ULTRASONIC VIBRATION CUTTER

摘要

There is disclosed an ultrasonic vibration cutter having one or more cutter components which can be conveniently replaced if necessary. There is provided an ultrasonic vibration cutter for cutting a workpiece with a cutter installed on a resonator which resonates with ultrasonic vibration having a predetermined frequency. Since the cutter is installed at the minimum amplitude point or in the vicinity thereof, vibration in a cutting direction can be efficiently given to the cutter so that cutting can be carried out efficiently. The resonator has a large diameter portion and a male screw portion projecting coaxially from one end surface of the large diameter portion. The cutter, having a cutting blade on a disk-shaped peripheral portion thereof, is fitted onto the male screw portion, and a nut is fastened to the male screw portion projecting from this cutter to install the cutter detachably in such a manner that the cutter is located at the minimum vibration amplitude point of the resonator with the nut and the large diameter portion. The cutter can be fixed firmly with the fastening force of the nut.