乙醇浓度对亲水性固结磨料垫自修整特性的影响  

Effect of ethanol solution on self-condition property of hydrophilic fixed abrasive pad

作　　者：王子琨 朱永伟 金振弘 李军 王建彬 WANG Zi-kun;ZHU Yong-wei;JIN Zhen-hong;LI Jun;WANG Jian-bin(Jiangsu Key Laboratory of Precision and Micro-manufacturing Technology,College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;School of Mechanical and Automobile Engineering,Anhui Polytechnic University,Wuhu 241000,China)

机构地区：[1]南京航空航天大学机电学院,江苏省精密与微细制造技术重点实验室,江苏南京210016 [2]安徽工程大学机械与汽车工程学院,安徽芜湖241000

出　　处：《光学精密工程》2018年第4期843-849,共7页Optics and Precision Engineering

基　　金：国家自然科学基金资助项目(No.51675276);安徽省自然科学基金青年项目(No.1708085QE127);安徽省高校自然科学研究重点项目(No.KJ2016A798);江苏省重点实验室开放基金项目;南京航空航天大学研究生创新基地开放基金资助项目(No.kfjj20160502)

摘　　要：自修整能力是评价亲水性固结磨料研磨垫加工性能的重要指标。本文选择不同浓度的乙醇水溶液作为研磨介质,表征了亲水性固结磨料垫基体在研磨介质中的溶胀率与砂浆磨损速率,探索了亲水性固结磨料垫在不同研磨介质条件下研磨石英玻璃的加工性能,采用亲水性固结磨料垫在不同阶段的材料去除速率变化(Material Removal Rate Variation,MRRV)衡量固结磨料垫的自修整能力。结果表明:随着研磨介质中乙醇浓度的增加,溶胀率与砂浆磨损速率均增大,分别达到了1.05%与5.5mg/h,不仅研磨垫的材料去除率与表面质量得到了提高,同时,不同阶段的MRRV大幅减小,体现了更优的自修整能力。当乙醇浓度为25%时,平均材料去除率达到11.82μm/min,表面粗糙度Ra为75nm,磨料垫具备了良好的加工性能。研磨介质中引入乙醇能有效提高固结磨料垫的加工性能。Self-condition property is one of the most important parameters to evaluate the processing performance of hydrophilic fixed abrasive pad.In this paper,the ethanol solution with different concentrations was selected as the abrasive media,and the swelling rate and slurry wear rate were developed to characterize the property of the matrix for hydrophilic fixed abrasive pad.The processing properties were described with the quartz glass lapping experiment with those slurries.Material Removal Rate Variation(MRRV)was proposed to measure the stability degree of the processing.The results show that,with the increase of the ethanol concentration in the abrasive media,the swelling rate and the slurry wear rate increase,which reach 1.05%and 5.5 mg/h,respectively.Not only the material removal rate and the surface quality of the abrasive pad are improved,but the MRRV of different stages decrease greatly,which show the better self-conditioning ability.When the ethanol concentration is 25%,the average material removal rate reaches 11.82μm/min,and the surface roughness R a is 75 nm,which has good processing performance.It shows that the study presented in the paper can effectively improve the processability of the hydrophilic fixed abrasive pad.

关 键 词：研磨 乙醇水溶液 材料去除率变化 亲水性固结磨料 自修整 

分 类 号：TG74[金属学及工艺—刀具与模具] TG176