About this Abstract |
| Meeting |
11th Conference on Trends in Welding Research + Additive Manufacturing (TWR+AM)
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| Symposium
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11th Conference on Trends in Welding Research + Additive Manufacturing (TWR+AM)
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| Presentation Title |
In-Situ Monitoring of Weld Pool Dimensions and Estimation of Cooling Rates to Enable Feedback Control and Non-Destructive Evaluation |
| Author(s) |
Gala Solis, Jonathan Malen, Sneha Prabha Narra |
| On-Site Speaker (Planned) |
Sneha Prabha Narra |
| Abstract Scope |
In this work, we evaluate the use of a commercial off-the-shelf camera for real-time monitoring of weld pool dimensions and cooling rates. Important to feedback control and non-destructive evaluation of welds is the ability to observe deviations in weld pool conditions, relate these deviations to potential defect formation, and correct them. The proposed solutions should be economically viable and add minimal size and weight burden for easy installation across a fleet of welding systems. We apply two-color thermography to color camera images to extract weld pool temperatures, which are then used to measure weld pool dimensions and estimate cooling rates during short-circuit welding. The trends in weld pool dimensions and cooling rates follow expected variations with wire feed speed and travel speed, and agree with ex-situ measurements and corresponding hardness variations. The results demonstrate the potential for economically viable, scalable weld pool monitoring to enable feedback control and non-destructive evaluation. |
| Proceedings Inclusion? |
Undecided |