High-quality laser cutting of stainless steel in inert gas atmosphere by ytterbium fibre and CO₂lasers

Mechanical characteristics of high-quality laser cutting of steel by fiber and CO2 lasers

“…It should be noted that the ultimate cutting velocity of the fiber laser is 1.5-2.0 times greater than the ultimate cutting velocity of the CO 2 laser with the same power. It was shown [14] that the processes of beam reflection from the upper surface of the stainless steel sheet in the case of cutting with the use of an inert process gas are more essential at the wavelength λ = 10.6 μm than at λ = 1.07 μm. Apparently, this factor restricts the maximum cutting velocity of the CO 2 laser.…”