We see that the perforated mesh will deform more or less after production is completed, and it is not as flat as the original plate. Why is this? The following is an explanation from Anping County Senchi Perforated Mesh Factory on why the perforated mesh deforms for your reference.

The perforated mesh is manufactured by a CNC punching machine according to a specific mold. The mold on the punching machine is an alloy punching needle installed. In fact, it is the punching needle that punches the original plate of the perforated mesh. The moment the punching needle rubs against the original plate, huge heat will be generated, and the other parts of the original plate are particularly cool, so the place where heat is generated will cool down quickly, which is equivalent to the annealing of the perforated mesh. After annealing, the hardness of the perforated mesh will increase and stress will be generated, so the perforated mesh will deform after production is completed.
The deformation of the perforated mesh is closely related to factors such as the material of the plate, the size of the aperture, and the spacing between the holes. For the same specifications of perforated mesh, the stainless steel perforated mesh is more severely deformed than the iron plate perforated mesh, and the iron plate perforated mesh is more severely deformed than the aluminum plate perforated mesh;
The smaller the aperture, the more severe the deformation, and the smaller the hole spacing, the more severe the deformation. Another factor affecting the deformation of the perforated mesh is the margin of the perforated mesh. The larger the margin, the more severe the deformation.
What to do if the perforated mesh is deformed after production is completed
The perforated mesh will deform more or less after production is completed. This is an inevitable phenomenon due to the production characteristics of the perforated mesh. So how to deal with the deformation of the perforated mesh?
After the deformation of the perforated mesh is completed, it is usually leveled on the leveling machine. For the perforated mesh with more serious deformation, it can be leveled several times on the leveling machine.
Sharp punching needles can reduce the deformation of the perforated mesh. During the production process of the perforated mesh, you should always pay attention to the wear of the punching needles. If you find that the wear is serious, you should replace it immediately.