抄録
This paper highlights the influence of tool wear on the energy balance in precision hard turning using CBN cutting tools. Experimental plan includes continuous measurements of the tool nose wear VB_C and the corresponding changes of component forces F_c , F_f and F_p . Variable factors were feed rate, depth of cut and tool nose radius. The experimental data were recorded during wear test duration of maximum 100 min. As a result, the specific cutting and ploughing energies were determined for all measuring points. It was reasoned that the balance between the specific and ploughing energies can effectively be used to optimize hard machining operations.
