环件径-轴双向轧制数值模拟及其多轧辊的联合控制  

Numerical Simulation of Radial-Axial Ring Rolling Process and Combined Control of Rolls

作　　者：朱兴林 时静茹 马秉馨 张智源 ZHU Xinglin;SHI Jingru;MA Bingxin;ZHANG Zhiyuan(School of Materials Science and Engineering,Henan Institute of Technology,Xinxiang 453003,China;Xinxiang Key Laboratory of Materials Processing Technology an d Mould,Xinxiang 453003,China)

机构地区：[1]河南工学院材料科学与工程学院,河南新乡453003 [2]新乡市材料成形技术与模具重点实验室,河南新乡453003

出　　处：《河南工学院学报》2024年第4期20-24,31,共6页Journal of Henan Institute of Technology

基　　金：河南工学院博士科研启动基金(KQ1819);河南省科技攻关项目(232102220064)。

摘　　要：环件轧制过程是热力耦合作用下高度非线性、非稳态的热成形工艺,其工艺参数多,轧辊控制复杂,难变形材料的环件轧制技术还缺乏高效、便捷的数值研究手段。以轧制曲线为基本变量,建立了各轧辊之间的运动学和动力学关系,随后基于FORGE有限元软件平台,依据Φ3000 mm数控环轧机建立了环件轧制的有限元模型。模型采用力及力矩控制抱辊,通过多轧辊联合控制,能够成功实现对偏心、椭圆等弱刚度现象的预测。通过Inconel718合金全尺寸环件轧制实验,验证了所建有限元模型的可靠性。该模型预测结果的相对误差小于3%,并在机匣等典型薄壁件的研制中得到了工程化应用。Ring rolling process is a highly nonlinear and unsteady hot forming process under the action of thermodynamic coupling.The process parameters are numerous and the rolls control are difficult.There is still a lack of efficient and convenient numerical research methods for ring rolling process.Taking the rolling curve as the fundamental variable,the kinematics and dynamics relationships of each roll were established as the theoretical basis.Then based on FORGE software,a finite element model was established according to Φ3000mm CNC ring rolling mill.Through the combined control of rolls,the weak stiffness defects such as eccentricity and ellipse can be predicted successfully.The reliability of the FE model was verified by full size ring rolling test of Inconel718 alloy.The relative error of the predicted result is less than 3%,and this model has been applied to the development of typical parts.

关 键 词：环件轧制 数值模拟 轧辊控制 INCONEL718合金 

分 类 号：TG335.11[金属学及工艺—金属压力加工]