2022-03-23
The groove processing mostly adopts flame, plasma and other processing methods. The common groove forms are V-shaped groove, U-shaped groove, X-shaped groove and Y-shaped groove. These processing methods will produce deep cuts when cutting grooves, and if they are not eliminated before welding, it is easy to cause the grooves to not be fused. Generally, such dents must be treated if they exceed 3mm. In important positions, they can only be eliminated by grinding, and repair welding is not allowed. Follow-up processing is very troublesome when there are defects. At the same time, flame and plasma processing are high-heat processing, and the metal sheet is prone to thermal deformation. After the groove is processed, it is necessary to perform an inverse deformation process, which is another major difficulty.