Re: Dale's k 27 By Kozo

Home Model Engine Machinist Forum

Help Support Home Model Engine Machinist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
What is the best type of hammer to use to form copper sheets ?

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!
 
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
 
Back
Top