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Re: a pair of forged tomahawks
[Re: Jason Fry]
#7318835
10/18/18 06:57 PM
10/18/18 06:57 PM
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Joined: May 2013
Posts: 2,022 Flower Mound, TX
CharlieCTx
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Veteran Tracker
Joined: May 2013
Posts: 2,022
Flower Mound, TX
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...treated in a kiln at 1500 into 10 second oil, then tempered at 450. The only thing I know about knife building is what I read here and watch on "Forged with Fire".  On the show they make a big deal about heat treating and then "the quench", which you mention... what's the second tempering do? Is it another round of heat/quench or ...?
Charlie
Kel-Tec RFB + Griffin Sportsman Ultra Light 300 + Pulsar Apex XQ-50 M&P-10 + AAC Cyclone Remy 700 + Leupold VX3 3.5x10x50 CDS
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Re: a pair of forged tomahawks
[Re: Jason Fry]
#7318885
10/18/18 08:05 PM
10/18/18 08:05 PM
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Joined: Jan 2009
Posts: 1,432 Wolfforth, TX
Jason Fry
OP
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OP
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Joined: Jan 2009
Posts: 1,432
Wolfforth, TX
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The basic ideas... heating to 1500 or so puts the carbon atoms into solution relative to the iron atoms within the steel. Quickly cooling the steel in oil sets the atoms into place into a structure called "martensite", which is hard but brittle. Tempering reduces the brittleness. Two temper cycles are recommended to make sure that all the atoms are nice and relaxed  Tempering temperatures are usually in the 350-500 range. And for FIF, they show the quench because it's exciting. They leave out the tempering b/c it's boring watching a blade sit in an oven. For FIF, the blades are tempered overnight by Jay or Ben.
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Re: a pair of forged tomahawks
[Re: Jason Fry]
#7319222
10/19/18 01:05 AM
10/19/18 01:05 AM
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Joined: Aug 2013
Posts: 552
Drahthaar
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Posts: 552
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