期刊
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
卷 91, 期 5-8, 页码 2347-2358出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00170-016-9931-3
关键词
Ultrasonic vibration-assisted end grinding; Surface topography; SiCp/Al composites; 3D surface roughness; 3D surface fractal dimension
资金
- National Natural Science Foundation of China (NSFC) [51375119]
The surface quality in ultrasonic vibration-assisted end grinding of SiCp/Al composites is important as it influences the performance of the finished surface to a great extent. This paper presents a comprehensive analysis to characterize the machined surface topography with 3D surface roughness (S (q), S (sk), and S (tr)) and 3D surface dimension D (s). The results show that the main factors influencing surface roughness S (q) is the spindle speed and followed by vibration amplitude, cutting depth, and feed rate. Surface fractal dimension D (s) represents the ability of space filling of the machined surface and shows a weak-negative correlation with surface roughness S (q). Compared with S (q), D (s) is more sensitive to the pit which is the main defect of machined surface. A large value of surface fractal dimension D (s) corresponds to a better and exquisite surface finish. The main factors effecting the surface fractal dimension D (s) are spindle speed and feed rate, and influencing degree of these two factors is similar. The influence order of process parameters on D (s) is: feed rate > spindle speed > vibration amplitude > cutting depth.
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