The modelling of cutting forces occuring on turned AISI 4340 material by the finite elements method

In this study, the cutting forces occuring during the turning of AISI 4340 material has been analyzed both experimentally and numerically. For this purpose, machining tests were carried out under orthogonal cutting conditions that used different cutting tools such as coated (TiCN+Al2O3+TiN, Al2O3) and uncoated cutting tools. The cutting forces were measured by means of 9257B type Kistler dynamometer. Experimental results obtained from cutting test were compared with numerical results. Deform 2D finite element package program was used and Johnson-Cook material model was assigned as a material model in the numerical analysis. After machining tests, the experimental and numerical results based on cutting parameters and cutting tool types were compared. It was observed that experimental and numerical results overlapped each other. Additionaly, cutting temperature and tool stress occuring for each cutting tool and cutting parameters during machining tests were obtained.