Flattening Warped Sheet Metal

Step 1 check the warranty. Trying to achieve flatness by using a flat spank or flattening die may be somewhat successful with heavy thick soft metals but it usually will prove useless on a thin high strength part unless the press has enough tonnage to coin the metal induce outward plastic flow and reduce the metal s thickness. Then when you undo the clamps you will have a nice flat sheet of precious metal.

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If your pans came with a warranty double check the conditions.

Flattening warped sheet metal.

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. Any ideas on how to make it straight flat again. 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. If that isn t enough force then you could place the pipe in one location smack it with a rubber mallet in a few spots then roll the pipe 1 4 repeat.

You yes you can flatten warped pans. Purchase a 2 x 4 45 x 90 mm from your local hardware. I tried clamping it to the welding table flat then hitting it with a torch hoping that the welding table. The technique is to heat them up put a 2x4 long enough to go from edge to edge of the pan on to the crowned side and beat the heck out of it all over it s entire length while revolving it so the entire pan surface gets its share of whacking.

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. I tried clamping it flat to the welding table while welding but that didn t work. Still ended up warped.

You may be able to receive a replacement and save yourself the trouble of flattening 1 x research sourcestep 2 cut a piece of wood to match the diameter of your pan. For example you could set the metal on a piece of rubber leather or dense foam lay a pipe on top and roll the pipe while pressing down with your body weight. Many pans especially higher end cookware will come with a warranty that may cover warping. I ve made this a few times and they always end up warped.