Automatic welding special equipment is a special welding automation equipment designed for specific workpiece and welding joint of certain shape. It can realize the rotation or movement of motor, pneumatic actuator and hydraulic actuator through electric control, pneumatic control and hydraulic control technology, it can still realize the relative motion of workpiece welding seam and welding gun, so as to finish the welding work of welding joint automatically.
The basic forms of welding deformation include contraction deformation, angular deformation, bending deformation, wave deformation and distortion. In the process of welding, uneven heating and cooling of welding parts is the fundamental cause of welding stress and deformation. The technological measures to reduce welding stress and deformation are as this article says.