氧化锆陶瓷微尺度磨削表面质量试验研究  

Experimental Study on Surface Quality in Micro-scale Grinding of Zirconia Ceramics

作　　者：周云光[1] 田川川 马廉洁[1] 毕长波 ZHOU Yun-guang;TIAN Chuan-chuan;MA Lian-jie;BI Chang-bo(School of Mechanical Engineering&Automation,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2022年第1期83-88,共6页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51905083,51975113);河北省自然科学基金资助项目(E2019501094);河北省高等学校科学研究项目(QN2019321);中央高校基本科研业务费专项资金资助项目(N2123025)。

摘　　要：为提高氧化锆陶瓷零件微细加工过程中的加工表面质量,改善氧化锆陶瓷零件的使用寿命,采用0.9 mm磨头直径、500#磨粒的微磨棒对氧化锆陶瓷进行微尺度磨削三因素五水平正交试验.首先通过极差和方差分析,研究了磨削参数影响氧化锆陶瓷表面质量主次因素;其次优化出获得较低表面粗糙度值的工艺参数组合;最后通过单因素试验研究氧化锆陶瓷磨削表面粗糙度随磨削参数的变化规律.结果表明,磨削参数对表面粗糙度影响顺序依次为:磨削深度、进给速度、主轴转速;当主轴转速v_(s)=40000 r/min,进给速度v_(w)=20μm/s,磨削深度a_(p)=3μm时,表面粗糙度最小;表面粗糙度随主轴转速增大呈先下降后上升的趋势,随进给速度和磨削深度的增大而增大.To improve the surface quality of zirconia ceramic parts in the process of micro machining and improve the service life of zirconia ceramic parts,orthogonal experiments of three factors and five levels on zirconia ceramics were performed using a micro-grinding tool with 500#grains and 0.9 mm diameter.Firstly,through range analysis and variance analysis,the main influencing factors for the micro-grinding surface roughness of zirconia ceramics were studied.Then,the micro-grinding process was optimized to obtain the minimum surface roughness.Finally,the effect of process parameters on the surface roughness of micro-grinding zirconia ceramics was analyzed through the single-factor experiment.The results showed that the major and minor order of the effect of various process parameters on the surface roughness is the grinding depth,the feed speed and the spindle speed.The optimized parameter combination was as follows:the spindle speed v_(s)=40000 r/min,the feed rate v_(w)=20μm/s and the grinding depth a_(p)=3μm,the surface roughness being minimum.The surface roughness decreases first and then increases with the increase of spindle speed,and increases with the increase of feed speed and grinding depth.

关 键 词：微磨削 氧化锆陶瓷 磨削参数 表面粗糙度 磨削表面质量 

分 类 号：TH161[机械工程—机械制造及自动化]