固结磨料研磨K9玻璃表面粗糙度模型修正  

Model updating of K9 glass surface roughness in fixed abrasive lapping

作　　者：王慧敏[1] 李军 王文泽[1] 黄建东[1] 朱永伟[1] 左敦稳[1] 

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,南京210016

出　　处：《金刚石与磨料磨具工程》2015年第1期39-43,共5页Diamond & Abrasives Engineering

基　　金：国家自然科学基金资助项目(51175260);中国博士后科学基金资助项目(2014M551586);江苏省博士后科研资助计划(1302069B);中央高校基本科研业务专项资金资助项目(NS2013055);江苏省高校优势学科建设工程资助

摘　　要：考虑磨粒轨迹和研磨垫弹性的影响,分析磨粒间距的概率密度函数,计算磨粒轨迹重叠率;引入与研磨参数相关的修正因子,并确定其值,修正固结磨料研磨K9玻璃表面粗糙度公式,实验验证修正模型。结果表明:修正后,K9玻璃表面粗糙度模型计算值与实验值误差控制在4%以内。显著提高K9玻璃表面粗糙度的预测精度,有效指导其研磨方案设计,提高加工效率。Surface roughness is an important indicator of workpiece surface quality, and also a common processing quality parameter in ultra-precision machining. Considering the effect of abrasive trajectory and pad elasticity, overlap rate of abrasive track was calculated by analyzing the probability density function of the abrasive interval. A correction factor associated with lapping pad was proposed, and its value was determined. The updated surface roughness model of K9 glass was obtained, and it was verified through experiments. The results showed that after correction, error between model caculating R a of K9 glass and real R~ was controlled at less than 4%. The prediction accuracy of K9 glass surface roughness was greatly improved, guiding the lapping design effectively and improving processing efficiency

关 键 词：固结磨料研磨 表面粗糙度 预测模型 模型修正 

分 类 号：TG356.28[金属学及工艺—金属压力加工] TG58