Laser welding machine is a laser equipment for laser material processing. It is a heat treatment technology using laser beam as heat source. It can be used for wear, scratch and needling of dies and metal workpieces.
Deposition, sealing and repair of holes, cracks, defects deformation, hardness reduction, sand holes and other defects. The principle of laser welding machine is to use high energy laser pulse to locally heat materials in a small area
The energy radiated by laser diffuses into the material through heat conduction, and melts the material to form the product of a specific molten pool. The technology is that after laser focusing, the spot size is small, and the adhesion between the two materials is better in the process of laser welding, which will not cause damage and deformation of the material surface, so after welding, there is no need for post-treatment of the weld.
The advantages of the technology are as follows: 1. It is a kind of non-contact welding machine. The operation process does not need pressure welding machine. It has the advantages of high speed, high efficiency, large depth, small residual stress and small deformation. It can be welded at room temperature or under special conditions (such as closed space). The welding machine is simple and does not produce X-ray.
2. Welding machine and other high melting point metal refractories, even suitable for the welding machine of ceramics, plexiglass and other non-metallic materials, welding of special-shaped materials, with good effect and great elasticity. The non-contact long-distance welding machine can be applied to parts that are difficult to access the welding machine. The switching device can transmit the laser beam to multiple workstations. Therefore, multi beam simultaneous processing and multi station processing can be carried out, which provides a more accurate welding machine. Conditions.
5. Due to non-contact processing, no tool loss and tool replacement, and no need to use electrodes, there is no need to worry about electrode pollution or damage, and it is easy to automate high-speed welding machine, which can be digitized or controlled by computer.
The disadvantages of the technology are as follows: 1. There are some limitations with the traditional welding machine technology: 2. The cost of laser and its related systems is high, and the investment of disposable equipment is large. In the process of welding machine, the welding machine is required to have high assembly accuracy, and there is no need to make the position of the beam on the workpiece significantly offset.
4. The thickness of welding machine is smaller than that of electron beam welding, so it is more difficult to weld some high reflectivity metals.
Laser welding machine can be used for spot welding, butt welding, butt welding, sealing welding, etc., for welding thin-walled materials and precision parts. It is widely used in automobile industry, electronic industry, powder metallurgy and other fields. I believe that in the future development process, the prospect will be more broad.