Search results for " In-process inspection"

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A flexible robotic cell for in-process inspection of multi-pass welds

2020

Welds are currently only inspected after all the passes are complete and after allowing sufficient time for any hydrogen cracking to develop, typically over several days. Any defects introduced between passes are therefore unreported until fully buried, greatly complicating rework and also delaying early corrections to the weld process parameters. In-process inspection can provide early intervention but involves many challenges, including operation at high temperatures with significant gradients affecting acoustic velocities and, hence, beam directions. Reflections from the incomplete parts of the weld would also be flagged as lack-of-fusion defects, requiring the region of interest (ROI) t…

021103 operations researchComputer scienceTKMechanical EngineeringGas tungsten arc welding0211 other engineering and technologiesMetals and AlloysReworkProcess (computing)Mechanical engineering02 engineering and technologyWeldingWork in process01 natural scienceslaw.inventionSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineMechanics of MaterialslawRegion of interest0103 physical sciencesMaterials ChemistryRobotUltrasonic sensorRobotics In-process inspection Multi-pass welds010301 acoustics
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