Summary for stainless steel polishing method Discussion
Stainless steel polishing method is discussed in the context of mechanical seal parts that need a flat, mirror-finish face after lapping. David Magana of Monterrey, Mexico says his plant can check planicity after lapping, but still cannot achieve the mirror finish required on stainless steel and ceramic parts, and asks for the right system to use in-house. The reply says the question is surprising because, with the right abrasive in the lapping operation, the desired finish should be achievable without a secondary polishing step. The answerer recommends checking with the abrasive supplier or a good abrasives distributor to select the proper abrasive for the process. No alternate methods are proposed, and the main emphasis is on improving the lapping setup rather than adding another finishing stage.
2001
Thanks for this place for my question!
First.- We are a mechanical seal fabricator and manufacturer and like a part of our quality process we have to check the planicity of the surface in some parts of that seals, these step qe made it after the lapping process, after that we require the mirror finish in the faces of the parts specially in SS and ceramic parts, until now we can’t get that kind of finish in the parts.
Second.- We are looking the right system to work in our plant with that parts and we’ll appreciate your very kind answer .
Best Regards!
David Magana
– Monterrey Mex
You say you lap your parts and are not satisfied with these results? I am surprised at this statement. Given the right abrasive in the lapping operation, you should achieve the results you are looking for without going to a secondary operation. I suggest you check with your supplier or a good abrasives distributor.
AF Kenton
retired business owner – Hatboro, Pennsylvania
2001
You might consider electropolishing for your stainless steel parts, mirror finishes and very low Ra / RMS values can be achieved.
Phil Sterrett
– Cleveland, Ohio USA
2001
Q. We are using shaft grinder machine to get no 4 finish on sheet using silicon carbide wheels but we are not achieving no 4 finish as we get on readily available sheets.
Naresh Panchal
– India
December 14, 2011