抄録
Ultra precision steel cutting using geometrically defined single crystal diamond cutting tools is normally handicapped by excessive chemical tool wear. But when the ultrasonic elliptical vibration cutting is applied, it has been reported that tool wear is considerably reduced and fine surface was obtained. The reason is thought to be because the cutting takes place intermittently, and reduces chip thickness and cutting force. End milling is commonly used to produce micro free curved surfaces. This method is one form of intermittent cutting, and chip thickness can be controlled. In this paper, end milling was performed to cut steel. The work material was stainless steel (SUS420J2) 2 mm × 5 mm in size. The major experimental conditions used were a clearance angle of 20°, a swing radius of 2 mm and a rotation rate setting of 100,000 min^<-1>. The experimental results show that tool wear was reduced and machined surface had high surface quality under those conditions.
