液体磁性磨具光整加工氧化锆陶瓷试验研究  

Experimental Study on Zirconia Ceramic by Fluid Magnetic Abrasive Finishing

作　　者：孙金言 孙桓五 纪刚强[1] 段海栋 杨冬亮 SUN Jin-yan;SUN Huan-wu;JI Gang-qiang;DUAN Hai-dong;YANG Dong-liang(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;National Demonstration Center for Experimental Coal Resource and Mining Equipments Education,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学机械与运载工程学院,太原030024 [2]太原理工大学煤炭资源开采利用与装备工程国家级实验教学示范中心,太原030024

出　　处：《组合机床与自动化加工技术》2022年第1期122-126,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然基金(51075294);山西省自然科学基金(201601D101060);精密与特种加工教育部重点实验室开发课题(JMTZ201603);山西省重点研发计划项目(201903D121091)。

摘　　要：为解决氧化锆陶瓷难加工、加工效率低、表面质量差的问题,采用液体磁性磨具光整加工技术对氧化锆陶瓷进行加工。通过配置不同磨料的液体磁性磨具对氧化锆零件进行光整加工,研究磨料种类对加工效果的影响。通过设计单因素试验,研究加工时间、工件转速、磁感应强度和轴向运动速度等主要工艺参数对氧化锆陶瓷表面粗糙度Ra和材料去除率MRR的影响规律。结果表明:在加工过程中使用高硬度的金刚石磨料可以获得比其他磨料更高的材料去除率,加工后能获得更好的表面质量。表面粗糙度Ra随时间的增加而降低,加工60 min以后Ra不再继续下降。Ra随工件转速、轴向运动速度的增大而减小,随磁感应强度的增大Ra先减小后增大;MRR随工件转速、磁感应强度的增大先增大后减小,随轴向运动速度的增大而增大。采用液体磁性磨具光整加工技术可以在提高氧化锆陶瓷材料去除率的同时有效降低其表面粗糙度。To solve the problems of difficult processing, low processing efficiency and poor surface quality of zirconia ceramics, zirconia ceramics are processed by fluid magnetic abrasive finishing technology.The zirconia ceramic material is processed by fluid magnetic abrasive with different abrasives to study the effect of abrasive types on the finishing performance.A single-factor experiment was designed to study the effects of main process parameters such as processing time, workpiece rotation speed, magnetic induction intensity and composite motion speed on the surface roughness Ra and material removal rate MRR of zirconia ceramics.The test results show that high-hardness diamond abrasives have a higher material removal rate than other abrasives in the finishing process, and can obtain better surface quality after processing.The Ra decreases with the increase of time.The Ra will not continue to decline after 60 min.The Ra decreases with the increase of workpiece speed and axial motion speed, Ra first decreases and then increases with the increase of magnetic induction;MRR first increases and then decreases with the increase of workpiece speed and magnetic induction, and increases with the increase of axial motion speed.The use of fluid magnetic abrasive finishing technology can effectively reduce the surface roughness of the zirconia ceramic material while increasing the removal rate of the zirconia ceramic material.

关 键 词：液体磁性磨具 光整加工 氧化锆陶瓷 材料去除率 表面粗糙度 表面形貌 

分 类 号：TH16[机械工程—机械制造及自动化] TG580[金属学及工艺—金属切削加工及机床]