Modelling of cutting force in end milling Inconel 718

Abstract Inconel 718 is a nickel-base alloy which is difficult to machine. A high cutting force is generated in machining this advanced material. This paper presents a study of the development of a mathematical model for average tangential cutting force in end milling Inconel 718 using uncoated carbide inserts under dry conditions. The predictive cutting force model has been developed in terms of cutting speed and axial depth of cut by response surface methodology. Response surface contours were constructed in feed-axial depth of cut planes by a computer. The model was tested by analysis of variance and found to be adequate.