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I Forge Iron

where did my steel go?


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im new at forgeing metal i have so far made one knife that sucks but thats okay its my first one.
i started with a piece of leaf spring i heated it and cut out the shape with a chisel and hammer took a few hours .

but my question is when i stated the thing was about a quarter inch thick
and after its now almost one eight inch thick did i heat it up to much
or is this something that will happen no matter what

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The slate colored scale that comes off it every time you pull it from the fire is another layer of steel lost to oxidization.

You can cut your blank with a hacksaw a lot more quickly and easily than chiseling it out like you are.

If you'll click on "User CP" at the top of the page and edit your profile to show your location you'll probably discover there are folk close enough to you to help directly.


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Ninja Style: if your steal starts sparking you are getting it way too hot and will lose a lot of steal that way. As Frosty said though each time you remove it from the fire you are going to lose some to scale. It will help if you keep the piece in the more reducing (less oxygenated) portion of the fire but it will take longer to heat up. The closer to the air source the more scale you will form as a general rule.

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  • 5 months later...

if you are going to forge the blade then you don't need to chisel the shape out, cutting a crude point is more than sufficient ;)

as others say, watch the temperature and the amount of air and the scaling will be reduced. get the metal to the right temperature and hit it hard and you should get more work done with less wastage.

as a side note on hot chiselling, I was teaching a couple of guys last week and amongst other things we made a trivet. Nice simple thing (as simple as I could think of!),which involved splitting a 2x1/4" bar of mild for 15" along the centre. OK, it was mild and not spring steel, but I was able to hot cut it much faster than the others did with angle grinders! it surprised me anyway.

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