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pandamonium 09-13-2010 04:01 AM

Making My Own Knife Part Two
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Here is my attempt at heat treating and tempering. I used motor oil(used) for quenchant, and charcoal briquetes for fuel.
A metal oil pan for the furnace, and I picked up some 1/4" black iron pipe and fittings for the blower, oh I drilled hole along the length of the pipe.
I know the blade has uneven heat in it, I got impatient and didn't let the coals bank down long enough, and I had the air a little low.
When the blade came out of the quench, it was BLACK!! Well I sanded off all the black so I could put it in the oven to temper (I was at my brothers house, I read that if you quench in motor oil, it'll stink up the house when you put it in the oven). It came out of the oven a nice straw color, as recommended.
I will be finishing the knife next weekend, I ordered some spacer material and some mosaic pins (thanks Nitrox!), and I have decided to use some of the black locust I have for the scales.
As promised, when finished, I will take it out and give it a thorough test, I will post the results.

pandamonium 09-13-2010 04:04 AM

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Here is some more.

pandamonium 09-13-2010 04:07 AM

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And some more.

Gatekeeper 09-13-2010 04:24 AM

I've been wanting to try this with spring steel for a while. Love the blower setup, I may have to copy it:D
Plan on buying (or stealng )a toaster oven to do the tempering outside though. Don't have any family members that'll let me use their oven:rolleyes:
I'd love to see the locust handle scales. My dad made a few wading staffs from locust saplings and rub finished with linseed oil years ago and I don't know a tougher, harder wood once dried.
I beat one off a metal door frame repeatedly one time(don't ask:p) and barely dented the wood.
Hornbeam might be one I'd think about though, It has a really rough, grainy texture(almost like antler) but getting a section for scales without cracks would be a challenge

pandamonium 09-13-2010 05:15 AM

Hey Gate, this setup would have worked perfectly if I had been a little more patient. Once I sanded off the black crap from the blade, there was no smell whatsoever when I tempered it.
I will be posting pics next week of the finish sanding and handle intallation.

pandamonium 09-13-2010 05:19 AM

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I forgot this pic, after it came out of the oven, looks like straw colored to me.

doctherock 09-13-2010 05:19 AM

The knife came out looking like red hot magma. sweet.

pandamonium 09-13-2010 05:24 AM

Doc, that part that is yellow/white may have actually burned away the carbon in that part of the blade, destroying the steel there, from what I read, it should have been dull to cherry red the whole length. I guess I'll find out later when I try to chop down a tree with it!

doctherock 09-13-2010 05:25 AM

I temper with a big bertha torch tip and oxy-acetylene set-up.

M14sRock 09-13-2010 06:01 AM

The best way to learn is to try, P-Mo. That is very cool.

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