"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."
-----
AISI 316 steel polishing problem
We do electropolishing. We use different material ( AISI
420,301,304,316) if I use 316,and Bath is dirty , begin surface problem surface is different area. I don't understand problem.
Erhan Aydoðan
afs knife and mold - Istanbul, Turkey
2003
You haven't described what you mean by "Bath is dirty" However, even with adequate precleaning, cutting oil can be trapped beneath the surface during machining and then released during electropolishing. Any oil floating on the surface can stick to parts and prevent polishing in those areas.
My advice: 1) Use sharper tooling, 2) electroclean or degrease parts before electropolishing, 3) skim oil off EP bath, and 4) add an acid-compatible surfactant (detergent) to the EP solution.
Ken Vlach [deceased]
- Goleta, California
Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2003
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: