A Basic Study on the Drilling of Hard and Brittle Materials Subjected to Vibration by Collision at Low Frequency

Abstract

A drilling method using low frequency vibration and some experimental results for ceramic materials have been discussed in this paper. In the drilling machine, the vibration due to a collision generated by a coil spring and an electromagnetic clutch is applied to the rotation tool and the tool drills a soda glass as a workpiece in the slurry supplied on the machining surface. As a result, it is evident that the machining efficiency is increased by means of enlarging the position of the collision, and by increasing the rotational number of the tool and the frequency when the amplitude is constant.