Parametric Investigation of the Effects of Inclination and Edge Direction Angles on Metal Cutting Process

The main goal of this paper is to determine the effects of inclination and edge direction angles \(\left({\lambda }_{s},\hspace{0.33em}{\kappa }_{r}\right)\) on metal cutting process. It is underlined that when \({\lambda }_{s}\) or \({\kappa }_{r}\) become different to zero, orthogonal cutting becomes oblique cutting, and some other parameters appear like radial force \({F}_{r}\) and chip flow angle \({\eta }_{c}\) . Based on a thermomechanical algorithm determined and validated in a previous study, effect of \({\lambda }_{s}\) , effect of \({\kappa }_{r}\) and coupled effect of the two parameters were studied. Edge direction angle has an effect on tangential cutting force \({F}_{c}\) and radial component \({F}_{r}\) however, inclination angle has an effect on all parameters like tool/chip contact length \({l}_{c}\) , chip flow angle \({\eta }_{c}\) , three cutting force components \(\left({F}_{c},{F}_{f},{F}_{r}\right)\) and tool/chip contact temperature. Orthogonal cutting represents a particular case in this study, and it is reached when \(\left({\lambda }_{s}=0^\circ ,\hspace{0.33em}{\kappa }_{r}=90^\circ \right)\) . Results determined in the present research work are important to understand the oblique cutting and to study the tribological phenomenon which occurs at the tool/chip contact.