How does a sheet metal processing plant handle deformation problems during sheet metal processing?

Sheet metal processing has to say that the most commonly used should be electric welding! Welding metal is often combined with sheet metal processing at the same time, but there are some things to note. In the process of sheet metal welding, it is important to pay attention to prevent deformation of the workpiece, which is a key point. So how can we prevent sheet metal workpieces from deforming during the welding process?

1. In the case of ensuring the basic shape of the workpiece structure, it is best to reduce the number of welding of the workpiece.

2. Balance the welding points, try to avoid concentrating the welding points in a small area, otherwise it will affect the aesthetics, and secondly, it will easily cause the workpiece to deform.

3. Arrange the welding line in the center line as much as possible, it is better to arrange it symmetrically, so as to ensure the beauty.

4. It is best to take the structural design of the workpiece into consideration when welding, and it is convenient to use a tool holder for welding to ensure that the workpiece does not deform during the welding process.

5. Use smaller diameter electrode and smaller current.

6. Correct the welding sequence: For example, the segment welding should be performed from the middle to the two sides, and the welding should be performed by jumping from left to right to make the heat uniform.

7. Before welding, use a clamp to fix the weldment to avoid warping.

8. Avoid excessive cooling or preheating the base material.

9. Use welding material with low penetration.

10. Reduce the weld gap and reduce the number of grooves.

11. Pay attention to the welding size so as not to make the bead too large.

Sheet metal processing

12. Pay attention to fixing measures to prevent deformation, such as anti-deformation and rigid fixing.

13. Selection of welding consumables: Select the thickness of the welding electrode according to the thickness of the material to meet the requirements.

14. Current and voltage: We also often encounter in the actual operation process, the current and voltage are too large, the parts are broken; too small and not welded through.

15. Analysis of box deformation: We should analyze in advance which side will be deformed if the size shrinks vertically or horizontally after welding. In this case, the side that does not shrink in the direction can be welded first, so the deformation is small.

16. The weld gap is not easy to be too large. It is best not to use a gap in the thin plate, as it can be welded through.

17. Welding tooling: For sheet metal parts or cabinets with high installation dimensions, tooling is used to control deformation and shrinkage. The tooling mainly plays a supporting and fixing role, thereby reducing the deformation caused by welding.

18. Beating at the weld: Most of our welders do not have this habit, or do not know the principle at all. Of course, gentle tapping around the weld after welding can reduce stress and reduce deformation. It is important not to violently beat, but to slap in the surroundings, otherwise the weld seam will crack, and the gain is worth the loss.