Advantages and disadvantages of manual hammering to correct welding deformation

Advantages and disadvantages of manual hammering method for correcting welding deformation;

1, manual hammering is labor-intensive and technically difficult, but it does not require equipment, and is suitable for post-welding correction of thin plates.

2. Mechanical correction has high efficiency, high speed and good effect, but it needs equipment such as pressurizing mechanism and is suitable for middle schools.

3. The tensile deformation of weld metal can offset part of the compressive plastic deformation and reduce the welding residual stress.