金刚石砂轮磨削铁氧体的表面粗糙度与形貌分析  

Analysis on surface roughness and surface topography of ferrite ground with diamond grinding wheel

作　　者：田霖[1] 徐九华[1] 苏宏华[1] 张贝[1] 

机构地区：[1]南京航空航天大学机电学院,南京210016

出　　处：《金刚石与磨料磨具工程》2009年第2期26-30,共5页Diamond & Abrasives Engineering

基　　金：江苏省自然科学基金(No.BK2006723)资助

摘　　要：本文研究了树脂结合剂金刚石砂轮磨削铁氧体材料时,磨削深度、工件进给速度对磨削表面粗糙度和材料去除方式的影响规律,以此探索提高铁氧体磨削表面质量的有效途径。采用单因素法设计试验方案对铁氧体进行磨削,测量表面粗糙度数据并对其进行方差分析,对铁氧体磨削表面形貌进行观察。结果表明:随着磨削深度、工件进给速度的增加,表面粗糙度值升高,同时表面塑性痕迹减少,脆性断裂痕迹增加,且磨削深度对表面粗糙度的影响要比工件进给速度的更显著,因此,制定磨削工艺时,考虑到粗磨为了提高效率,降低表面损伤,优化得到磨削工艺为磨削深度5μm,工件进给速度10 m/min;精磨为了获得较低的表面粗糙度,采用磨削深度5μm、工件进给速度为5 m/min,可以提高磨削表面延展性。In order to exploring an effective way of improving the ground surface quality of ferrite ceramics, the influence of grinding depth and workpiece speed on the ground surface roughness and its material removal mechanisms were studied through the grinding experiment with resin bonded diamond wheel. Meanwhile single factor test and variance analysis method were adopted to analyze the R, data, and then the grinding surface topography was analyzed. The results showed that the surface roughness and brittle fracture marks increased with the increase of grinding depth and workpiece speed, while ductile machining marks decreased. The grinding depth had more effect on R. than working speed. Consequently, in order to improve the grinding efficiency, small grinding depth （5 μm） and high workpiece speed （10 m/s） are proposed. On the other hand, optimized grinding depth （5μm） and low workpiece speed （5 m/s） are necessarily suggested for finishing process to reduce surface roughness and improve the surface ductility.

关 键 词：金刚石砂轮 铁氧体 表面粗糙度 表面形貌 

分 类 号：TG74[金属学及工艺—刀具与模具] TQ164[化学工程—高温制品工业]