磁流变抛光表面形貌仿真与试验研究  

Simulation and experimental study on surface topography of magnetorheological polishing

作　　者：张争艳[1,2] 戴立达 乔国朝 ZHANG Zhengyan;DAI Lida;QIAO Guochao(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China;National Technological Innovation Method and Tool Engineering Research Center,Tianjin 300401,China)

机构地区：[1]河北工业大学机械工程学院,天津300401 [2]国家技术创新方法与实施工具工程技术研究中心,天津300401

出　　处：《河北工业大学学报》2023年第2期1-8,共8页Journal of Hebei University of Technology

基　　金：国家重点研发计划(2018YFB1107600);国家自然科学基金(61802108);河北省自然科学基金(E2017202296)。

摘　　要：表面形貌是工件加工质量的重要分析内容,为了更好地研究磁流变抛光工艺的工件表面质量,提出了一种磁流变抛光的表面形貌数值仿真方法。基于磁流变液的流变特性以及磨粒的受力情况,建立了磨粒的运动模型以及磨粒加工时侵入工件的深度模型,进而提出了磁流变抛光工件表面的轮廓生成算法,模拟了不同加工参数下的工件表面形貌和相关三维形貌表征参数。最后通过对比试验数据与仿真数据表明该方法能够有效的预测工件表面加工质量的变化趋势,验证了该方法的正确性。Surface topography is an important part of workpiece processing quality analysis.In order to better study the surface quality of workpiece in magnetorheological polishing process,a numerical simulation method of surface topogra⁃phy in magnetorheological polishing is proposed.Based on the rheological properties of MRF and the normal force of abra⁃sive particles,the movement model of abrasive particles and the depth model of abrasive particles invading the workpiece during machining are established.Then,the contour generation algorithm of workpiece surface in MRF polishing is pro⁃posed.The surface morphology of workpiece under different machining parameters and the related 3-dimensional morphol⁃ogy characterization parameters are simulated.Finally,the experimental data and simulation data show that the method can effectively predict the change trend of workpiece surface processing quality,and verify the correctness of the method.

关 键 词：磁流变抛光 表面形貌 表面轮廓生成 仿真 运动轨迹 

分 类 号：TH161.14[机械工程—机械制造及自动化]