Select the appropriate welding sequence. If there have many parts for welded structures, you should be welded and corrected individually, and then weld the whole assemble part. In this way, the components are integrally integrated and then soldered with less distortion. Partial parts can be edged and welded, and the operation is also very convenient.

Select the appropriate welding sequence. In order to prevent welding deformation during sheet metal processing, the welding sequence should adopt strip welding method, back welding method , and symmetrical welding method.

Anti-deformation method makes the deformation after welding in the opposite direction to the deformation before welding, and the deformation of the workpiece before welding is offset.

Rigid fixation method can be used to reduce welding distortion.

Using reasonable welding methods and specifications. It has different energy densities and heat inputs for the welding method during sheet metal processing. Using high energy density welding methods when for thin plate welding. And CO2 gas-shielded welding and plasma arc welding are used instead of gas welding and manual arc welding which can reduce welding deformation. Gas welding is easy to deform than manual arc welding when welding aluminum or aluminum alloy structures.