Determination of the calculus relations of the cutting tool wear and the cutting speed at drilling of the steel 2NiCr185

This paper presents the experimental results obtained at drilling of the stainless steel 2NiCr185. The experimental data and their further processing represent the original contribution of the authors to the estimation of the polytropic exponents and to the assessment of the terms from the calculus relation structure of the cutting tool wear. The paper contains graphs for the variation of the cutting tool wear with the parameters of the cutting technology. Putting the condition of the wear limitation, from the obtained relation, the exact values of the cutting speed are determined. These results can be taken into consideration in the theoretical technical research. Also, they can be implemented in the manufacturing activity.