Kumabe, J. (Utsonomiya Univ)
Fuchizawa, K.
Soutome, T.
Nishimoto, Y.

Source: Precision Engineering, v 11, Apr, 1989, p 71-77

Abstract: In this paper it is shown that the precision machining of ceramics can be achieved using ultrasonic superposition vibration cutting of ultrasonically vibrated ceramics (USVC). Analytical results are confirmed by experiments using a new 50 Hz vibration cutting device with an ultrasonically vibrated tool on ceramic surfaces. By using this new cutting process, a cutting volume of 25 mm² × 0.02 mm per 6 s is obtained, and a cutting surface roughness of 1-6 μm R_max is achieved. In addition, it is found that tool and machined surface temperatures do not rise, owing to the low load and speed. It is proposed that adding high frequency vibration stress to ceramics, which have a tensile stress weakness, is the basis for the precise and efficient cutting of ceramics.