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Detecting flaws during welding

Recent technological advances have meant that it is now be possible to perform non-destructive testing (NDT) during welding, with all the associated economic and programme advantages. Recent developments in real time radioscopy, ultrasonics and signal processing have been exploited, adapting them for on-line flaw detection during welding. The problems of unfavourable weld geometry, hostile environment and need for automated defect recognition have been overcome. Final demonstration trials were performed in a factory environment.


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