工艺参数对直缝钢管单次弯曲回弹的影响规律研究  

Research on the Influence of Process Parameters on the Rebound of Single Bending of Straight Seam Steel Pipes

作　　者：吕晓波 Lv Xiaobo(Taiyuan University of Science and Technology,Taiyuan Shanxi 030000,China)

机构地区：[1]太原科技大学,山西太原030000

出　　处：《山西冶金》2024年第9期117-119,共3页Shanxi Metallurgy

基　　金：山西省重点研发计划(202202150401007)。

摘　　要：研究工艺参数对卷板弯曲回弹的影响规律,分析其在弯曲工艺中对弯曲回弹的影响机理,可为JCO工艺的参数选择作准备。鉴于此,基于ABAQUS有限元模拟软件,建立了直缝钢管弯曲成型的二维有限元模型,其他参数不变,分别对板厚、上辊半径、下辊半径和下辊间距采用五组数据进行弯曲模拟研究,通过回弹半径进行表征以上因素对卷板弯曲回弹的影响。研究结果表明:在JCO弯曲工艺中,随着板厚、上辊半径、下辊半径的增大,弯曲回弹半径减小,即板厚、上辊半径和下辊半径的增大会削减回弹效果,并且下辊半径对回弹的影响大于上辊半径对回弹的影响;随着下辊间距的增大,弯曲回弹半径减小;增大了回弹作用。This study investigates the influence of process parameters on the springback of coil bending,analyzes the mechanism of their impact on springback in bending process,and prepares for the parameter selection of JCO process.In view of this,a two-dimensional finite element model of straight seam steel pipe bending forming was established based on ABAQUS finite element simulation software,with other parameters unchanged.Five sets of data were used for bending simulation research on plate thickness,upper roller radius,lower roller radius,and lower roller spacing,respectively.The influence of the above factors on the bending rebound of the rolled plate was characterized by the rebound radius.The research results indicate that in the JCO bending process,as the plate thickness,upper roller radius,and lower roller radius increase,the bending rebound radius decreases.That is,the increase in plate thickness,upper roller radius,and lower roller radius will reduce the rebound effect,and the influence of the lower roller radius on rebound is greater than that of the upper roller radius.As the spacing between the lower rollers increases,the bending rebound radius decrease,increasing rebound effect.

关 键 词：直缝钢管 数值模拟 弯曲回弹 弯曲回弹半径 ABAQUS 

分 类 号：TG142.12[一般工业技术—材料科学与工程]