Monitoring machining conditions by infrared images

Joao Eduardo Borelli; Luis Gonzaga Trabasso; Adilson Gonzaga; Reginaldo Teixeira Coelho

doi:10.1117/12.420981

23 March 2001 Monitoring machining conditions by infrared images

Joao Eduardo Borelli, Luis Gonzaga Trabasso, Adilson Gonzaga, Reginaldo Teixeira Coelho

Proceedings Volume 4360, Thermosense XXIII; (2001) https://doi.org/10.1117/12.420981
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

During machining process the knowledge of the temperature is the most important factor in tool analysis. It allows to control main factors that influence tool use, life time and waste. The temperature in the contact area between the piece and the tool is resulting from the material removal in cutting operation and it is too difficult to be obtained because the tool and the work piece are in motion. One way to measure the temperature in this situation is detecting the infrared radiation. This work presents a new methodology for diagnosis and monitoring of machining processes with the use of infrared images. The infrared image provides a map in gray tones of the elements in the process: tool, work piece and chips. Each gray tone in the image corresponds to a certain temperature for each one of those materials and the relationship between the gray tones and the temperature is gotten by the previous of infrared camera calibration. The system developed in this work uses an infrared camera, a frame grabber board and a software composed of three modules. The first module makes the image acquisition and processing. The second module makes the feature image extraction and performs the feature vector. Finally, the third module uses fuzzy logic to evaluate the feature vector and supplies the tool state diagnostic as output.

Citation Download Citation

Joao Eduardo Borelli, Luis Gonzaga Trabasso, Adilson Gonzaga, and Reginaldo Teixeira Coelho "Monitoring machining conditions by infrared images", Proc. SPIE 4360, Thermosense XXIII, (23 March 2001); https://doi.org/10.1117/12.420981

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