Something similar for cogs where the end result was case colours of 1/32. Is that a typical case colour depth?
Hello Raimey,
From what I remember reading in Dr. Gaddy's articles, case colour depth was in the microns.
JC
Raimey, I think you mean case depth, as opposed to case color depth. JC is right in that case color is very thin. Case, on the other hand, can be several thou thick, thicker if you are patient with the soak time. Case is the hard metal "skin," whereas the case color is a thin layer of "oxides and stuff" loosely bound to the surface ("stuff" is related to layer material that makes heat colors of steel). I also understand that the modern samari sword guys have a process that produces case of 0.015" - 0.030". This is offered as the explaination of how a sword can maintain an edge to cut through a phenomonial number of reed bundles in a single heroic blow.
Clausing lathes also have flame hardened beds.
