超声振动辅助磨削SiCf/SiC复合材料的频率和振幅影响研究
Effect Reserch of Frequency and Amplitude of SiCf/SiC Composites in Ultrasonic Assisted Grinding
王儒康 1苏宏华 1何静远 1许鹏飞 1韩大康 1陈玉荣1
作者信息
- 1. 南京航空航天大学 机电学院,江苏 南京 210016
- 折叠
摘要
针对超声振动频率和振幅对SiCf/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SiCf/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.
Abstract
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 SiCf/SiC composites during grinding,this paper conducts the ultrasonic vibration assisted grinding experiments on SiCf/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
SiCf/SiC/超声振动辅助磨削/磨削力/表面粗糙度/表面微观形貌Key words
SiCf/SiC/ultrasound-assisted grinding/grinding force/surface roughness/surface micro-topography引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据