Magnaflux is the trade name for Magnetic Particle Testing, where a magnetic
leakage field is used to detect surface and subsurface cracks. It is done
by inducing a magnetic field in a ferro-magnetic material, and then dusting
the surface with iron particles. These particles can be either dry or
suspended in fluid. A surface defect will allow the magnetic field to
"leak" out of the part, distort the field, and lay the iron particles down
on the defect.
2-BT7's & a XKEv12
----- Original Message -----
From: "Alan F Cross" <email@example.com>
Sent: Monday, October 03, 2005 3:47 PM
Subject: Can someone explain 'magnaflux'?
> I've been to the Magnaflux web site, which has told me that that Magnaflux
> is an analysis method for defects in metals, not a defect 'fixer' (which
> is what I once thought it was).
> But what do you guys do (or have done) when you 'magnaflux' things like
> fan blades? Is this a DIY (dye) test, or do you send the components away
> to be magnetised, etc?
> Supplementary question ... if Magnaflux finds a problem with fan blades,
> what do you do about it? Dump them, strengthen them, or something else?
> Hoping to be wiser on this shortly! Now I've got my fan blades out, and
> cleaned of paint, I'd like to 'do the right thing' before I repaint them.
> Alan F Cross (BJ8 "Ginny")