A laser cutting machine focuses a laser beam emitted from a laser source into a high-power-density beam through an optical path system. This beam irradiates the workpiece surface, causing it to reach its melting or boiling point. Simultaneously, high-pressure gas coaxial with the beam blows away the molten or vaporized metal.
As the relative position of the beam and the workpiece moves, a kerf is formed in the material, achieving the purpose of cutting.
Laser cutting uses an invisible laser beam instead of a traditional mechanical blade, offering advantages such as high precision, fast cutting speed, no limitation on cutting patterns, automatic layout to save material, smooth cuts, and low processing costs. It is gradually improving upon or replacing traditional metal cutting equipment. The mechanical parts of the laser cutter head do not contact the workpiece, so they will not scratch the workpiece surface during operation; laser cutting speed is fast, the cut is smooth and flat, and generally no further processing is required; the heat-affected zone is small, the deformation of the sheet metal is small, and the kerf is narrow (0.1mm~0.3mm); there is no mechanical stress on the cut and no shearing burrs; the processing accuracy is high, the repeatability is good, and it does not damage the material surface; CNC programming can process any planar shape, and it can cut large sheets of sheet metal without the need for molds, which is economical and time-saving.