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I Forge Iron

jacobd

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Posts posted by jacobd

  1. This next summer, I bought a brand new 150lb anvil, got a hand crank buffalo blower, and a 12" round pass forge firepot. I'm about to build my new forge. Got some of the stuff together to make a small propane forge for knife making also. Going to make tools first mostly, all the tongs I think I'll need, hot cutting chisels, hardy tools, and that stuff. Hopefully I'll have a decent collection by the time I get to Stephenville.

  2. I know nothing about this at all, so I'm not even going to try and give any advice other than bringing it up. Wouldn't electroplating work? I remember the mythbusters doing it with the clay pot Baghdad batteries. So it seems small scale manageable. Like I said, I know next to nothing about doing it, I'm more curious to hear why it would or wouldn't be a good idea.

  3. Well kohlswa is know be a good anvil, the other I'm not familiar with. With such an investment why risk it. Especially if the kohlswa is as big and around the same price. Do a lot of research. I did before it dished out the money for my TFS, and it's great, good rebound and hard face, I love it! Just read as much as you can to make sure it's not a decision you will regret.

    While I don't own a kohlswa I've only heard good things.

  4. I've used it once before, kind of a Tim Lively forge idea. It works great. I used an old chain link fence post. It was rusted, so I knew most of the zinc coating was gone, so I just wire brushed it with the angle grinder and capped the end, drilled holes about an inch or so apart, and used bricks to make the "trench". Connected it to my roll film dryer and off she went. It was to re-harden the big section of a concrete buster bar. Got about 18" of 2" square a low orange.

  5. Iron has small (I guess they are particles) called domains, slightly larger than the atoms. In the presence of a magnet they line up in rows and are drawn to the magnet. When they domains reach a certain energy level (from heat in this case) they are vibrating and moving so much that they won't line up. This also explains why metals becomes malleable and expands slightly. The atoms are vibrating and jumping around so much in their respectivr positions that they actually move enough in distance from one another to weaken the electrostatic bonds (because they distance themselves from one another due to the movement) and their movement away from one another due to increasing vibration also explains their expansion. My guess is (if I remember correctly) the atoms near the magnetic point are shifting far enough away from one another to allow carbon to travel freely through the iron atoms MATRIX. This allows when cooled rapidly for the carbon atoms to become trapped in an iron matrix (called carbides) and form martensite (that's the really hard brittle one right?). That if I remember correctly explains the significance of the non magnetic point. Correct if wrong, I learned this from my chemistry/physics professor, via word of mouth, not extensive reading. I very well could have missed something important. I think that should kinda help.

     

    typo corrected

  6. I'm assuming forge work isn't an exception? Anyone have a certain fog resistant eye protection they prefer? I got some, but here in Texas I sweat like an Eskimo in a heat wave. The fogging drives me crazy.

    I've even considered $80 paintball goggles that have good reviews.

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