基于表面平整度控制的超大型环件轧制曲线自优化方法研究  

Study on self-optimized method of rolling curve based on surface flatness control for super large rings

作　　者：羊冠立 钱东升[1,2,3] 田汉 邓加东[2,3] 王丰 YANG Guan-li;QIAN Dong-sheng;TIAN Han;DENG Jia-dong;WANG Feng(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan 430070,China;Hubei Engineering Technology Research Center for Material Green Precision Forming,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070 [2]武汉理工大学现代汽车零部件技术湖北省重点实验室,湖北武汉430070 [3]武汉理工大学湖北省材料绿色精密成形工程技术研究中心,湖北武汉430070

出　　处：《塑性工程学报》2025年第1期92-99,共8页Journal of Plasticity Engineering

基　　金：国家重点研发计划(2018YFA0702905);中国博士后科学基金资助项目(2023M742675);教育部创新团队发展计划项目(IRT_17R83);湖北省科技创新人才及服务专项(2022EJD012);高等学校学科创新引智计划项目(B17034)。

摘　　要：针对超大型环件轧制过程中出现的环件外表面不平整缺陷,基于ABAQUS有限元软件建立超大型环件径轴向轧制热-力耦合有限元模型,研究了轧制过程中环件外表面平整性演变规律,进一步揭示了轴向与径向变形速率比对环件外表面不平整度变化的影响规律。提出了一种两段式轧制曲线设计方法,进而建立了一种基于环件外表面平整状态反馈的轧制曲线自优化控制模型,将自优化过程中环件外表面不平整度与预设S型轧制曲线所得不平整度进行了比较,结果表明,自优化控制方法得到的轧制曲线提升了环件外表面的平整度,轧制结束时环件中间高度与下端面处不平整度分别降低了36.6%和25.5%。Aiming at the unevenness defect of outer surface for the super large rings during rolling process,the thermal-force coupled finite element model of radial-axial rolling for super large rings was established based on ABAQUS finite element software,and the evolution laws of the outer surface flatness for the rings during the rolling process were investigated.Moreover,the influence laws of axial and radial deformation rate ratios on the variation of unevenness of ring outer surface were revealed.A two-stage rolling curve design method was proposed,and a self-optimized control model of rolling curve based on the feedback of outer surface flatness state of the ring was established.The unevenness of outer surface of the rings during self-optimized process was compared with the unevenness obtained by the preset S-type rolling curve.The results show that the rolling curve obtained by the self-optimized control method improves the outer surface flatness of the ring,and the unevenness of the middle height and lower end of the ring is reduced by 36.5% and 25.5%,respectively.

关 键 词：超大型环件 径-轴向轧制 平整度 数值模拟 

分 类 号：TG335[金属学及工艺—金属压力加工]