When cutting brushed or mirror stainless steel, film cutting is generally used. Because the wavelength of fiber laser is relatively short, only 1.06um, it is difficult to be absorbed by non-metallic materials. Transparent, high anti-alarm and other undesirable phenomena.
It has a great influence on the cutting quality of the sheet and the normal production. To melt the film on the surface, it needs to rely on the reflected heat of the laser on the steel plate to achieve it. If the power is small, the film cannot be cut through; if the power is large, it is easy to cause radiation damage to the surface of the sheet; The surface film is easy to be blown up. Obviously, the traditional CO2 laser cutting process cannot realize the cutting of the film stainless steel.
