Dave Utrata R & D, Center for NDE, Iowa State University, USA, Joined Feb 2000, 37
Dave Utrata R & D, Center for NDE, Iowa State University, USA, Joined Feb 2000 37
06:17 Jul-05-2000 Re: Volumetric Inspection of the Relief Valve Spring : I am looking for the detection of fatigue cracking.
Hello, Resonant inspection, as mentioned in the previous posting, would seem a very suitable candidate for such testing. If... the facts of the inspection challenge are as you state them. In my perspective, I read your statement as relating volumetric flaws to fatigue cracking. Surely you mean cracking that eminates from previously existant internal flaws? The problem doesn't seem quite intuitive to me, even though you have made a strong attempt to relate some specifics of the case. Sounds almost like you've got production quality issues to deal with instead of 'true' service degredation. Perhaps it would be helpful if you make any case histories of such failures available (via posting a suitable link) so we could have a closer look at your challenge. Seems a little contradictory to me, given the facts so far, or at least my reading of them.
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