In situ strain monitoring in gas tungsten arc welding processes | IEEE Conference Publication | IEEE Xplore

In situ strain monitoring in gas tungsten arc welding processes


Abstract:

Strain/stress evolution during welding is essential to understand material's mechanical behavior and the formation of weld defects such as distortion, cracks and residual...Show More

Abstract:

Strain/stress evolution during welding is essential to understand material's mechanical behavior and the formation of weld defects such as distortion, cracks and residual stresses. In-situ measurement of strain has been very challenging due to the impact from high temperature and intense arc light. In this work, a newly-developed integrated optical system was utilized to monitor material's thermal and strain field adjacent to the fusion line during GTAW process. It was found that the variation of the measurement data could be positively correlated to the change of welding parameters and the characteristics of the final weldment. The purpose of this work is to develop a real-time welding quality monitoring system to proactively prevent the formation of certain weld defects.
Date of Conference: 12-15 July 2016
Date Added to IEEE Xplore: 29 September 2016
ISBN Information:
Conference Location: Banff, AB, Canada

References

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