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Laser welding machine manufacturers: application of laser welding machine welding technology in industry

2021-05-03

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With the development of economy, many industrial products industries uselaser welding machine. What is a laser welding machine? I believe many people who are first exposed to this field have questions, so what are the characteristics of laser welding?

The laser welding machine uses a high-energy density laser as a heat source to irradiate the joints of the material, so that the separated material absorbs the laser energy to form a molten pool and then quickly melts or even vaporizes, and solidifies together to form a connection. used together in the subsequent cooling process. Seeing some of the judges here, I can't help but ask, where is the laser? Why didn't I see it. This is because there are two common high power lasers for laser welding: CO2 lasers and solid state/fiber lasers. The wavelength of the former is 10.6 μm, or the wavelength is 1.06 /1.07 μm, both of which are in the infrared band, so invisible to the naked eye.

Secondly, compared with traditional resistance spot welding, laser welding machine has higher strength

The main features of the laser welding machine are that the heating range is centralized and controllable, the welding deformation is small, and the welding speed is fast. To help you make up, let's compare laser welding and ordinary electric arc welding. The diameter of the laser spot can be controlled. Generally, the diameter of the spot irradiated on the surface of the material is in the range of 0.2-0.6mm, and the closer to the center of the spot, the higher the energy (the energy decays exponentially from the center to the edge), that is, (Gaussian distribution), and the width of the laser welding seam can be controlled below 2mm. The arc width of arc welding is uncontrollable and is much larger than the laser spot diameter, and the welding width of arc welding is also much larger than laser welding, usually greater than 6mm. Because the energy of laser welding is very concentrated, the material to be melted is less, and the total heat required is small, so the welding deformation is small and the welding speed is fast.