Laser cutting machines use the high energy density of the laser beam to locally heat the material. At the same time, the melted or evaporated material is removed through an auxiliary gas nozzle, thus achieving the cutting of the material.
This cutting method has the advantages of high precision, high speed, and applicability to various materials, and is widely used in the fields of industrial production and manufacturing.
Laser generator: Laser cutting machine uses a laser generator to produce high-energy and high-density laser beams.
Laser beam focusing: The laser beam is focused through a lens system, maximizing its energy density at the focal point. The focused laser beam has sufficient energy to melt or vaporize materials.
Material melting or evaporation: When the laser beam irradiates the surface of the workpiece, the energy is absorbed, causing local heating of the material. When the energy density is high enough, the material begins to melt or evaporate.
Gas Nozzle: At the same time, the laser cutting machine will spray auxiliary gas (such as nitrogen or oxygen) through the gas nozzle onto the cutting area of the workpiece. The function of this auxiliary gas is twofold:
On the one hand, it can blow away the melted or evaporated material to keep the cutting area clean. On the other hand, it can also interact with the laser to increase the cutting speed and quality.
Cutting process control: The metal laser cutting machine controls the movement path and power of the laser beam through a computer control system according to the required cutting shape and parameters.
This enables precise control of the cutting process, achieving cutting of complex shapes and high precision.