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• Main Authors: Jan-ning Chen, 陳占銘
• Other Authors: 顏炳華
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/61597729570544593904

碩士 === 國立中央大學 === 機械工程研究所碩士在職專班 === 95 === The study presents the polishing of screw surface by abrasive flow machining, which is propelled by itself. In the experiment, the effects upon working temperature, abrasive viscosity and surface roughness are discussed by controlling machining time, particle size, abrasive concentration and the rotation speed of spindle. Also, the influence of these parameters on the polished surface is observed. Thus, the best parameter setting could be obtained. The result of the experiment shows that the liquidity of abrasive would rise with the increasing of machining time. This property is beneficial for fine spiral polishing to achieve an ideal polishing effect. The better polishing effect could be obtained by using 4μm particle size, 50% of abrasive concentration,5 minutes machining time and 2500 rpm of rotation speed. The surface roughness can be effectively reduced from Ra 0.46μm to Ra 0.13μm.