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Advantages and disadvantages of laser welding machine technology

by:J&D WATER     2020-02-14
Laser welding machine, also known as laser welding machine and laser welding machine, is a laser equipment used for laser material processing. It is a thermal processing technology that uses laser beam as heat source, for mold and metal workpiece wear, scratch, pinhole, crack, defect deformation, hardness reduction, sand holes and other defects for deposition, sealing, repair function. The principle of laser welding machine is to use high-energy laser pulse to heat the material locally in a small area, and the energy radiated by laser diffuses to the inside of the material through heat conduction, A product that melts materials to form a specific molten pool. The laser welding machine technology is that after the laser is focused, the light spot is small, which also makes the adhesion between the two materials better in the process of laser welding, it will not cause damage and deformation of the surface of the material, so after the welding is completed, there is no need to do post-processing on the weld. Introduction to the advantages of laser welding machine technology: 1. Laser welding machine is a non-contact welding machine. The operation process does not need pressure. The welding machine has fast speed, high efficiency, large depth, small residual stress and deformation, can be at room temperature or under special conditions (Such as closed space) Carry out welding machine, welding machine equipment device is simple, do not produce X-ray. 2. It can be used for welding machines such as refractory materials of high melting point metals, and even welding machines of non-metallic materials such as ceramics and plexiglass. It can be used for welding special-shaped materials with good results, and it has great flexibility, and can implement non-contact long-distance welding machine for parts that are difficult to access by the welding machine. 3. The laser beam can obtain a very small light spot by focusing. Since it is not affected by the magnetic field and can be accurately positioned, it can be used for micro welding machine, which is suitable for the assembly welding of micro and small workpieces in mass automatic production. 4. The laser beam is easy to realize the beam splitting according to time and space, and the switching device can transmit and lift the laser beam to multiple workstations. Therefore, it can simultaneously process multiple beams and multi-station processing, it provides conditions for more precise welding machines. 5, laser welding machine because of non-contact processing, no tool loss and tool exchange and other issues, at the same time, it does not need to use the electrode, so there is no electrode pollution or damage concerns, and it is easy to automate high-speed welding machines and can also be controlled digitally or by computers. Disadvantages of laser welding machine technology introduction: 1. Laser welding machine compared with traditional welding machine technology, laser welding machine also has certain limitations: 2. The cost of laser and its related systems is relatively high, one-time equipment investment is large. 3, in the process of welding machine, requires the welding machine assembly precision is high, and requires the position of the beam on the workpiece can not have a significant offset. 4. The thickness of welding machine is smaller than that of electron beam welding, and it is still difficult to weld some metals with high reflectivity. Laser welding machine can realize spot welding, butt welding, overlapping welding, sealing welding and so on aiming at the welding of thin-walled materials and precision parts, and its application field is very extensive, in the automotive industry, electronics industry, powder metallurgy and other fields have applications, I believe in the future development process will be more broad prospects.
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