With the continuous upgrading of laser welding technology, there has been a qualitative leap in laser welding technology. At present, laser welding machines have been widely used in high-tech electronics, automotive manufacturing, precision machining and other fields. Laser welding, as a direction of laser application, is a combination of current and traditional technologies, but it has different advantages compared to traditional processing.
1. Good laser beam quality After laser focusing, the power density is high. After focusing a high-power low-order mode laser, the focal spot diameter decreases. Due to its high power density, a small hole is formed on the metal material during laser welding, and laser energy is transmitted to the deep part of the workpiece through the hole, resulting in less lateral diffusion. Therefore, the depth of material melting during the laser beam scanning process is large. Fast speed and large welding area per unit time. As the laser welding machine has large length diameter ratio, small specific energy, small Heat-affected zone and small welding deformation, it is especially suitable for welding precision and heat sensitive parts, and can save post welding correction and secondary processing. The laser welding machine can achieve welding at any angle and can weld parts that are rarely visited. It can weld various complex welding workpieces and large workpieces with irregular shapes. Great flexibility for welding at any angle. Laser welding can not only be used for welding between various heterogeneous metal materials, but also for metals such as titanium, nickel, zinc, copper, aluminum, chromium, niobium, gold, silver, and their alloys, steel, kovar alloys, etc.. Welding between alloy materials. Due to the extremely low heat input during laser welding, the deformation after welding is very small, which can achieve a very beautiful welding effect on the surface. Therefore, the subsequent treatment of laser welding is very small, which can greatly reduce or eliminate the manual labor involved in the polishing and leveling process. The welding equipment of the laser welding machine is simple, the operation process is easy to learn, and the use is convenient. The professionalism of employees is not high, saving labor costs. The high safety welding joint is only effective when contacting metal, and the Touch switch has a temperature sensing function. Special laser generators have safety precautions during operation, and laser generator protective glasses must be worn during operation to reduce eye damage. Laser welding machines can be used in various complex working environments and can be welded at room temperature or under special conditions. For example, laser welding is similar to electron beam welding in many aspects. Its welding quality is slightly inferior to that of electron beam welding, but the electron beam can only be transmitted in a vacuum, so welding can only be carried out in a vacuum, and laser welding technology can be more advanced. Suitable for various working environments. However, laser welding machines also have certain limitations. Due to the high system costs associated with laser systems, the one-time investment cost will be higher. In addition, the laser welding machine also requires high installation accuracy of the welded parts, and the position of the light source on the commodity workpiece must not have significant deviation. It can be seen that the top ten advantages of laser welding machines are far superior to traditional welding methods. In the future, the application of laser welding technology will not be limited to the current fields of electronics, automobiles, instruments and meters.. It will also be widely applied in the military and medical fields, especially in the medical field. It has great development prospects.
2. Laser welding has fast speed, large depth, and small deformation
3. Laser welding is particularly suitable for welding precision sensitive parts
4. High flexibility of laser welding machines
5. Laser welding can weld difficult to weld materials
6. Low labor cost of laser welding machines
7. The laser welding machine is easy to operate
8. Laser welding machines have strong safety performance
9. The working environment of laser welding machines is diverse
10. The welding system has high flexibility and is easy to achieve automation
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