How to deal with deformation in stainless steel square tubes during welding? Usually, fire correction is used for the welding deformation of stainless steel square tubes, which is simply by baking with fire. However, if the deformation becomes too large, the effect is not very ideal.
Controlling the welding deformation of stainless steel square tubes can be effectively achieved by not only adopting a reasonable welding sequence and technique but also by performing a small reverse deformation treatment in advance, which yields good results!
Welded angle iron and stainless steel square tubes into the interior of the box with miter supports; in short, anything that can be secured is fine. After welding, the excess material is then cut away with an oxygen-acetylene torch.
② By altering the welding sequence and technique of stainless steel rectangular tubes, welding stress is eliminated.
Welding Power Supply
Energy-dense heat sources can be utilized, reducing relative heat input, such as the advantages of gas tungsten arc welding (GTAW) over manual metal arc welding, and the superiority of plasma TIG welding over conventional gas metal arc welding. Laser, plasma, and electron beam welding are all methods that achieve minimal deformation through the use of energy-concentrated heat sources.
2. Welding sequence for stainless steel square tubes
Employing appropriate welding sequences, such as symmetrical welding, can reduce welding distortion.
3. Welding reverse deformation of stainless steel square tube
Before welding, we predict the deformation that may occur after welding. We then add an opposite-direction allowance during pre-welding to ensure a certain degree of deformation, which helps to mitigate welding deformation.
4. The strong restraint during the welding of stainless steel square tubes.
5. The welding process of stainless steel square tubes employs impact hammering during welding or pre-set tensile stress on thin plates, both of which effectively control welding deformation.
6. After welding, stainless steel square tubes can be stress annealed to eliminate or reduce welding distortion (generally, welding distortion cannot be completely eliminated, but relatively speaking).
7. Stainless steel square tubes are directly related to welding materials; the higher the coefficient of linear expansion, the more likely it is to experience significant deformation during welding. Therefore, suitable welding materials can be chosen according to requirements to alter the structure of the焊接 joints, thereby changing the welding deformation.
