탭의 형상이 절삭성능에 미치는 영향

The various geometry of tap been developed in order to tap special workmaterial at considerably higher cutting speed than that of the conventional HSS tap. In this paper a piezo type tool dynamomerer is constructed and used to measure the torque. The experimental tests are run with various cutting speed. It is clarified that the process of chip formation strongly depends on rake angle, relief angel, angel of twist.