What is laser processing. precision machining service in China: Precision Manufacturing
Laser processing uses the energy of the light to reach a very high energy density at the focal point after being focused by the lens, and is processed by the photothermal effect. Laser processing does not require tools, processing speed, surface deformation, can process a variety of materials. The laser beam is used to perform various processing on the material, such as drilling, cutting, dicing, welding, heat treatment, and the like. Some substances with metastable energy levels will absorb light energy under the excitation of external photons, so that the number of high-level atoms is greater than the number of low-level atoms—inversion of the number of particles. If there is a beam of light, photon The energy is equal to the difference between the two energy. At this time, stimulated radiation will be generated and a large amount of light energy will be output. precision machining service in China: Precision Manufacturing
Laser processing advantages:
From the perspective of the application of global laser products, the material processing industry is still its main application market, accounting for 35.2%; the communications industry ranks second, accounting for 30.6%; in addition, the data storage industry occupies the third place. , its share of 12.6%.
Compared with traditional processing technology, laser processing technology has the advantages of less material waste, significant cost effect in large-scale production, and strong adaptability to processing objects. In Europe, laser technology is used for the welding of special materials such as high-end automobile shells and bases, aircraft wings and spacecraft fuselage. precision machining service in China: Precision Manufacturing
Laser processing is non-contact processing, and the energy of the high-energy laser beam and its moving speed are adjustable, so it can achieve a variety of processing purposes. It can process a variety of metals, non-metals, especially materials that can handle high hardness, high brittleness and high melting point. Laser processing flexibility is mainly used for cutting, surface treatment, welding, marking and punching. Laser surface treatment includes laser transformation hardening, laser cladding, laser surface alloying, and laser surface fusion.
Laser processing technology has the following unique advantages:
1 The use of laser processing, high production efficiency, reliable quality and economic benefits.
2 It is possible to perform various kinds of processing on the workpiece in a closed container through a transparent medium, and it is possible to use a robot for laser processing in a harsh environment or in a place inaccessible to other people. precision machining service in China: Precision Manufacturing
3 There is no “tool” wear during laser processing, and no “cutting force” acts on the workpiece.
4 can be a variety of metal, non-metallic processing, in particular, can handle high hardness, high brittleness and high melting point of the material.
5 The laser beam is easy to guide and focuses for various directions. It is easy to cooperate with the CNC system and process complex workpieces. Therefore, it is an extremely flexible processing method.
6 no contact processing, no direct impact on the workpiece, so no mechanical deformation, and high-energy laser beam energy and its speed can be adjusted, so you can achieve a variety of processing purposes. precision machining service in China: Precision Manufacturing
7 During laser processing, the laser beam has high energy density, fast processing speed, and is locally processed. It has no or minimal impact on non-laser irradiated parts. Therefore, the heat affected zone is small, the thermal deformation of the workpiece is small, and the subsequent processing volume is small.
8 The divergence angle of the laser beam can be <1 milliarc, the spot diameter can be as small as micrometers, and the action time can be as short as nanoseconds and picoseconds. At the same time, the continuous output power of high-power lasers can reach the order of kW to 10 kW. Therefore, the laser is suitable for both precision micro-machining and large-scale material processing. The laser beam is easy to control and easy to combine with precision machinery, precision measurement technology and electronic computers to achieve highly automated machining and high machining accuracy. precision machining service in China: Precision Manufacturing