Romanogee
Plastic
- Joined
- Jun 7, 2008
- Location
- Wheaton , Illinois USA
I have noticed, to an annoying degree, that when machining 4140 pre-hard that it will become remagnetized. I demagnetize it, machine it more and viola! Back to being a magnet. Does anybody have any knowledge of why this happens and is there a procedure to stop the remagnetizing once and for all?