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The Newbies Arena Are you new to knife making? Here is all the help you will need.

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  #1  
Old 03-14-2013, 01:24 PM
ramitupurs84 ramitupurs84 is offline
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One brick forge question

The supplier doesn't have 2600F rated bricks. They just have 2200F. Objective is to harden 3/16th 1084. Would this work? It will be from the stock removal method for shape.
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Old 03-14-2013, 01:34 PM
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Ray Rogers Ray Rogers is offline
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Should work fine if you can cut the hole in the brick. You could probably do as well with a small can (coffee, vegetable) with a Kaowool or Inswool liner. Might be easier than trying to shape a brick ...


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Old 03-14-2013, 02:55 PM
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BarryC BarryC is offline
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If they are the soft bricks you can hollow then out with a spade bit and a spoon. Or a better option would be to get a box of them and stack them in any configuration you need.


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Old 03-14-2013, 04:13 PM
Doug Lester Doug Lester is offline
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The last one that I made was actually a two brick forge and I milled out the two grooves that went together to make the fire chamber with a half round rasp. Just a hint-do this outside or you will be days getting up all the brick dust.

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Old 03-14-2013, 08:22 PM
ramitupurs84 ramitupurs84 is offline
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Well appreciate the help so quick. I pick them up Saturday.
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Old 03-14-2013, 09:06 PM
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NJStricker NJStricker is offline
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Here's another vote for the coffee can and kaowool. When I started, I built a 1 brick forge. It lasted me maybe half a dozen heats before the cracks were so bad it wasn't much good any more. Yes, I know Wayne Goddard says you can wire it together. My coffee can type forge has been going strong for almost 3 years, and several dozen heats so far. I got the ceramic wool liner off of Ebay for about $9 before shipping (it was sold as a 24 inch piece of annealing blanket).

Besides being more durable, the chamber is bigger than with a 1 brick forge. With my 1 brick forge I couldn't position the torch in any way where there weren't hot spots where the flame wasn't hitting right on the blade. With the coffee can style forge I get a nice swirl and more even heating. I worry less about overheating parts of the blade than when I used the single brick.

If you do go with the 1 brick forge, make sure to heat it up slowly--give it about 15-20 minutes to get up to temp. If you try to heat it too fast it will crack. If you are doing this outside, I would avoid using it in cold air (also contributes to cracking).
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Old 03-14-2013, 11:10 PM
Doug Lester Doug Lester is offline
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If you coat the inside of a insulating brick forge with a mortar or refractory it helps them hold up. I had a larger forge made up of 8 bricks and I used it quite a while until I replaced it with my mailbox forge. That was built pretty much like a tin can forge only with a mailbox.

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