Laser technical knowledge Introduction
Laser technology is the birth of the early 1960s, and has grown rapidly in a high-tech. Its development and penetration, led to the development of other disciplines and technologies, laser technology has become the one of the main pillars of century high-tech industry. Laser engraving machine laser processing research experts point out that laser technology is mainly used in industry, laser processing technology to accelerate the transformation of traditional processing industry, providing a new means of modern industrial processing technology, a significant influence. Laser engraving machine experts, laser processing features: laser beam energy is highly concentrated, small processing area, thus the thermal deformation of small, high processing quality, high precision, machining parts from the size, shape restrictions, without cooling medium, and pollution , low noise, low labor intensity, high efficiency. Industrial laser processing technology is emerging in China.
Laser heat treatment is the use of high power density of the laser beam on the metal surface treatment method, laser engraving machine experts pointed out that it can achieve a phase change material hardening (or called surface hardening, surface amorphous, surface remelting pure fire), surface alloying surface modification, surface hardening produced by other unattainable surface composition, organization, change properties.
Laser engraving machine experts pointed out significant features laser heat treatment is: a high-speed heating, high-speed cooling, the organization received a fine, high hardness, good wear resistance; hardening parts is greater than the residual compressive stress obtained 400kgf / mm2 to help improve fatigue performance; can also be selectively hardened locally, by multiple spot size control, it is more suitable for other thermal hardening methods can not competent local area hole, groove, micro-area, and the angle between the tool edge and the like; laser can be much distance transmission, can achieve a laser multi-table simultaneously, using a computer program to realize the laser heat treatment process control and management, automated production process.
Laser is a high-tech, very broad applications. Laser engraving machine experts presented three key laser heat treatment technology: high power laser; more freedom processing equipment and computer support; laser heat treatment process for different applications. After China's laser science and technology personnel more than ten years of efforts, these three aspects of the fast development and create conditions for the promotion of laser heat treatment technology.