Hazards of laser welding work? What is the effect of laser welding, and the advantages and disadvant

Laser welding is a new type of metal welding technology, long-term engagement in this kind of work will make people's eyes and face suffer a certain degree of harm, therefore, practitioners should wear masks, as far as possible to minimize the harm, at the same time, you can usually eat more black fungus or mushrooms and other mushroom food, which will be good for the body.

Laser welding is widely used in this society, to a great extent to help enterprises or individuals improve the efficiency, laser welding compared with other welding technologies, the main advantages of laser welding are:

1. Fast speed, large depth and small deformation.

2. It can be welded at room temperature or under special conditions, and the welding equipment is simple.

3. It can weld refractory materials such as titanium, quartz, etc., and can weld heterosexual materials with good results.

4. After laser focusing, the power density is high, and the aspect ratio can reach 5:1 and up to 10:1 when welding high-power devices.

5. Micro welding can be carried out. After the laser beam is focused, a small spot can be obtained, and it can be accurately positioned, which can be applied to the assembly welding of micro and small workpieces produced in large quantities. (The smallest spot can be reached.)

6. It can weld the parts that are difficult to access, and implement non-contact long-distance welding, which has great flexibility.

7. The laser beam is easy to realize the beam splitting according to time and space, and can carry out multi-beam simultaneous processing and multi-station processing, which provides conditions for more precise welding.

However, there are certain limitations to laser welding:

1. The assembly accuracy of the weldment is high, and the position of the beam on the workpiece must not be significantly offset. This is because the laser focus is small and the weld is narrow, which is a filler metal material. If the assembly accuracy of the workpiece or the accuracy of the beam positioning does not meet the requirements, it is easy to cause welding defects.

2. The cost of lasers and their related systems is high, and the one-time investment is large.

Principle of laser welding:

Laser welding is to radiate a high-intensity laser beam to the surface of the metal, and through the interaction between the laser and the metal, the metal is melted to form welding.

In the interaction between laser and metal, metal melting is only one of the physical phenomena. Sometimes energy is not mainly converted into metal melting, but is manifested in other forms, such as vaporization, plasma formation, etc.

However, to achieve good fusion welding, metal melting must be made the primary form of energy conversion.

To do this, it is important to understand what is produced in the interaction between the laser and the metal.

The various physical phenomena and the relationship between these physical phenomena and laser parameters can be converted into the energy of metal melting by controlling the laser parameters, so as to achieve the purpose of welding.

The laser beam, fast welding speed, firm and beautiful weld seam, bring users efficient and efficient welding solutions.

2.The hand-held double swing head welding torch is ergonomically designed, flexible and convenient, and the welding distance is longer, which can realize the welding of any part angle of the workpiece.

3.The welding area has little thermal influence, is not easy to deform, blacken, and has traces on the back, and the welding depth is large, the melting is sufficient, firm and reliable.

4.Electro-optical conversion, low energy consumption, and easy to learn, no welding master, ordinary workers can take up their posts after a short training. Long-term use can greatly save processing costs.