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Archived [ARCHIVED THREAD] - magnetic particle?
Posted: 1/22/2006 1:17:24 PM EDT
what does this mean in regard to barrel testing/inspection on Colt ar's?

Link Posted: 1/22/2006 1:24:31 PM EDT
[#1]
in short a magnetic field is indused through the part.  when it hits micro cracks and such it creats a disturbance in the electro-magnetic field and makes the iron molecules line up in the powder that is sprinkled on the surface, which shows where/if there is a defect.

Link Posted: 1/22/2006 1:25:35 PM EDT
[#2]
It is a process to find (hopefully) cracks in the metal... techincally, it identifies "flux leakage" on the surface of the metal... this is a fancy way of saying that if you run a magnetic field through metal and sprinkle iron powder on it, the powder will stick and gather to an area that is cracked...

Link Posted: 1/22/2006 1:39:40 PM EDT
[#3]
en.wikipedia.org/wiki/Magnetic-particle_inspection
aka magnafluxing
Archived [ARCHIVED THREAD] - magnetic particle?
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