Laser heat treatment technology and broad prospects
Laser is a high-tech, very broad applications. The key technology of laser heat treatment there are three: high-power lasers; multi-degree of freedom and the processing equipment and computer support; different applications of the laser heat treatment process. Laser science and technology personnel in China after more than ten years efforts, the three have a very fast development of laser heat treatment technology has created conditions to promote.
In recent years, the laser industry to double-digit growth rate, higher than the international rate of the laser industry, but also higher than the national industrial growth rate, shows that the prospects are far-reaching.
Laser heat treatment technology is not yet widespread in China, mainly for the application of laser technology, there are varying degrees of the mystery and prejudice. Laser technology, laser heat treatment to promote the application of inadequate, the lack of practice. So as soon as possible to the scientific research of laser technology, especially the laser heat treatment technology for economic, market-oriented, whole of society, mainly for industrial enterprises in services, continuing efforts to promote and expand its application. (Source: Institute of Network)
The characteristics of laser heat treatment technology
Laser treatment is the use of high power density of laser beam on the metal surface treatment method, it can achieve the phase change of metal hardening (or known as surface hardening, surface amorphization, surface remelting pure fire), surface alloying, such as surface modification, resulting in quenching of its large surface below the surface composition, organization, and performance changes. After laser treatment, the cast iron surface hardness can reach HRC60 degrees, the carbon-carbon and carbon steel, the surface hardness up to HRC70 degrees Celsius, thereby enhancing the abrasion resistance from anti-fatigue, anti-corrosion, anti-oxidation properties, the extension of their useful life. laser treatment such as heat treatment technology and other high-frequency hardening, carburizing, nitriding, etc. compared to traditional crafts, have the following characteristics:
1. Without the use of additional materials, only to deal with changing the organizational structure of the surface material. Treated the modified layer has sufficient thickness, can be adjusted in accordance with the general depth of up to 0.1-0.8mm;
2. To deal with the matrix layer and high bond strength. Laser surface treatment of the modified layer and substrate material is between the metallurgical combination of dense and compact surface layer of metallurgical organizations, have a high hardness and wear resistance;
3. Was dealing with very small pieces of deformation, as the laser power density, and the role of parts is very short (seconds 10-2-10), so parts of the thermal deformation zone and the overall changes are small. It is suitable for high-precision parts processing, materials and spare parts as the final treatment processes;
4. Flexible processing, and apply a wide range. The use of flexible optical system will be free to deal with some laser-guided, which can be easily dealt with deep, with holes, blind holes and grooves, etc., can be selective partial treatment.
