With the development of laser processing technology, high power semiconductor lasers have gradually emerged, and are regarded as a new generation of laser light sources together with fiber lasers, ultrafast lasers, disk lasers, etc., making many important applications possible. Listen to High power semiconductor lasers exporter Dershine to explain the application of high power semiconductor lasers welding for you.

Compared with other lasers, high power semiconductor lasers have incomparable advantages, such as small occupied space, simple structure, stable system, and long service life; uniform energy distribution, high photoelectric conversion efficiency, and high light absorption rate of metal materials It realizes the characteristics of automation and is widely used in metal material processing.

High power semiconductor lasers have been widely used in metal material welding due to their excellent performance. Because of its large light spot, uniform beam quality distribution, and high absorption rate of metal materials, the molten pool is stable, with no spatter, and the weld surface is smooth and beautiful during the welding process. welding.

1. Laser spot welding, seam welding

The semiconductor laser spot welding process is thermal conduction welding, which is achieved by adjusting the laser power and radiation time to melt the metal material. Due to the uniform distribution of the spot energy, the laser energy can be slowly decreased and the gradient can be realized, thereby solving the problem of porous porosity caused by the collapse of the pseudo-keyhole at the end of the spot welding seam.

2. Laser continuous welding

The semiconductor laser can form a keyhole effect in the continuous welding process and has a strong penetrating ability. In continuous thermal conduction welding, the welding process is stable, the surface is smooth, the shape is beautiful, and the welding seam section is semi-circular, which can realize the welding of metal sheet structural parts (butt welding, lap welding, fillet welding, etc.), and the welding seam width can reach 3.5mm; during continuous deep penetration welding, the welding process is stable, spatter-free, and the weld section is Y-shaped. The strength after welding can meet the requirements of the workpiece.

3. Double beam laser welding

The semiconductor laser is combined with a single-mode continuous fiber laser, and through different laser energy ratios, different weld cross-sections (semi-circular, V-shaped, U-shaped, Y-shaped) can be realized, and it is widely used in the capping welding of new energy power battery shells. And the package welding of the filter.

The above is the application of high power semiconductor lasers welding. If you are interested, please contact high power semiconductor lasers exporter Dershine to discuss.