Abstract
There are great anticipation of high quality machined components using difficult-to-cut metals such as stainless steel having excellent mechanical and chemical properties. The high accuracy cutting technic of stainless steel has been increasingly required in a wide field of industries. The diamond bite which is generally used to produce, by cutting, ultra-precision components are not sufficiently successful to face-turn the stainless steel. The tool life of the diamond bite is too short to produce the ultra-precision components. In this research, three kind of commercial cutting bite is used for ultra-precision cutting of stanless steel SUS 316. We found that the special coated cemented carbide is found available for ultra-precision cutting of stainless steel SUS316, because the bite wear is so small and the finished surface roughness is smoother than about 100nm(P-V). The surface roughness of face turned stainless steel is influenced considerably by the tool wear and accretion of workpice matel as stainless steel.