氧化铝陶瓷旋转超声铣磨加工表面粗糙度研究  

Surface Roughness of Alumina Ceramics Processed by Rotary Ultrasonic Grinding

作　　者：王磊[1] 董金善[2] 杨林娟 WANG Lei;DONG Jin-shan;YANG Lin-juan(School of Mechanical Engineering,Nantong Vocational University,Nantong 226007,Jiangsu,China;School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,Jiangsu,China)

机构地区：[1]南通职业大学机械工程学院,江苏南通226007 [2]南京工业大学机械与动力工程学院,江苏南京211816

出　　处：《矿冶工程》2022年第4期130-133,138,共5页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(52175171);江苏高校“青蓝工程”资助项目(苏教师[2019]3号)。

摘　　要：通过氧化铝陶瓷普通铣磨与旋转超声铣磨加工对比试验,分析了加工工件表面粗糙度随超声功率、砂轮线速度、进给速度、铣磨深度以及砂轮粒度的变化规律。结果表明:超声功率由0增大至90 W时,工件表面粗糙度下降,表面形貌得到改善;随着砂轮线速度增大、进给速度和铣磨深度减小,旋转超声铣磨和普通铣磨工件表面粗糙度均呈下降趋势,在砂轮线速度1.09~5.49 m/s、进给速度100~550 mm/min、铣磨深度7~22μm条件下,旋转超声铣磨相比于普通铣磨的表面粗糙度最大降幅19.3%。相比于80^(#)砂轮,170^(#)砂轮旋转超声铣磨后的表面粗糙度最大降幅23.1%,表面形貌相对更好。Based on the comparative testing on processing alumina ceramics respectively by traditional grinding and rotary ultrasonic grinding,the variation of workpiece roughness with factors,such as ultrasonic power,linear velocity of grinding wheel,feeding speed,grinding depth and granularity of grinding wheel,was analyzed.With the ultrasonic power increasing from 0 to 90 W,the workpiece roughness decreases,showing an improvement in the surface topography.By increasing the linear velocity of grinding wheel,while decreasing feeding speed and grinding depth,the degrees of surface roughness of workpiece processed by two methods are on the decline.It is found that with the linear velocity of grinding wheel in the range of 1.09-5.49 m/s,feeding speed at 100-550 mm/min and grinding depth of 7-22μm,the degree of roughness of workpiece processed by rotary ultrasonic grinding can be reduced by maximally 19.3%in comparison with the traditional grinding.Furthermore,by using ultrasonic grinding with 170^(#)grinding wheel instead of 80^(#)grinding wheel,the workpiece can have the degree of roughness reduced by maximally 23.1%,presenting a better surface topography.

关 键 词：旋转超声 氧化铝陶瓷 表面粗糙度 工艺参数 砂轮粒度 铣磨加工 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]