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Agreed that this still needs work, but processes like sandblasting and shot peening are clearly not coatings. --Mud4t 09:48, 26 September 2007 (UTC)
Diffusion is NOT coating. Yannjp 11:02, 10 November 2007 (UTC)
I completely agree that coating is a part of surface finishing but not all surface finishing are coatings. at the beginning of the article the difference is clearly given between adding material or modifing mecanically or by other means the surface properties of a bulk material. so even if surface finishing is more broad subject, I think that "coating" is a more common word that deserved to have its own article Sacre djo (talk) 11:49, 21 February 2008 (UTC)
A thin film is defined as "fractions of a nanometre to several micrometres in thickness". Many processes such as electroplating are usually used to generate thin films. They are often used to generate much thicker coatings such as the hard chrome plate on a bulldozer hydraulic cylinder rod. Galvanizing seems to primarily refer to hot-dipped galvanizing of steel or iron (in the US at least). Hot-dipped galvanizing coating thickness is in the tens to hundreds of microns (millimeters in heavy marine parts). Galvanizing probably should not be categorized as a thin film. Zinc plated refers to a thinner film of electrodeposited zinc. —Preceding unsigned comment added by Jim1138 (talk • contribs) 18:47, 25 July 2009 (UTC)
Knurling does not seem like a finishing process to me. Wilhkar (talk) 00:18, 18 February 2010 (UTC)Wilhkar
Depends on the application. If the knurling is used to increase the gripping ability or aesthetics of a surface then I would call it a surface finish. Wizard191 (talk) 22:32, 19 February 2010 (UTC)
Surface finishing or metal surface finishing?
I've taken out some advice language from the last section, but in doing that noticed that this seems to deal exclusively with metal finishes. Since the article is called "Surface finishing" maybe something should be changed here. Either rename the article or the headline for this section. I'm pretty certain the described methods aren't employed in surface finishes for other surfaces (e.g. glass, wood, acrylic etc.) 126.96.36.199 (talk) 20:06, 21 January 2011 (UTC)
I changed the section title to "metal surface finishes". Wizard191 (talk) 19:54, 22 January 2011 (UTC)