Working principle of fiber laser welding machine

Source:razorteklaser  Time:2024-09-13

Fiber laser welding machine, as an advanced welding technology, plays an important role in modern industry. This article will delve into the working principle of fiber laser welding machines to help readers better understand their working mechanisms and advantages.

1. Laser generated

Fiber laser welding machines use lasers to generate high-energy laser beams. The gain medium in lasers is usually optical fibers doped with rare earth elements. When the pump light is irradiated onto the fiber, it excites the energy level transition of rare earth elements, thereby generating laser.

2. Beam transmission

The generated laser is transmitted through optical fibers. The special structure of optical fibers can effectively restrict and guide laser beams, ensuring the quality and stability of the beams.

3. Focusing lens

The laser beam is focused onto the welding area through a focusing lens. The function of a focusing lens is to focus the light beam onto a very small spot to increase power density.

4. Welding process

When a high-energy laser spot is irradiated onto the surface of the welding material, the material absorbs the laser energy and rapidly heats up and melts. The energy density of the laser beam is very high, which can quickly bring the welding area to the melting temperature.

5. Welding advantages

Compared to traditional welding methods, fiber laser welding machines have the following advantages:

High energy density, fast welding speed, and high efficiency;

Fine welds, stable quality, and minimal welding deformation;

Remote welding can be achieved, suitable for complex structures and difficult to reach areas;

High degree of automation can significantly improve production efficiency;

6. Application Fields

Fiber laser welding machines are widely used in the following fields:

Automobile manufacturing

Aerospace

Electronic devices

Medical apparatus and instruments

In short, the working principle of fiber laser welding machine is based on the generation, transmission, focusing, and material melting process of laser. Its high energy density and excellent welding performance make it widely used in many fields. With the continuous development of technology, fiber laser welding machines will continue to play an important role and bring greater benefits to industrial production.