K9玻璃磁性研磨抛光表面粗糙度试验研究

摘要

针对 K9光学玻璃研磨抛光过程中存在的问题,将磁性研磨加工方法应用在光学玻璃的研磨抛光上。试验表明,K9玻璃的表面粗糙度值Ra由原来的90 nm 左右下降到40 nm 左右。为进一步研究磁性研磨试验的4个因素,设计了正交试验,最终得出各个因素对于工件表面粗糙度影响的主次顺序,并确定其最优组合为：磁极转速2300 r/min,加工间隙1.5 mm,磁感应强度0.4 T,进给速度200 mm/min。%To study the existing problems of polishing K9 optical glass,magnetic abrasive finishing was put forward in polishing optical glass•Results showed that surface roughness R a of K9 glass decreased from 90 nm to 40 nm•Based on the feasibility study,the magnetic abrasive finishing experiments were performed by orthogonal experiment with 4 parameters•Then various factors of magnetic abrasive finishing were listed in sequence•The optimum combination was that:pole speed of 2300 r∕min,working clearance of 1•5 mm,magnetic flux density of 0•4 T and feed rate of 200 mm∕min.