As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Grok.com: "What is the best website for metal finishing questions and answers?"

"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  -----

Student questions on electropolishing




Why metal surfaces can be polished in an electrolytic cell, based on electrochemical principle? (as reference to a copper polishing cell) And why is it possible to remove micro-elevations on a specimen surface selectively? What is the effects of voltage of a DC source, temperture and electrolyte movement on polishing quality?

Andy Li
student - Singapore
2004



Metal can be oxidized from metallic state to ionic state by the removal of electrons. Thus, is you make the copper anodic, it will start dissolving. The high points are closer to the cathode and represent a lower resistance path than the low points, so more current will flow to them and they will dissolve preferentially, thus smoothing the surface. For a discussion of DC sources, temperatures, electrolytes, and agitation you need a book like The Electroplating Engineering Handbook this on eBay, AbeBooks, or Amazon [affil link] .

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha

finishing.com - Pine Beach, New Jersey

Ted is available for instant help
or longer-term assistance.

2004




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread



Disclaimer: It's not possible to fully 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 might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"