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Imaging of flange bore internal defects using phased array ultrasonic testing

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The ability of phased array ultrasonic testing (PAUT) to adapt to a large range of applications has led to its prevalence within the non-destructive testing (NDT) industry. There are, however, demonstrated weaknesses in its use when inspecting non-parallel surfaces with unknown dimensions. One such example is flange bore inspection. Utilising simulation and real-world testing, this paper proposes and evaluates the use of a wide-angled sweep method, used in conjunction with compound scan imaging for flange bore inspection. It is concluded that the wide-angle sweep method is capable of determining the required parameters to allow for inspection and that compound scan imaging provides the best means of visualisation for defect detection and sizing.

Document Type: Research Article

Publication date: September 1, 2019

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