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NDT Inspect (admin) replied to the discussion Is there ever a completely perfect metal production without flaws?8 hours agoIn practice, no. Every metal production process, whether casting, forging, rolling, welding, or additive manufacturing, introduces some level of discontinuity. The goal isn't a flawless product but one where any discontinuities present are below the size, type, and location that would affect the…
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Ekemini Edet asked Is there ever a completely perfect metal production without flaws? in the group General NDT Group16 hours agoIs there ever a completely perfect metal production without flaws?
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Mark Gilmour posted an update2 days agoPreparing for an NDT exam, or starting your apprenticeship?
(edited)
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Mohamed Allam started the discussion Inquiring about coloration in the group Phased Array Ultrasonics (PAUT)5 days agoSubject: Technical Support Request – PAUT and TOFD Calibration, Group Configuration, and Scan Plan for ADNOC Vessels and Towers Dear Technical Support Team, We are currently working on a project for ADNOC involving the inspection of vessels and towers with the following material thicknesses: - 18…
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5 days ago
Dear Technical Support Team, We are currently experiencing a software issue with both our OmniScan X3 PAUT 64-channel and 32-channel units. Both devices are running MXU software version 5.20. Problem Description: While inspecting the circumferential welds (CWLs) of a vessel, we divide the scanning…
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Mohamed Allam joined as NDT / inspection service provider5 days ago
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Mark Gilmour posted an update in the group Radiography5 days ago
A visible IQI wire tells you something important, but not everything.
In a simplified wire-to-thickness example, a 0.20 mm IQI wire is visible through 10 mm of material.
What percentage ratio is that?
More importantly, does it guarantee that every 0.20 mm crack would also be detected?
My explanation is below. This is a principle question, not a complete code-compliance assessment.
Answer: 2%.
(0.20 ÷ 10) × 100 = 2%
But no, that does not guarantee detection of every crack of a comparable size. An IQI is an image-quality reference, not a universal minimum-defect-size guarantee.
Crack orientation, the radiation path through the discontinuity and image contrast affect detectability. The applicable technique, IQI selection and acceptance requirements still need to be met.
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Mark Gilmour joined the group Radiography5 days ago
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