On the Estimation of Tool-wear for Milling Operations based on Multi- Sensorial Data

This paper shows the results of a preliminary experimental investigation on tool-wear in end milling. Spindle torque and vibration signals were recorded during the process. A correlation between measured signals and tool-wear was attempted. The preliminary results showed a promising application laying the foundation for an experimental modelling approach of the toolwear phenomenon. Power consumption, as depicted from the current draw signal, can be associated with the sustainability evaluation of the milling operation, due to their directly correlation to the toolwear level.