극저온 절삭공구에 의한 가공특성의 규명과 예측

We experimented turning SCM440, called difficult-to-cut materials in general, using tungsten carbon tool(PIO) in order to elevate machinability by a new cutting method. The cutting tool designed and made to study was cooled to -17 $0^{\circ}C$ in about 1 minute by liquid nitrogen. Then, we operate...