구멍 가공에서 바이트의 길이와 표면조도와의 관계에 관한 연구

The Study on the Correlation Between Protruded Tool Length and Surface Roughness in Inner Cutting by a Turning Machine

The paper is on the study of correlation between protruded tool length and surface roughness in inner turning. The purpose of the study is to find out the correlation between protruded tool length and surface roughness in inner cutting by a turning machine. The experiment has been performed in various cutting conditions, protruded tool lengths and cutting speeds, with the inserted cermet tool tip(CT10). Surface roughness of the machined parts in various conditions has been measured by surface roughness measuring machine MITUTOYO-402. From the experimental results, The conclusions are as follows : Surface roughness of machined part can be kept in good under the condition, that the protruded length is 4 times of the cutting tool diameter , and the roughness is independent to the cutting speed in the condition.