- Mon Dec 19, 2011 1:16 pm
#24082
this knife is a contemporary birding knife I'm almost completely done with (just actually completed it last week). I ran out of polyurethane, so I used Linseed oil for the scales so far, until I get a nice gloss poly. This particular knife I've adorned with filework (if my crappy camera caught it), and is made from one solid piece of precision ground .125'' O1. The blank was annealed three times, normalized, and then quenched. Blade is differential tempered; the spine & body of the blade are Rc52, and the edge (up to 1/8'') was left at Rc62. Scales are slabs of Honduran mahogany, fastened with brass pins (peened & then ground flush).
I repeatedly anneal my blade stock (before shaping) to not only soften it to the low Rc30's (MUCH easier to shape), but so that it will more readily take a nicer finish, and when finally hardened, the grain structure of the steel is so reduced (as annealed, it is Pearlite), so that even when the grain grows within the steel (formation of carbides), they will remain extremely fine, and allow for a scalpel-like edge (in fact, the low carbon stainless' used in scalpels were designed on the very same principle), and HIGH resistance to chipping and even catastrophic breakage.
this knife is a contemporary birding knife I'm almost completely done with (just actually completed it last week). I ran out of polyurethane, so I used Linseed oil for the scales so far, until I get a nice gloss poly. This particular knife I've adorned with filework (if my crappy camera caught it), and is made from one solid piece of precision ground .125'' O1. The blank was annealed three times, normalized, and then quenched. Blade is differential tempered; the spine & body of the blade are Rc52, and the edge (up to 1/8'') was left at Rc62. Scales are slabs of Honduran mahogany, fastened with brass pins (peened & then ground flush).
I repeatedly anneal my blade stock (before shaping) to not only soften it to the low Rc30's (MUCH easier to shape), but so that it will more readily take a nicer finish, and when finally hardened, the grain structure of the steel is so reduced (as annealed, it is Pearlite), so that even when the grain grows within the steel (formation of carbides), they will remain extremely fine, and allow for a scalpel-like edge (in fact, the low carbon stainless' used in scalpels were designed on the very same principle), and HIGH resistance to chipping and even catastrophic breakage.
Sometimes you just have to Cowboy Up.