Flatten Warped Sheet Metal

That is almost too thin to call sheet metal.

Flatten warped sheet metal. A polished flatter and a polished anvil block might do it for you. I don t think the bow is a heat warp i think it s a buckle caused by to much metal at the top caused when the bottom portion of the transom shrunk after the weld cooled. Still ended up warped. The metal has to do something if there is to much of it.

Fabricators straighten metal using many methods including heat straightening. The simple act of heating metal during the welding process causes stresses within the steel that often lead to distortion or bending. Then when you undo the clamps you will have a nice flat sheet of precious metal. Any ideas on how to make it straight flat again.

A simple small dent on a flat or gently curved panel is the easiest to remove and as long as the backside of the panel can be accessed the dent can be erased using a hammer and dolly hammering. You won t really need an anvil. In order to repair the warping of your pan you are going to need a piece of wood. Welding this together warped the flat round piece of stainless sheet metal.

Heat straightening does not symmetrically straighten the metal and is a gradual process. Purchase a 2 x 4 45 x 90 mm from your local hardware store and cut to it to fit the diameter of your pan. Understanding how the metal reacts to these stresses and applying a few simple tricks during the welding process can minimize distortion and bending making your welding process much faster and more efficient. First anneal the sheet then grip the sheet between two sheets of 1 8 thick flat stock steel sheet gripped tightly using steel g clamps then anneal the steel sheets until they are dull red and let it cool without quenching.

I tried clamping it to the welding table flat then hitting it with a torch hoping that the welding table. I ve made this a few times and they always end up warped. I tried clamping it flat to the welding table while welding but that didn t work. Just a very smooth block of half inch stock or even a flat hammer face will do.

You can use either a circular saw or regular handsaw to cut your 2 x 4 to length.