Everyone knows that the laser cutting machine is an artifact that cuts iron like mud, but the laser of the laser cutting machine is powerless to the surface of rust. Because the laser itself cannot become a light source, heat is generated only after being absorbed by the surface of the sheet metal workpiece. For unrusted materials and rusted materials, the laser absorption is very different, and the cutting effect is also different.

Taking the rusted sheet below 5mm as an example, the cutting condition of the overall uniform rusted sheet will be better than that of the uneven rusted sheet. Because the overall uniformly rusted plate absorbs the laser light evenly, it can perform good cutting. For material processing with uneven rust on the surface, the surface condition of the material should be uniform before cutting. Of course, if conditions permit, it is recommended to use a grinder for rust removal first.

For thicker rusted sheets, if the rusted sheet is cut directly by a laser cutting machine, it is easy to cause the phenomenon of impervious cutting, poor cutting quality, and even the phenomenon of slag backsplash, which may cause Damage the protective lens, or even the focusing lens, causing the ceramic body to burst. Therefore, if cutting thick rusted materials, be sure to remove the rust before cutting.