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NDT.net Issue - 2017-12 - NEWS
2017-12 NDT.net Journal,

Rapid PAUT of Bolts for the Fatigue / Corrosion Cracks


Sonotron NDT66, Rehovot, Israel
 
NDT.net Journal
Issue: 2017-12
The inspection is performed from the nut side with the use of the spanner-like delay line, which is applied to the bolt end with the use of coupling gel. The opposite side of delay line is manufactured in the form of hollow cylinder, which’s bottom is covered by the coupling media as well. The cylindrically shaped probe holder containing a slot for the reduced contact face PA probe is placed inside the delay line’s cup providing the correct positioning of the probe.

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The inspection is performed with the use of portable PA instrument of ISONIC series (ISONIC 3510, 2010, 2009 UPA Scope) running the EXPERT-SHAFT application through the guided circumferential sliding of the probe above the delay line performed upon the PA Pulser receiver is calibrated and the dimensions of the bolt have been entered. The true-to-geometry intuitively interpretable imaging is provided. When necessary the complete revolution data may be recorded and presented in the form of C-Scan or 3D-image. The video of the process illustrating the scanning of the performance demonstration block is shown below:

The related links:

Sonotron NDT

More of Sonotron NDT published in NDT.net
2019-04-01: PAUT: Inspection of complex geometry fracture critical parts – manual probe manipulation
2019-03-01: PAUT: Corrosion detection/survey under shell/tank bottom repairs using lap-welded patch plates
2019-02-01: PAUT: In-Service Corrosion Survey of Critical Zone in the Annular Rings in the Above Ground Storage Tanks
2018-11-01: Toggling between S-Scan and FMC/TFM coverage whilst inspecting simple and complex geometry welds and other structural elements
2018-11-01: PAUT and Conventional Modality for the Materials Characterization using Frequency Domain Signal Presentation (FFT)
2018-10-01: Short Range Guided Wave Inspection – Annular Rings with Narrow Outer Chime
2018-09-01: MULTIGROUP T – the new inspection modality combining live S-Scan and FMC/TFM coverage out of the same PA Probe
2018-08-01: Complete PAUT Solution for the In-Service Inspection of Annular Ring Plates in the Above Ground Storage Tanks
2018-07-01: Sonotron NDT Brings the Annual Verification (Calibration) of PAUT Instruments to the Overnight Automatic Procedure at the Premises of the Instrument Owners
2018-06-01: PAUT: Rapid Detection and Evaluation of the Fatigue Cracks in the Web-to-Outboard End Pad Fillet Radius at Lower Wing Attach of an Aircraft
All 66 Articles & News of Sonotron NDT in NDT.net

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