Basic Investigation on Cutting Edge Shape for Ultra-precision Cutting

Abstract

In our previous researches, the smooth wear surface of coated-cemented-carbide tool is found roughly to influence effectively on the ultra-precision face-turning of stainless steel. In the research, the changes of the wear surface roughness of cutting edge and the face-turned surface roughness of stainless steel with face-turning process are examined. In the basis of the results, the relationship between the wear surface roughness and the face-turned surface roughness is investigated and found to be closely correlative. The surface roughness of ultra-precision turned stainless steel SUS316 becomes below 50nm(Rz) until the cutting length of 1,000m and below 100nm(Rz) until the cutting length of 1500m, respectively.