How To Keep Metal From Warping When Welding. Using clamps strongbacks and other methods of holding parts in place can keep the metal from moving during the welding process and holding it in the proper position as the metal cools and stresses are acting on the material. The only way to reverse the warpage is to stretch it back out.
Sheet material warps easily and this can result in denting and waving. The rule is the more metal you place on a joint the more the weld warping. Avoid over welding your metals.
Design and welding should be addressed to minimize this sort of warping.
They are clamping bracing laying a proper bead proper tacking and cooling. Sheet material warps easily and this can result in denting and waving. Use intermittent welds instead of continuous welds. Minimize the amount of heat put into the weld.