Planetary motion combined with two-dimensional vibration-assisted magnetic abrasive finishing

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• 作者：Yi-Hsun Lee ; Kun-Ling Wu ; Chung-Ting Bai…
• 关键词：Planetary motion combined with two ; dimensional vibration ; assisted magnetic abrasive finishing (PM ; 2DVAMAF) ; Two ; dimensional vibration ; assisted MAF (2D VAMAF) ; Magnetic abrasive finishing (MAF) ; Vibration assistance ; Stainless steel ; Surface roughness
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：76
• 期：9-12
• 页码：1865-1877
• 全文大小：3,035 KB
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• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015

文摘

This study develops a new surface polishing approach by combining planetary motion (PM) with two-dimensional vibration-assisted magnetic abrasive finishing (PM-2DVAMAF). Planetary motion involves both rotation and revolution, thus generating radial acceleration, which strengthens the normal force exerted on the workpiece surface, and in turn enhances the cutting power of the abrasives and their polishing performance. Assisted by two-dimensional vibration, PM results in uniform, intersecting, and closely packed polishing paths, which contribute to better surface quality within a shorter processing time. This study also uses the Taguchi experimental design method to obtain the optimal combination of PM-2DVAMAF parameters for surface roughness improvement. The optimal combination obtained includes working gap, 1?mm; amplitude of vibration, 0.1?mm; particle size of steel grit, 0.125?mm; weight of SiC, 3?g; weight of steel particles, 0.5?g; weight of machining fluid, 5?g; frequency of vibration along the X- and Y-directions, 16.67?Hz; and rotational speed of magnet, 500?rpm. Experimental results reveal that 12.5-min PM-2DVAMAF under optimal combination of parameters can reduce surface roughness of a stainless steel SUS304 workpiece from 0.14 to 0.032?μm, an improvement rate of 77.1?%. PM-2DVAMAF can indeed improve surface quality with a short machining time and less abrasives required, both of which contribute to cost reduction and more environmentally friendly machining method in industry.