More on Magnetic Parts

In the November 2011 issue of Products Finishing I briefly discussed problems with plating magnetic parts. One of my readers (also a student of mine some 25 years ago) sent me an email mentioning some other causes of parts becoming magnetic. One has to do with the machining and preparation of the parts.


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In the November 2011 issue of Products Finishing I briefly discussed problems with plating magnetic parts. One of my readers (also a student of mine some 25 years ago) sent me an email mentioning some other causes of parts becoming magnetic. One has to do with the machining and preparation of the parts. Milling of a steel part in opposite directions on each side can cause the part to become magnetic. Also, just the way they are handled prior to plating can cause the part to be magnetic, and if a magnet is used to retrieve a drop from the bottom of the plating tank that can also magnetize the part. If you routinely have problems with magnetic parts, keep in mind that the process steps mentioned here can cause you grief in the plating process. 

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