作者：闫艳燕；张琳；张成

第一作者单位：河南理工大学机械与动力工程学院

摘要：为解决硬脆材料超精密加工难题,提出将超声加工与金刚石飞切相结合的方法,对纳米氧化锆陶瓷超声辅助金刚石飞切超精密加工展开研究,首先从理论上,分别对普通金刚石飞切与超声辅助金刚石飞切的加工特点进行分析,建立了2种情况下的理论粗糙度数学模型,分析了各种加工因素对其加工表面粗糙度的影响规律,之后进行对比正交试验,分别分析了主轴转速,进给量以及背吃刀量等加工参数对纳米氧化锆陶瓷已加工表面粗糙度的影响规律,试验结果表明,超声辅助金刚石飞切技术适合于纳米氧化锆陶瓷等硬脆材料的精密超精密加工。

Abstract：In order to solve the problem of ultra precision machining of hard and brittle materials,the combination of ultrasonic machining with diamond fly-cutting was proposed，and the ultrasonic machining assisted diamond fly-cutting of nano zirconia ceramics was studied.Firstly,the machining characteristics of diamond fly-cutting and ultrasonic assisted diamond cutting were analyzed in theory,secondly,mathematical models for the theoretical roughness of the two cases were established,and the influences of various processing factors on the surface roughness of the machined surface were analyzed,finally,the orthogonal experiment was carried out.It was analyzed that the spindle speed,feed rate and cutting parameters cutting depth have processing effects on surface roughness of the nano zirconia ceramic.The results show that ultrasonic assisted diamond cutting technique is suitable for ultra precision machining of hard and brittle materials such as nano zirconia ceramics.

基金：国家自然科学基金资助项目(51575163)；

关键词：金刚石飞切;超声辅助加工;纳米氧化锆陶瓷;粗糙度模型;

DOI：10.16186/j.cnki.1673-9787.2018.01.013

分类号：TQ174.6