Welding On A 2'' Thick Metal Plate

I am not a computer whiz or a welding genius, but I think I can offer some advice on the problem you had welding 2" plate.

What I remember from welding school theory would be something like this; First of all, the first thing that's done when welding is to adjust the amperage to the thickness of the metal being welded,lower amperage for thin plate and more for thicker material.

So I am assuming that while welding 2" plate the amperage was cranked right up. My advice to solve the warping problem would be to use the back-step welding procedure.

This procedure distributes the heat more evenly. Any welding book or instructor would be able to share this. Sorry I don't have a diagram.