Assessment of cutting performance and chip breaking characteristics with a nondimensional parameter consists of cutting condition and tool shape factor(l) -Orthogonal cutting-

절삭 조건과 공구 형상 인자로 구성된 무차원 파라미터에 의한 절삭 성능 및 칩절단 특성 평가(I)

In this study a nondimensional parameter, feed/land length(F/L) was introduced, and using this parameter, cutting performance and chip breaking characteristics of the groove and the land angle type chip formers were assessed. Specific cutting energy consumed and shape of broken chip with its breaking cycle time were appraised to find out the ranges of F/L value where efficient cutting and effective chip breaking could be achieved. C type chip was found out to be the most preferable in terms of cutting efficiency.