The dimensions on almost all drawings for machined components are assumed to be after plating. However, plating thicknesses generally only matter when machining parts with tight tolerances (<0.001″). Most plating processes only add a couple tenths or less (<0.0002″) of thickness per side. This includes chromate conversion, Type II anodizing, and electroless nickel plating. Measuring…
Read moreAnodizing Thicknesses
This is a bit of an oversimplification, but when a part gets anodized, the anodize layer forms halfway into and halfway above the original surface. So if a drawing calls for 0.002″ of anodizing, then the part will “grow” in size by 0.001″ per side of the part. For example, if a raw part is…
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