Using cold working and mechanical correction, welding deformation is generally corrected by cold working, deforming 2-3 degrees in the opposite direction. The thermal deformation after welding is completed will pull the workpiece back to its normal state.

Welding: Welding, also known as "welding" or welding or welding, is the joining of two or more materials (of the same or different types) by heating, pressurizing, or both. The processing technology and connection method that produces atomic bonding between two workpieces. Welding has a wide range of applications and can be used on both metals and non-metals. During the welding process, the workpiece and the solder melt to form a molten area. After the molten pool cools and solidifies, a connection between the materials is formed. This process usually requires the application of pressure. There are many energy sources for welding, including gas flame, arc, laser, electron beam, friction and ultrasonic wave. Before the end of the 19th century, the only welding process was forge welding of metals, which had been used by blacksmiths for hundreds of years. The earliest modern welding technology appeared at the end of the 19th century, first arc welding and oxygen gas welding, and later resistance welding.