engleski

Monitoring of cutting tool wear by using control system signal

Safety and reliability of operation of industrial manufacturing processes is a very important prerequisite of the economic productivity. Sudden process disturbances such as collision, overload, breakdown and tools wear are not fully understandable, and cause production system failures. In order to prevent the effects of excess behaviour regarding wear or eventually tool breakdown, modern technological systems pay particular attention to predicting tool condition. Numerous theories of monitoring are trying to classify and explain tools wear, but none have given any satisfactory results as yet, at the same time insuring flexible, simple and price-regarding acceptable process control. Open structure of modern digital control opens up new possibilities and prospects in this respect. In many cases, the combination of digital plant signals and internal data of the machine control system, along with advanced methods of signal analysis can replace the external control systems. The integration of process control software module into the machine control system allows fast reactions should there be any process disturbances, without any additional hardware expansion. This paper studies the sensitivity of signals contained in the control system to the cutting tools wear processes in face turning.

tool condition monitoring; open control system; signal sensitivity; face turning

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