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Heat Treating and Metallurgy Discussion of heat treatment and metallurgy in knife making. |
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#1
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Success!
I just used my KM-24 for the first time on CPM154 (2 small blades)
I plate quenched in foil and got 61RC on my hardness tester twice on each blade. I'm pretty happy with that. They are in the oven now (400F for 2 hours). I'm shooting for 58RC. ...letcha know. It was easier than I expected. I see a lot of stainless in my future! __________________ Andy Garrett https://www.facebook.com/GarrettKnives?ref=hl Charter Member - Kansas Custom Knifemaker's Association www.kansasknives.org "Drawing your knife from its sheath and using it in the presence of others should be an event complete with oos, ahhs, and questions." |
#2
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BOOYA!
Both blades were tested twice on the trusty Rams Rockford and both are 58RC on the money! Thanks to everyone who ever posted on heat treating CPM 154, 154 CM, or ATS 34, because I read them all. __________________ Andy Garrett https://www.facebook.com/GarrettKnives?ref=hl Charter Member - Kansas Custom Knifemaker's Association www.kansasknives.org "Drawing your knife from its sheath and using it in the presence of others should be an event complete with oos, ahhs, and questions." |
#3
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#4
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Well, the digital readout said 1800.
I bought it from a guy in Colorado who pointed out that the thermocouple was up near the door. He said that he had mesasured the heat in the center of the furnace at almost exactly 100*F higher. I put the knives in the center, where, according to him, it would have been 1900*F. Held for 1 hour Plate quench in foil tempered for 2 hours at 400 61RC as quenched 58RC as tempered I'll add a freeze in there at some point, but this is good for now. __________________ Andy Garrett https://www.facebook.com/GarrettKnives?ref=hl Charter Member - Kansas Custom Knifemaker's Association www.kansasknives.org "Drawing your knife from its sheath and using it in the presence of others should be an event complete with oos, ahhs, and questions." |
#5
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Nice one (or two?) Andy. Don't you just love the precision of being able to program in your temperatures ? I use an Evenheat KF24 and I can see a lot of stainless (never worked it before) happening in my not too distant future too.
__________________ " If it's not sharp, it's just a piece of metal " |
#6
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We made a believer !! CPM154 HT'd that way is one of the very best !
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