Our NOKA team is now introducing its latest generation of pipe and profile processing technology - fiber laser tube cutting systems. Technological innovation has brought us the smart KJG series. With superior reliability and high beam quality, our fiber laser cutting machines continue to be the industry leader.
During the cutting process of the laser cutting machine, the beam is focused by the lens of the cutting head into a small focus, which achieves a high power density at the focus, wherein the cutting head is fixed on the z-axis. At this point, the heat input by the beam far exceeds the amount of heat that is reflected, conducted, or diffused by the material, and the material is quickly heated to the melting and vaporization temperatures, while a high velocity gas stream is melted from the coaxial or non-coaxial side. The vaporized material is blown out to form a hole in which the material is cut. With the relative movement of the focus and the material, the holes are formed into a continuous slit having a narrow width to complete the cutting of the material.
At present, the outer optical path portion of the laser cutting machine mainly uses a flying optical path system. The beam emitted from the laser generator passes through the mirrors 1, 2, 3 to the focusing lens on the cutting head, and after focusing, a spot is formed on the surface of the material to be processed. The reflective lens 1 is fixed on the fuselage; the mirror 2 on the beam moves in the x direction along with the movement of the beam; and the mirror 3 on the z axis moves in the y direction along with the movement of the z axis. It is not difficult to see from the figure that during the cutting process, as the beam moves in the x direction, the z-axis portion moves in the y direction, and the length of the optical path changes at all times.
