-- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

topic 11919

AgNi plating over Cu base metal


Dear Sir,

Our company is using Ag/Ni (99%/0.7%) plating for our commutator which is made of Cu material. We used Aluminium oxide (Al2O3) to polish the commutator after plating. We realized that some commutators (with plating) after polishing, the AgNi plating started to chip off, leaving pores and cavities.

Is there any ways we can avoid this problems from arising? What can we do to ensure a smooth surface after polishing? Y

our advice is greatly appreciated.


Sam Zaw
- Singapore


What type of nickel are you using? What is your prep cycle? Electroless nickel will chip at part edges when plated thick because it's a brittle material.

Michael Brewington
Fin-Tec, Inc. - Salisbury, Maryland, USA

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2017     -    Privacy Policy
How Google uses data when you visit this site.