天线反射面表面富树脂层的精密抛光参数对表面粗糙度的影响规律  

The influence of precision polishing parameters on surface roughness of resin-rich layer on antenna reflective surface

作　　者：刘建奇 康仁科[1] 田俊超 董志刚[1] 鲍岩 LIU Jianqi;KANG Renke;TIAN Junchao;DONG Zhigang;BAO Yan(Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education,Dalian University of Technology,Dalian 116024,Liaoning,China)

机构地区：[1]大连理工大学,精密与特种加工教育部重点实验室,辽宁大连116024

出　　处：《金刚石与磨料磨具工程》2023年第2期250-256,共7页Diamond & Abrasives Engineering

基　　金：上海航天科技创新基金(SAST2020-107)

摘　　要：针对新一代全碳纤维复合材料天线对反射面表面富树脂层的高质量加工需求,开展富树脂层抛光工艺试验,研究抛光时间、磨粒粒径、磨粒质量分数、加载压力以及抛光转速对富树脂层表面粗糙度的影响规律。结果表明:在当前试验条件下,表面粗糙度随抛光时间的延长先减小后趋于稳定,随着磨粒粒径或加载压力的增大而增大,随磨粒质量分数的升高或抛光转速的增大先减小后增大。在此基础上形成优化工艺参数组合是磨粒粒径为25 nm,磨粒质量分数为20%,加载压力为14.1 kPa,抛光转速为50 r/min,抛光时间为1.0 h,抛光液流量为10 mL/min,用该参数组合加工可获得表面粗糙度Sa为4.73 nm的高质量富树脂层抛光表面。The new generation antenna has high-quality processing requirements on the resin-rich layer of the reflecting surface.A polishing experiment on the resin-rich layer was carried out to study the parameters affecting the surface roughness of the layer,namely polishing time,abrasive particle size,abrasive particle mass fraction,loading pressure and polishing speed.The results show that under the current conditions,the surface roughness first decreases and then tends to be stable with the increase of polishing time.It increases with the increase of the abrasive particle size or the loading pressure,and first decreases and then increases with the increase of the abrasive particle mass fraction or the polishing speed.On this basis,an optimized process parameter combination is formed,which includes an abrasive size of 25 nm,an abrasive particle mass fraction of 20%,a loading pressure of 14.1 kPa,a polishing speed of 50 r/min,a polishing time of 1.0 hours,and a slurry flow rate of 10 mL/min.A high-quality resin rich layer polished surface with a surface roughness Sa of 4.73 nm can be obtained by machining with this parameter combination.

关 键 词：环氧树脂 抛光 表面粗糙度 工艺参数 

分 类 号：TG58[金属学及工艺—金属切削加工及机床] TH16[机械工程—机械制造及自动化] TQ323.5[化学工程—合成树脂塑料工业]