Nowadays, people are advocating the spirit of craftsman, which is because the spirit of craftsman to carve and improve their products is needed by everyone. It is this spirit that improves the accuracy of products and enables people to use high-quality products. Many people believe that the spirit of craftsman can only be used for manual processing. In fact, it is not. In machining, there is a process that can also achieve the spirit of craftsman, that is, laser processing.
Laser machining was born in 1963. Because of its advantages of less cutting, good precision and high degree of automation, it is widely used in machining production. Laser processing refers to the processing of metallic or non-metallic materials with high-energy laser beams. According to different mechanisms, it can be divided into two categories: one is the process of using materials to absorb laser energy for processing, such as cutting, welding, drilling and surface heat treatment. The other is the processing process using photochemical reaction and accompanying thermal effect, such as laser etching, doping and oxidation.
In actual production, laser processing is mainly used for cutting, welding and surface modification, which has many advantages:
1. High precision: the laser beam can be focused. The focused laser beam is a very small spot, which can make the processing achieve high precision, and the heating deformation of the workpiece is small. When cutting, the slit width is very small.
2. Avoid pollution: laser processing does not have direct mechanical contact with the workpiece, so it will not produce environmental pollution in the process of machining and gas processing, and it can also realize precision processing in special environments.
3. Strong penetrability: because the laser will not be weakened by other factors when passing through the air, it can be processed in various environments or completed in vacuum. And it can also penetrate the workpiece shell directly to the interior for some special processing.
4. Wide processing range: laser processing can not only be used for the processing of general materials, but also has a good effect on some extremely hard, brittle and high melting point materials. It is of great help to realize automation, improve production efficiency and improve accuracy. Therefore, laser processing has better economic benefits than other processing.
5. Laser welding does not need solder: this kind of welding can effectively avoid pollution, which is very helpful for some products with strict requirements, such as medical devices, food utensils, etc.
With the development of science and technology, laser processing is also advancing. People have seen the advantages of laser processing, and will vigorously develop and promote laser processing technology in the future.
