Metal finishing Q&As since 1989
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Problems nickel plating high speed steel
December 4, 2012
Q. I am having trouble nickel plating water lines on M2 high speed steel.
David Deroseplater - St Petersburg, Florida, USA
A. Aren't we all, David ... aren't we all. Seriously: sorry, but I don't know what you mean by water lines. Please try to give us a paragraph or two about what you are doing and what "trouble" you are having. Thanks!
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
December 5, 2012
August 21, 2013
Q. Hello all, I have been making Diamond tools for 35 years by plating mostly Nickel Sulphamate and partly burying Superabrasives. On occasion I have plated M2 HSS but have now a need to plate M35 HSS. This contains percentages of the following elements by weight:
C=0.94 Cr=4.1 Mo=5.0 W=6.0 V=2.0 & Co=5.0
Also a tin coated version of the same job.
I have at my disposal hot alkaline cathodic or anodic degreasers, dry acid salt in solution, sulfuric acid 10 to 15 percent (again cathodic or anodic), and a Watts Nickel strike bath, not reversible or pulsed.
Can anyone give me advice please on the best utilisation of the above to obtain good adhesion of the nickel and superabrasives?
Regards
Paul
Director of engineering company - Rugby, Warwickshire UK
August 29, 2013
A. Paul, I'm in the same line of work as you. I assume after 35 years, you can get your parts to pass a water break test, so your pretreatments shouldn't be that much of a concern. I would be using a Wood's nickel strike and your problem should be remedied. Good luck.
Jim Schwartzmyer- North Tonawanda, New York, USA
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