Energetic modeling of a micro-EDM machine

The energetic model of a micro-EDM machine is presented. The model considers the energy required by the axis drivers, the micro-EDM generator, the air compressor and the chiller of the dielectric fluid. The model parameters have been experimentally identified during the micro-EDM machining of a blind hole. The resulting model is quite accurate and presents very small errors with respect to the actual energy used. However, the model is quite sensitive to the estimation of the machining time, which is provided by the CAD/CAM