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Re: Magnaflux

To: shop-talk@Autox.Team.Net, Brian Kelley <bkelley@ford.com>
Subject: Re: Magnaflux
From: "Paul Hammarstedt" <wfme@mail.mc.net>
Date: Wed, 5 Mar 1997 21:22:02 +0000
> > I'm by no means an expert, but my understanding is that magnafluxing
> > will only detect surface cracks.  X-raying will detect internal
> > flaws (if they're big enough and the operator is good enough at
> > their diagnosis), but I'd guess that after 8,000 hours you'd 
> > already know about any internal flaws.  I guess what you need to
> > be worried about is fatigue, and I don't know of a method to
> > detect that until it progresses so far that cracks are propogated
> > to the surface.  Anyone else know of one?

Fatigue generally begins at the surface.

Regards,
Paul
Paul Hammarstedt
Crystal Lake, Illinois

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