Handheld fiber welding laser 1000W

In terms of design and maintenance, this is a very simple machine creating excellent welds.

The welder enables both spot and continuous welding. The zone of influence of the laser energies is very small, so there is also less deformation of the material. In addition, it allows you to set the automatic movement of the beam output according to the programmed pattern to further reduce the local heating of the material.

Thanks to the high accuracy of the input energy regulation and the precisely defined point of the laser beam, it is possible to perform high-precision welding with a pre-guaranteed output. At the same time, only the most necessary amount of energy is introduced into the process at a predefined point, and thus there are no thermal deformations of the weldment. The great advantage of this technology is its speed - with a power of 2kW and penetration to a depth of 2mm, the welding speed is around 2 meters per minute. Thanks to non-contact and electrodeless technology, no impurities are introduced into the weld, and in addition, the resulting weld created by laser technology has a very narrow trace in the color of the metal and, unlike traditional technologies, does not require further grinding treatment.

In addition to carbon steels, it is also possible to weld low-alloy and austenitic stainless steels, aluminum or carbon alloys, titanium alloys as well as copper or nickel. In many cases, it is possible to weld said materials together, which is impossible by conventional welding processes. Laser technology can also be used to weld some types of plastics and composite materials.

The welding process takes place in two basic ways. The first variant of welding is deep welding technology, also referred to as keyhole welding. In this process, requiring a very high concentration of energy, the beam is focused on the surface of the welded material where it begins to melt and evaporate the metal. The steam (more precisely, the plasma) generated by melting the metal is highly ionized and can absorb the energy of the laser again, further increasing the efficiency of the whole process. The depth of such a weld can be ten times wider than its width.

For thinner materials, the principle of conduction welding is more often used, in which a slightly defocused beam is guided along the joint of welded materials. The energy is absorbed by the material which is melted and mixed at the weld. Heat is propagated only due to the thermal conductivity of the materials themselves. With this method, the width of the weld is always greater than its depth. An extremely clean and smooth weld is created.

Another advantage of laser welding compared to conventional MIG / MAG or TIG technologies is the possibility of very precise setting of welding parameters on the welder's control panel, thanks to which welding of even very thin materials from 0.3 mm is possible. Precise control of the laser source allows the use of a whole range of welding modes - continuous mode, pulse mode, mode of gradual increase of power called loop or their preset combinations.

As with other technologies, welding can take place with or without added material. Laser welders are often equipped with an automatic material feeder with a diameter of 0.6 - 1.2 mm. The feed speed to the weld site is freely adjustable and can therefore be regulated very precisely.

The laser head does not come into contact with the material during welding. In the case of hand-held welders, the miniature laser head is placed in a pistol grip and is connected to the body of the welder by a flexible cable guiding the optical fiber and possibly providing guidance of the additional material. This construction ensures very good handling of the entire tool. In front of the head there is a "nozzle", supplied in various shapes, which facilitate the execution of individual types of welds. Thanks to good handling, welding can be performed even in hard-to-reach places where it would not be possible to use traditional process technologies.

In order to be objective, it is necessary to mention here the disadvantages of the principles of laser welding. This technology is not yet suitable for welding very strong materials, which will still have to wait for welders with higher power. Another disadvantage is the need to ensure laser safety by creating a suitable welding workplace - but it is a one-time cost that is solved within the installation of the technology. As with other welding technologies, the principles expressed in the safety standard ČSN 60825 must be observed.

Another minor disadvantage may be the preparation of the parts themselves for the welding process. As the laser welding technology itself is very precise, it is also demanding on the precise fitting of the welded parts.

If you want to try processing with your material, you can do so with us, but we also allow you to rent a welder to test it in your operation.