No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Roughness of Al and stainless steel finished by EP

Hello,

I would like to know about the roughness (in Angstrom) of stainless steel and aluminium surfaces finished by various electro-polishing methods. Besides, is it possible to electro-polish only the inside surface of a CVD chamber (Al or a SS316L), which is typically of >12" in diameter?

Thank you for a quick reply in advance. Please send me advertising materials of your services to the address below.

Byungchun Yang
Semiconductor process equipment - Cupertino, California, USA
2005

Final surface finish after electropolishing depends on the surface finish before electropolishing. In general, in terms of Ra, roughness will be reduced by about half, ie, a 32 Ra prior to electropolish will prduce about 16 Ra after electropolish. Similar surface roughness can be achieved by mechanical means, but on a micro level, under examination by SEM or sinilar methods, the electropolished surface will be much cleaner and smoother. Yes, it is possible to polish only the interior of a vessel.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
2005

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: