Exiting device for laser hybrid welding

Abstract

The invention discloses an exiting device for laser hybrid welding. The exiting device for laser hybrid welding comprises a laser welding head, a semiconductor laser device and an optical fiber laser device, wherein the semiconductor laser device and the optical fiber laser device are respectively connected with the laser welding head; the semiconductor laser device transmits semiconductor laser; the optical fiber laser device transmits optical fiber laser; a light path of the laser welding head comprises a semiconductor light path, an optical fiber light path and a coaxial monitoring light path; a laser light beam of the semiconductor light path and a laser light beam of the optical fiber light path are superposed into a light beam for welding at a focus point of the laser welding head; a welding position is illuminated through an external light source; and light reflected by the welding position is displayed by a monitor after the welding position is imaged a coaxial monitoring light path. The technical problems that traditional welding pores are abundant, hot crack tendency is high, welding spatter is severe, welding joints are large and the like are solved. The exiting device for laser hybrid welding has the characteristics that energy utilization rate is increased, key holes are stable, the device is suitable for high-speed welding, solidification speed is reduced, the pores are also reduced, hot crack tendency is decreased, welding spatter is reduced, forming of welding joints is improved, so that a welding surface is smooth and the like.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of laser welding, in particular to a laser composite welding emitting device. [0003] 【Background technique】 [0004] 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 an...

AI Technical Summary

Problems solved by technology

[0006] 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

Images