Laser cutting machine is a type of automatic laser system with CNC controller. Which adopts CO2 or FIBER laser beam to cut metals (steel, copper, brass, aluminum, gold, silver, alloy, iron), acrylic, rubber, wood, plastic, leather, paper, foam, textile, fabric into 2D/3D shapes and profiles.
A laser is a highly concentrated beam of light of a single wavelength. At each wavelength of light, various materials absorb, reflect and transmit that light in varying amounts.
What is the laser beam
A laser beam is a very high intensity beam of light with only one wavelength, or one color. In the case of a typical CO2 laser, that wavelength is in the infrared part of the spectrum, so it is invisible to the human eye. As the beam travels from the laser resonator that generates the beam through the beam path of the laser cutter. It is only about 3/4 of an inch in diameter. It may be bounced in a different direction by some mirrors or "beam benders" before it is finally focused on the plate. The focused laser beam passes through a hole in a nozzle before hitting the plate. Also flowing through this nozzle hole is a compressed gas, such as oxygen or nitrogen.
The high power density results in rapid heating, melting and partial or complete vaporization of the material. When cutting mild steel, the laser beam is hot enough to initiate a typical "oxy-fuel" combustion process where the laser cutting gas will be pure oxygen, just like an oxy-fuel torch. When cutting stainless steel or aluminum, the laser beam simply melts the material and then blows the molten metal out of the cut with high-pressure nitrogen gas.





