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Sunday, February 11th, 2007 06:00 pm
Dammit, the new machete blade cracked when I was redoing the heat treatment.



I need to be more careful about normalization. I'm thinking I'll get a section of 2 inch black iron pipe, and heat the blades through that. It will make getting an even heat for quenching much easier, and if I turn off the burner and leave it in there, should be a nice, slow, even cooling for normalizing. Won't have to worry about gusts of air or the blade drooping as I move it around.
Monday, February 12th, 2007 05:12 am (UTC)
Have you considered a bucket full of vermiculite? Very effective for that role. (And for annealing)
Monday, February 12th, 2007 05:58 am (UTC)
That's what I used to use for glass. It does a great job. But I think it might be the rapid cooling of the initial quench that's killing him -- I don't know, coz I've been distracted and haven't followed the posts well enough.
Monday, February 12th, 2007 07:18 am (UTC)
Definitely; looking back, it appears that matt is using W-1, which is basically 1075 high carbon steel. Since it's rated as a water-hardening alloy , he *aught* to be fine with water quenching. But maybe not.

If I were going to do oil quenching, I'd use olive oil. It smells nicer than motor oil. ;)
Monday, February 12th, 2007 05:34 am (UTC)
Slightly shorter machete? ;-)
Monday, February 12th, 2007 09:12 am (UTC)
Wait... if you're circumcising your machete, does that mean you need to cut the tip off with a penis?