CO2 laser cutting

CO2 laser cutting uses a 10.6-micron infrared beam from a gas laser, focused on the plate with an assist gas, to melt and blow out a narrow kerf, used in yards for profile cutting of thin to medium steel parts with a clean square edge that often needs no further preparation. Oxygen assist gives reactive cutting in mild steel, nitrogen gives an oxide-free edge in stainless. The beam delivers through mirrors, which limits flexibility next to fiber lasers. CO2 cutting suits up to roughly 20 to 25 mm steel; thicker hull plate stays with plasma or oxy-fuel. The cut edge accuracy supports tight panel-line fit-up.