Semi-Empirical Equations for Three Components of Resultant Cutting Force

Abstract

For the determination of adequate cutting conditions and the selection and design of both cutting tool and machine tool, not only the cutting force but also the feed force and thrust force must be known quantitatively. This paper presents the semi-empirical semi-theoretical equations for the three cdmponents of resultant cutting force. These equationa are dorived from theoretical equations by simplifying them using the empirical relations which exist in practical range of cutting conditions. Eaoh component is indicated as the function of depth of cut, feed, cutting speed, rake angle and opproach angle. For the work material, these equations include the specific forcesata standard set of cutting conditions, the coefficiantsof cutting speed and undeformed chip thickness, and the coefficientsof rake angle. These material constants are obtained from a series of cutting tests on each work material and approach angle.