Elliptical Vibration Cutting (4th Report). Development of Tool Vibration Control System and Its Application to Ultraprecision Cutting.

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  • 楕円振動切削加工法　４　　工具振動制御システムの開発と超精密切削への適用
  • ダエン シンドウ セッサク カコウホウ ダイ4ホウ コウグ シンドウ セイギョ システム ノ カイハツ ト チョウセイミツ セッサク エ ノ テキヨウ
  • Development of Tool Vibration Control System and Its Application to Ultraprecision Cutting
  • 工具振動制御システムの開発と超精密切削への適用

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Abstract

Anew tool vibration system is developed for the ultrasonic elliptical vibration cutting, and it is applied to ultraprecision cutting of hardened steel in the present research. A method and a device to remove crosstalks between the two directional vibrations are developed, so that the two directional vibrations can be controlled independently. Then, a controller is developed to keep the elliptical vibration to have a desired locus, where the amplitudes of the two directional vibrations, phase shift between them are kept to be desired values and the vibration frequency is locked to an average of their resonant frequencies. The developed vibration control system is applied to utraprecision diamond turning of hardened steel, and an ultraprecise steel mirror with a shape accuracy of about 0.1 μm is achieved.

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