Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Basic information about electropolishing




Q. I have an application in which an electropolish is desired on some very small parts (about the size of large watch screws) with some somewhat intricate features - a nailhead pin with a full radius on one end and the nailhead having a radius on the outer edge. The machined finish is approx. 32. I would like to electropolish to 16. Can anyone give recommendations on what to use as an electropolish. Material is Ni-Fe-Co alloy.

Jim Petri
hermetics - Melbourne, Florida, USA
2004


A. Hello Jim. My first suggestion on what to use would be "an experienced electropolishing shop" :-)

Electropolishing of larger parts is difficult enough, but to start the learning process with such intricate parts is an invitation to expensive failure because if anything (temperature, agitation, current density, water content) is less than perfect you will etch the parts rather than electropolish them.

But the Electroplating Engineering Handbook [on AbeBooks or eBay or Amazon] includes a very good chapter on electropolishing, and lists a number of electrolytes that may be suitable.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2004



Q. I want to do polishing on Nanocrystalline pure Nickel and Ni-18.5% Fe. What Electrolyte should I use. Please also suggest voltage, speed and time for Electropolishing. It will be of great Help. Thank You.

Jay Desai
- Kharagpur, West Bengal, India
August 13, 2013




(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:

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


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"