超声振动辅助磨削SiC_(f)/SiC复合材料的频率和振幅影响研究  

Effect Reserch of Frequency and Amplitude of SiC_(f)/SiC Composites in Ultrasonic Assisted Grinding

作　　者：王儒康 苏宏华[1] 何静远 许鹏飞 韩大康 陈玉荣[1] WANG Rukang;SU Honghua;HE Jingyaun;XU Pengfei;HAN Dakang;CHEN Yurong(College of Mechanical and Electronic Engineering,Nanjing University of Aeromautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2024年第4期97-100,共4页Machine Building & Automation

摘　　要：针对超声振动频率和振幅对SiC_(f)/SiC复合材料磨削过程中的磨削力及工件表面粗糙度和微观形貌影响规律不明确的问题,在不同的振动频率和振幅下对SiC_(f)/SiC复合材料开展超声振动辅助磨削试验研究。结果表明:超声振动的引入可以有效降低磨削力和表面粗糙度,振动频率的提高可以有效降低磨削力和表面粗糙度,振幅的变化对磨削力和表面粗糙度的影响不大;超声振动的引入促使纤维断裂,磨屑中纤维的长度下降,有助于表面加工质量的提高。With regard to the lack of clearance about the influence of ultrasonic vibration frequency and amplitude on the grinding force,surface roughness and microstructure of SiC_(f)/SiC composites during grinding,this paper conducts the ultrasonic vibration assisted grinding experiments on SiC_(f)/SiC composites under different vibration frequencies and amplitudes.The results show that the introduction of ultrasonic vibration and the increase of vibration frequency both can effectively reduce the grinding force and surface roughness,but the change of amplitude has little effect on the grinding force and surface roughness.The introduction of ultrasonic vibration promotes fiber breakage,and the length of the fiber in the wear debris decreases,which helps to improve the surface processing quality.

关 键 词：SiC_(f)/SiC 超声振动辅助磨削 磨削力 表面粗糙度 表面微观形貌 

分 类 号：TG580.699[金属学及工艺—金属切削加工及机床]