜轧穿孔 轧制力 

分 类 号：TG335.71[金属学及工艺—金属压力加工]