摘要
为研究不同工具对超声辅助磨削后工件表面质量的影响,在超声振动方向垂直于磨削表面的条件下,采用电镀磨头与钎焊磨头,针对氧化锆陶瓷开展了超声辅助磨削试验,对2种磨头普通磨削及超声辅助磨削所获得的加工表面形貌及表面粗糙度进行了对比分析。结果表明,相同磨削用量条件下,电镀磨头磨削后的工件表面相对于钎焊磨头破碎现象有所加剧,表面质量较差;钎焊磨头磨削后工件表面塑性去除区域较电镀磨头增长明显;在超声辅助磨削条件下,钎焊磨头磨削后的工件表面粗糙度Ra的下降幅度最大为33.6%,优于电镀磨头磨削后的工件表面粗糙度Ra的最大下降幅度(25.7%)。
In order to study the influence of different tools on the surface quality of workpiece after ultrasonic assisted grinding,under the condition that the ultrasonic vibration direction is perpendicular to the grinding surface,the ultrasonic assisted grinding test of zirconia ceramics was carried out with electroplated grinding head and brazed grinding head.The machined surface morphology and surface roughness obtained by ordinary grinding and ultrasonic assisted grinding of two kinds of grinding heads were compared and analyzed.The results show that under the condition of the same grinding amount,the workpiece surface after grinding with electroplated grinding head is more broken than that with brazed grinding head,and the surface quality is poor;After grinding with brazed grinding head,the plastic removal area on the workpiece surface increases significantly compared with that with electroplated grinding head;under the condition of ultrasonic assisted grinding,the maximum reduction of workpiece surface roughness Ra after grinding with brazing grinding head is 33.6%,which is better than that after grinding with electroplated grinding head(25.7%).
作者
刘盛
丁凯
李奇林
徐铭洲
王许
LIU Sheng;DING Kai;LI Qilin;XU Mingzhou;WANG Xu(School of Mechanical Engineering,Jiangsu University of Technology,Changzhou 213001,China)
出处
《现代制造工程》
CSCD
北大核心
2023年第1期97-103,共7页
Modern Manufacturing Engineering
基金
江苏省重点研发计划项目(BE2022106)
国家自然科学基金青年项目(51805231,51905234)。
关键词
超声辅助磨削
氧化锆陶瓷
表面形貌
材料去除机理
表面粗糙度
ultrasonic assisted grinding
zirconia ceramics
surface morphology
material removal mechanism
surface roughness
