Deleted
Deleted Member
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bluing
Jul 13, 2008 1:35:31 GMT
Post by Deleted on Jul 13, 2008 1:35:31 GMT
well ill keep this short as i have already asked about the subject. when i tried in the oven with Brenn's instructions i was only able to get my knife an even gold with is beautiful i must say but blue was what i was shooting for. is there something i could have done wrong? what temp and for how long should i leave my 1/4 inch thick knife in the oven? recently i bought a torch and tested it on this knife I'm working on and got this effect by just running the flame up and down the blade on both sides. but i want to get it darker like the streak near the tang. is there a reason why its darker there than anywhere else on the blade? thanks for the help! on a side note i finished a new knife that i had been working on. now i would love to say that i forged it but i didn't. took me about a day cut out and shape the blade with my trusty angle grinder and files. what ya think?
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bluing
Jul 13, 2008 10:54:49 GMT
Post by Dan Davis on Jul 13, 2008 10:54:49 GMT
To get the deep blue you are looking for you need to run the temperature of the oven up to about 600F, which unfortunately will completely hose your heat treat. Off to the gun shop and pick up a bottle of Perma-Blue.
The new blade looks nice. You can avoid that crack in the grain where you set the pin if you flood the hole with superglue, let it dry and redrill the hole. Do this a couple of times and the glue will soak into the grain, stabilizing the hole around the pin. As long as you don't pound the pin too hard when setting it you should be fine.
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bluing
Jul 13, 2008 20:53:18 GMT
Post by Matt993f.o.d on Jul 13, 2008 20:53:18 GMT
Well done DS. That is a nice looking blade.
Nevertheless, don't bother with the BLUE colour when hot bluing knives, as it will bugger your heat treatment. Hot bluing is basically tempering and leaving the oxide film on after you've finished. A blue temper colour is unsuitable for knives as it is too soft. At best it is only useful for chisels.
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Deleted
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bluing
Jul 13, 2008 21:37:00 GMT
Post by Deleted on Jul 13, 2008 21:37:00 GMT
stupid question but what if i were to mildly blue it with my torch or in the oven. then use the perma blue would that darken it even more or just screw it up?
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bluing
Jul 14, 2008 14:53:50 GMT
Post by Matt993f.o.d on Jul 14, 2008 14:53:50 GMT
Just use the perma blue on its own. Less risk and it will do fine.
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