Reducing energy consumption in the metal cutting industry is one of the main challenges of today. To enable reductions in energy consumption, it is of great importance to develop models for monitoring energy consumption. In this paper, the total energy consumption of machine tool during face milling was investigated. The energy consumption model of the face milling operation is analyzed. Experiments were carried out in wet condition as per Taguchi’s L9 orthogonal array. The cutting parameters were depth of cut (0.6, 1.0, 1.6 mm), cutting speed (120, 177, 260 m/min) and feed per tooth (0.04, 0.06, 0.10 mm/tooth). In this experiments, the workpieces material was medium carbon steel blanks (C45). Based on nine experiments, the observed model showed great reliability. The largest deviation was 7.5% and the smallest deviation was 0.7%. Based on these deviation values, it was concluded that the observed model can be reliably used to calculate the total energy consumption of the machine tool in face milling.
