Abstract
This paper presents 3D FEM simulation results and their experimental verification performed for turning operations of Inconel 718 heat resistant superalloy using updated J-C (Johnson-Cook) material constitutive model. Machining tests were carried out using grooved carbide cutting tools coated with a TiAlN monolayer without coolants. The selection of machining conditions was based on real production data explored from aircraft plants. The simulations include cutting forces, cutting temperature, plastic deformation in the cutting zone and chip formation. The reference values of friction coefficient were determined using pin-on-disc tribometer. Finally, FEM simulations were compared with measurements in order to highlight the effect of friction coefficient on the chip formation, cutting forces and cutting temperature.
