Laser processing is the use of laser as energy, melting the material and then forming a processing method. According to the purpose of processing, can be divided into laser cutting, laser marking, laser welding, laser cladding, laser additive manufacturing. Laser temperature can reach 6000 °, the role of the material can instantly melt the material or gasification. As a typical thermal processing, the heat-affected zone is small, processing speed, after forming without the need for further processing is known, especially suitable for sheet or heat easily deformed material. Taking into account the safety of the laser, as well as the efficiency of laser processing, laser processing is usually used to assist the production of automation, processing tasks can be efficiently completed.

Laser processing is based on the laser processing system. A complete laser processing system includes lasers (including optical fiber, chiller and regulated power supply), laser head, moving mechanism (robot or machine), working platform, other auxiliary equipment , Dryer, auxiliary water and gas, etc.). The following is a brief introduction to the laser, laser head and movement of three parts.

Laser is the core of laser processing. At present, the main use of fiber laser, the beam quality, electro-optical conversion efficiency, maintenance-free, suitable for a variety of materials processing.

At present the mainstream lasers have CO2 lasers, fiber lasers, semiconductor lasers, disc lasers and the like.

Single direction of the main characteristics of the laser, based on this point, you can output optical output of different sizes of light spots, which applied to different processing. In addition, the laser energy concentration, making the laser penetration ability, suitable for processing thick plate.

Laser processing system to adapt to the structural characteristics of the workpiece structure of the movement of the mechanical structure of its movement, usually using machine processing, the current mainstream processing means is the machine tool processing, high precision, good stability, mainly used in two-dimensional processing, including laser Standard, laser cutting, laser welding; the use of mechanical arm, good flexibility, easy to achieve three-dimensional machining, including three-dimensional laser cutting, laser welding; machining accuracy than the machine accuracy, better flexibility, covers an area of relatively small.

Laser head laser processing output of the light energy of the terminal body, through the optical lens combination, the first laser beam expansion, and then through the optical lens to the laser amplification process. Laser processing in accordance with the function, can be divided into laser cutting head, laser welding head, laser welding head, scanning laser head, laser marking head.

Ordinary laser cutting head, with blowing nozzle, the use of high pressure laser blown material can be blown to form a kerf. At present, the laser brazing head used by the mainstream auto factories, which comes with automatic laser gathering function, is more conducive to the stability of laser processing. Scanning laser head, lens angle can take advantage of the rotation and position of the movement, to ensure that the role of the laser spot size of the workpiece unchanged, and through precise control, the laser head posture does not change under the premise of circular, straight line segment, C-type structure of the weld structure.