鏡面切削における定常微小振動の切削粗さへの影響

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タイトル別名
  • Influence of steady vibration with small amplitude upon surface roughness in diamond machining.
  • キョウメン セッサク ニ オケル テイジョウ ビショウ シンドウ ノ セッサク

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抄録

Steady vibrations with small amplitude and low frequency usually remain in precision diamond machine tools even supported on air mounts, and inevitably deteriorate cut surfaces roughness. Analysing an enveloping curve of feed marks disturbed by such a steady vibration, the surface roughness is estimated as the function of both the ratio of vibration amplitude to theoretical roughness, and the phase lag of the vibration to work rotation. This makes it clear that the roughness can be reduced to 20-30% of the sum of the theoretical roughness and a vibration amplitude at optimal cutting conditions. The analytical results are proved in experiments cutting Al alloy with straight and round tools. The lathe used for the experiment was oscillated at 5.8Hz frequency, 0.03μmp-p relative amplitude between a tool and a workpiece, by the disturbance from the floor. These results show that straight tools are more effective for improving surface roughness than round ones, and provide a surface roughness within 0.01μmRmax during the above-mentioned vibration.

収録刊行物

  • 精密工学会誌

    精密工学会誌 53 (5), 782-788, 1987

    公益社団法人 精密工学会

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