Re: Dale's k 27 By Kozo

Discussion in 'Boilers' started by dalem9, Mar 6, 2016.

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  1. Mar 6, 2016 #1

    dalem9

    dalem9

    dalem9

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    What is the best type of hammer to use to form copper sheets ?
     
  2. Mar 6, 2016 #2

    canadianhorsepower

    canadianhorsepower

    canadianhorsepower

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    the hammer any kind :D

    the personality :eek:

    a very patient guy Rof}Rof}

    take your time , twenty small shot and it will work

    Good Luck
     
  3. Apr 11, 2016 #3

    cnc-for-model-engineers

    cnc-for-model-engineers

    cnc-for-model-engineers

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    Hi Dale - I've built 4 copper boilers. It's lots of fun.

    1) Make sure you know what annealed copper feels like. I did not for my first boiler, so I re-made it.

    2) a soft faced hammer is what you want. When copper is annealed, you want to just suggest to it where it should go; a hammer with a hard face will mark copper really easily.

    You'll figure it out. Once I figured out #1 above, everything else was easy.

    Waiting for the snow to depart - more here in Ottawa this AM - so we can get out and get the tracks running!
     
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  4. Apr 11, 2016 #4

    dnalot

    dnalot

    dnalot

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    Hi

    I like to wrap the face of the hammer with soft leather. It will need to be replaced once in awhile but it does a very good job of protecting the copper from hammer damage. You will feel the copper harden as you work it so re-soften the metal often to avoid cracks. A quench in water with a little sulfuric acid will clean all the black off the copper. If the copper is not clean you will work the dirt into the metal.

    Mark T
     
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