Search results for "artificial defects"

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Ultrasonic phased array inspection of wire plus arc additive manufacture samples using conventional and total focusing method imaging approaches

2019

In this study, three aluminium samples produced by wire + arc additive manufacture (WAAM) are inspected using ultrasonic phased array technology. Artificial defects are machined using a centre drill, ø 3 mm, and electrical discharge machining (EDM), ø 0.5-1 mm, in a cylindrical through-hole topology. The samples are first inspected using a single-element wheel probe mounted on a KUKA robot in order to investigate the feasibility of using a conventional ultrasonic transducer approach. Unfortunately, the wheel probe is found to be unsuitable for scanning the WAAM specimens and ultrasonic phased arrays are employed next. The set-up includes 5 MHz and 10 MHz arrays (128 elements) in direct cont…

Materials sciencebusiness.product_categoryartificial defectsArtificial defects Full matrix capture (FMC) Total focusing method (TFM) Ultrasonic phased array Wire + arc additive manufacture (WAAM)Phased arrayApertureController (computing)AcousticsTK0211 other engineering and technologies02 engineering and technologytotal focusing method (TFM)01 natural sciencesSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineMachiningwire plus arc additive manufacture (WAAM)0103 physical sciencesMaterials Chemistry010301 acoustics021103 operations researchDrillMechanical EngineeringMetals and Alloysfull matrix capture (FMC)Sample (graphics)Wedge (mechanical device)Mechanics of Materialsultrasonic phased arrayUltrasonic sensorbusiness
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Ultrasonic phased array inspection of wire plus arc additive manufacture ‎‎(WAAM) samples using conventional and total focusing method (TFM) ‎imaging…

2018

In this study, three aluminium samples produced by wire + arc additive manufacture (WAAM) are inspected using ultrasonic phased array technology. Artificial defects are machined using a centre drill, ø3 mm, and electro-discharge machining (EDM), ø0.5-1 mm, in a cylindrical through hole topology. The sample was first inspected by a single element wheel probe mounted on a KUKA robot in order to investigate the feasibility of using a conventional ultrasonic transducer approach. Unfortunately, the wheel probe was found to be unsuitable for scanning of the WAAM specimens and ultrasonic phased arrays were employed next. The setup included 5 MHz and 10 MHz arrays (128 elements) in direct contact w…

Ultrasonic phased arraySettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineWire + Arc additive manufacture (WAAM)Full matrix capture (FMC)Total focusing method (TFM)Artificial defects
researchProduct