大型异形环件径-轴向轧制芯辊运动自适应控制  

Motion self-adaptive control of mandrel roll in radial-axial rolling for large profiled ring

作　　者：王雨[1] 谢丹 何珞玉 徐戊矫[1] 吴道祥 WANG Yu;XIE Dan;HE Luo-yu;XU Wu-jiao;WU Dao-xiang(School of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;Technical Center,Southwest Aluminium(Group)Co.,Ltd.,Chongqing 401326,China)

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]西南铝业(集团)有限责任公司技术中心,重庆401326

出　　处：《塑性工程学报》2021年第12期81-89,共9页Journal of Plasticity Engineering

基　　金：重庆市技术创新与应用示范专项产业类重点研发项目(cstc2018jszx-cyzdX0094)。

摘　　要：为了快速设计出适用于大型异形环件轧制的芯辊进给策略,基于环件外径匀速增长原则开发了一种芯辊运动的自适应控制算法,并引入了轧制缺陷的反馈机制以确保轧制稳定性。基于Abaqus平台,利用VUAMP子程序实现了该算法在环件轧制有限元模拟中的应用。利用该算法计算了异形环件在3种不同外径增速下的成形,分析了3种方案下的芯辊速度、圆度误差以及实际环件外径增速。结果表明,方案2即环件外径增速设计值为3.5 mm·s;时,轧制过程的稳定性最高。依据方案2完成了实际异形环件轧制生产实验,实验环件成形良好,外径变化与计算值吻合较好。To design the mandrel roll feeding strategy of large profiled ring rolling quickly, a self-adaptive control algorithm for mandrel roll motion based on the uniform growth principle of outer diameter of ring was developed, and the feedback mechanism of rolling defects was introduced to guarantee the rolling stability. Based on the Abaqus platform, the VUAMP subroutine was used to realize the application of the algorithm in finite element simulation of ring rolling. The forming of profiled ring with three different outer diameter growth rates was calculated using the algorithm, and the mandrel roll speed, roundness error and actual outer diameter growth rate of ring under the three schemes were analyzed. The results show that when using scheme two, namely the design value of growth rate of outer diameter of ring is 3.5 mm·s;,the stability of rolling process is the highest. According to scheme two, the actual rolling production experiment of profiled ring was completed. The forming of experiment ring is good, and the outer diameter change is consistent with the calculated value.

关 键 词：环件轧制 异形环件 芯辊运动 自适应控制 反馈算法 

分 类 号：TG33[金属学及工艺—金属压力加工]