Some Sheet Metal Laser Cutting Fabrication Functions You Don't Know

Anyone who knows about laser cutting knows that generally when laser cutting stainless steel, it is necessary to combine the use of some auxiliary gases. Why is this? Why is it necessary to combine the use of some auxiliary gases during laser cutting? Let's have a look.

Laser cutting will generate a lot of heat. If such high heat is concentrated together, the material at the cutting site will be burned, an oxidation reaction will occur, and the workpiece will be easily deformed. Therefore, we need to add some auxiliary gases, commonly used are oxygen, air, and nitrogen, especially the most suitable gas should be selected according to different materials.

When we process stainless steel, we should choose nitrogen. Nitrogen can prevent the oxidation reaction of the incision so that the processed incision will not have blackening. When choosing nitrogen, choose high purity. If you are processing carbon steel plates like spcc sheet metal, you must choose oxygen. Oxygen mainly plays a role in supporting combustion, which can speed up the laser-cutting process of the workpiece. Of course, the purity of oxygen should be as high as possible. In some processing that requires less precision, we can also choose oxygen, because the cost of oxygen is low, and it also has a great auxiliary effect.

In addition to the above functions, these auxiliary gases also have many common functions. These gases can blow away the slag generated during the laser cutting process and can protect the lens to prevent the slag from sticking to the lens and prolong the service life of the laser cutting lens. Air and nitrogen also have a cooling effect, which also cools the cutting head.

The auxiliary gases mentioned above not only because they have many beneficial functions for laser cutting, but also are very helpful to the human body. In order to make these auxiliary gases purer, also there must be some protection for the environment.