Abstract
The machinability in micro drilling depends on the ability of chip removal. This paper deals with cavitation effects in cutting fluid using the ultrasonic vibration in order to activate the chip control. The thrust component is observed when drilling SUS304 by (TiAl)N coated tool of a 0.2mm diameter. In addition, the behavior at cavitation is observed in order to clarify the feature of this method. The application of ultrasonic vibration to cutting fluid restrains an upward tendency of thrust component. The amplitude of cavitation movement depends on the distance between horn and hole.
