Force and temperature monitoring system for turning processes

Abstract

Quality improvement and cost reduction drives the development of equipment to measure and control the main process variables in mechanical manufacturing. Particularly, in material removal processes, the monitoring of force, temperature and vibration can lead to process optimization and early failure detection. Following this concept, this paper presents de development of a system to monitor the cutting force and the temperature at the tool-chip interface. The force is directly measured using strain gauges in the tool system. Although this is a simple set-up, it is useful to test the complete monitoring system. Whereas, the cutting temperature is estimated using the measurement of a thermocouple placed in the base of the cutting tool together with
an iterative filter. Finally, the detailed implementation is presented and experimental results from turning operations are shown.