轧制理论与应用研究的新进展  

Review on new progress in rolling theory and its application

作　　者：刘相华[1,2] 支颖 LIU Xianghua;ZHI Ying(State Key Laboratory of Rolling and Automation,Northeastern University Shenyang 110819,China;School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819 [2]东北大学材料科学与工程学院,辽宁沈阳110819

出　　处：《轧钢》2024年第5期1-11,共11页Steel Rolling

基　　金：国家自然科学基金项目(52374381,51504062);辽宁省自然科学基金项目(2020-MS-079)。

摘　　要：近40年来,轧制技术出现了翻天覆地的变化,这也带动和促进了轧制理论从经典到现代的蜕变,同时电子计算机在这种蜕变中发挥了至关重要的作用。首先,伴随着有限元解析算法的出现和快速发展、计算机存储与处理等能力的不断增强,一批商业化软件逐渐增加了求解轧制问题的功能,轧钢理论工作者逐渐掌握了ANSYS、MARC、ABAQUS等大型商业软件用法;近年来晶体塑性有限元的出现和发展,把对成形过程数值模拟的触角又推进到微观领域。其次,人工智能在轧制理论领域的应用,启发人们把目光从对轧制理论深层规律无止境的探索转向实实在在发生了的事情,从数据、模型、因果关系中挖掘出规律性,帮助人们间接地把握轧制过程的本质特征。还有,经典轧制理论的研究也没有停下脚步,传统的Karman方程遇到变厚度轧制这一新问题,升级为新的表现形式;甚至作为轧制过程运动学基石的秒流量相等原则在变厚度轧制中也受到撼动。可以看到:中国几代轧钢工作者经过40多年的学习、积累、赶超,现在已经进入到轧制理论发展的前沿,中国学者有能力、有信心肩负起用轧制理论来指导轧制实践发展的责任。In the last 40 years,rolling technology has undergone radical and significant changes,which has also driven and facilitated the metamorphosis of rolling theory from classical to modern.The computers have played a vital role in this metamorphosis.First,along with the great success of finite element method(FEM)numerical simulation,and the increasing capacity of computer storage and computation,a group of commercial software gradually added the function of solving rolling problems.Rolling steel theorists gradually mastered commercial software usage such as ANSYS,MARC,ABAQUS,etc.The emergence and development of crystal plasticity finite element method(CP-FEM)in recent years has pushed the reach of numerical simulation of forming processes into the microscopic realm.Secondly,the arrival of artificial intelligence(AI)in the field of rolling theory has inspired a shift in focus from the endless search for the deep laws of rolling theory to something that is actually happened,and to dig out regularities from data,models,and causal relationships,which helps people to indirectly grasp the essential features of the rolling process.Furthermore,classical rolling theory research has not stopped developing either.The traditional Karman equations meet a new problem and to take on a new form dealing with the new field of variable gauge rolling(VGR),and even the principle of equal second flow,which is the cornerstone of the kinematics of the rolling process,has been shaken up in VGR.We can see that several generations of Chinese steel rolling researchers after nearly 40 years of learning,accumulation,catching up,and now has entered the forefront of rolling theory development.Chinese scholars are capable and confidence to shoulder the responsibility of guiding rolling practice with rolling theory.

关 键 词：轧制理论 有限元模拟 人工智能 变厚度轧制 

分 类 号：TG335[金属学及工艺—金属压力加工]