A laser hybrid welding emitting device

Abstract

The invention discloses a laser composite welding emitting device, which includes a laser welding head, and a semiconductor laser emitting semiconductor laser and a fiber laser emitting fiber laser respectively connected to the laser welding head; the optical path of the laser welding head includes: a semiconductor optical path, an optical fiber optical path and The coaxial monitoring optical path, the laser beam of the semiconductor optical path and the laser beam of the optical fiber optical path overlap into one beam at the focus of the laser welding head for welding, and illuminate the welding position through an external light source, and the light reflected by the welding position is monitored by the coaxial The optical path imaging is displayed by the monitor. The invention solves the technical problems of traditional welding with more air holes, heavy thermal crack tendency, more welding spatter, larger weld seam, etc. It has the advantages of improving energy utilization rate, stable keyhole, suitable for high-speed welding, reducing solidification speed, and reducing air holes , Reduce the tendency of thermal cracks, reduce welding spatter, improve weld shape and smooth welding surface.

Description

【Technical field】 [0001] The invention relates to the technical field of laser welding, in particular to a laser composite welding emitting device. 【Background technique】 [0002] At present, laser has been widely used in industrial production, especially for metal welding, cutting, drilling, marking and surface treatment. Laser welding technology is becoming more and more important, mainly because laser welding has the characteristics of fast welding speed, easy to be guided by optical system, high precision, small deformation, and low thermal stress on the workpiece in production. Laser welding technology is gradually replacing traditional welding technology. Laser welding technology is mainly used for welding between the same metal or different metals. Since laser is a special kind of light, the welding process is closely related to the surface characteristics of metal materials. In the welding of common materials with high reflectivity such as copper and aluminum, the s...

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Problems solved by technology

[0003] In summary, the main purpose of the present invention is to make the laser beams emitted by semiconductor lasers and fiber lasers act on the same welding surface, thereby solving the problem of more air holes in traditional welding, heavier tendency of thermal cracks, more welding spatter, and thicker weld seams. Major technical problems, and provide a laser hybrid welding exit device

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