Metal finishing Q&As since 1989
-----
Cobalt-Chromium Electropolishing
Dear Sir,
I want to electropolish cobalt-chromium alloy. I am already dealing with stainless steel electropolishing. I want to know which electrolyte should be preferred to electropolish cobalt-chromium. For better and smooth finishing, how should the parts be precleaned?
Vijay Nathmetal finishing - Alahabad, UP, India
2003
2003
Back in the archives we see this response in Spanish from Tom Pullizzi's mother, Vijay:
No quiero nada por nada
No te lo quiero tomar
Qué por entendido tengo
Qué él que toma-tiene que dar.
Your inquiry will surely get a better response if you are able to start by briefly describing your experience with stainless steel electropolishing, including the electrolyte you use.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003
Dear Mr. Mooney,
An english translation Please? expectantly,
Khozem Vahaanwala
Saify Ind
Bengaluru, Karnataka, India
2003
Sorry, I know only English, Mr. Vahanwala
But the point of the poem is that people usually get poor results here if they ask others to share their knowledge with them, without sharing their own.
I think that if Mr. Nath phrases his question in terms of what he already knows, he will be more likely to get good help. For example:
"I electropolish stainless steel in a solution of ______ at _____ degrees and _____ASF. I pretreatment it by going through a ____oz/gal caustic electrocleaning tank, and I get good results. Now I would like to electropolish cobalt-chromium. Is my solution a proper one for cobalt-chromium? Would I use about the same current density? Is electrocleaning a sufficient pretreatment, or do I have to activate the material in some way?"
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q, A, or Comment on THIS thread -or- Start a NEW Thread