Monitoring TIG welding using infrared thermography – simulations and experiments

• Autorzy: Sreedhar, U. , Krishnamurthy, C. V. , Balasubramaniam, K.

Warianty tytułu

PL

Monitorowanie spawania z nietopliwą elektrodą wolframową w osłonie gazów obojętnych z użyciem termografii – symulacje i eksperymenty

• Języki publikacji: EN

Abstrakty

EN

In the current work a 3D model has been developed to predict the thermal cycles during the Tungsten Inert Gas welding of Aluminum 2219. This paper describes the step by step procedure adopted to get the actual cooling rate during the TIG welding process both experimentally and numerically. The model was developed in the COMSOL Finite Element Package and considered a Gaussian heat distribution. The developed model then validated using the experimental data collected in field experiments on actual large propellant tanks. Temperature measurements were performed using Infrared Camera. Results show a close comparison between model and experiment.

PL

W pracy opracowano model 3D do przewidywania cykli cieplnych podczas spawania Aluminum 2219 z nietopliwą elektrodą wolframową w osłonie gazów obojętnych. Artykuł prezentuje krok po kroku przyjętą procedurę określania właściwego tempa chłodzenia (w eksperymencie jak i w modelowaniu numerycznym) podczas spawania. Model został stworzony w programie Comsol z gaussowskim rozkładem ciepła. Model numeryczny został porównany z danymi eksperymentalnymi. Pomiary temperatury wykonywano z użyciem kamery na podczerwień. Otrzymane wyniki pokazują dobrą zbieżność modelu z eksperymentem.

Słowa kluczowe

PL

termografia podczerwona; ciągły monitoring; metoda elementów skończonych; analiza obrazu

EN

infrared thermography; online monitoring; finite element method; image analysis

• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2016
• Tom: R. 92, nr 4
• Strony: 6--9
• Opis fizyczny: Bibliogr. 17 poz., rys., wykr.

Twórcy

autor

Sreedhar, U.

• IITM,

autor

Krishnamurthy, C. V.

• IITM,

autor

Balasubramaniam, K.

• IITM,

Bibliografia

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• [7] U. Sreedhar, C. V. Krishnamurthy, K. Balasubramaniam, V. D. Raghupathy, and S. Ravisankar, “Automatic defect identification using thermal image analysis for online weld quality monitoring,” J. Mater. Process. Technol., vol. 212, no. 7, pp. 1557–1566, 2012.
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• [14] E. a Bonifaz, “Finite Element Analysis of Heat Flow in Single- Pass Arc Welds,” Weld. J., pp. 121–125, 2000.
• [15] C. L. Tsai and U. S. Design, “Heat Flow in Fusion Welding *,” in ASM Handbook 6A. Welding Fundamentals and Processes, vol. 6, 2011, pp. 55–66.
• [16] J. Goldak, A. Chakravarti, and M. Bibby, “A New Finite Element Model for Welding Heat Sources,” vol. 15, no. June, pp. 299–305, 1984.
• [17] U. Sreedhar, C. V Krishnamurthy, and K. Balasubramaniam, “Non-Destructive Evaluation Modeling and Simulation for Temperature Prediction in Welding Using Infrared Thermography,” no. August 2015, pp. 396–400, 2009.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.

Identyfikatory

DOI

10.15199/48.2016.04.02