With the rapid development of laser processing equipment and technology in foreign countries, there are 100kW high-power CO2 laser, kW class Nd: YAG solid-state laser with high beam quality, and some can be equipped with optical fiber for multi station and long-distance work. Laser processing equipment has high power and high degree of automation. CNC control, multi coordinate linkage, laser power monitoring, automatic focusing, industrial television display and other auxiliary systems are widely used.
The minimum hole diameter of laser drilling has reached 0.002mm. The automatic six axis laser drilling equipment has been successfully used to process the gas film holes of Aero-engine Turbine Blade and combustion chamber, so as to achieve the effect of no recast layer and no microcrack.
Laser cutting is suitable for parts made of heat-resistant alloy, titanium alloy and composite materials. At present, the cutting speed of thin material can reach 15m / min, the cutting seam is narrow, generally between 0.1 ~ 1mm, the heat affected zone is only 10% ~ 20% of the width of the cutting seam, and the maximum cutting thickness can reach 45mm. It has been widely used in aircraft three-dimensional skin, frame, ship hull frame, helicopter rotor, engine combustion chamber, etc.
Laser welding of sheet metal has been widely used in automobile industry, aerospace industry and instrument industry. Laser micro welding technology has become an important means of micro connection of micro package nodes in avionics and high precision mechanical equipment.
Laser surface strengthening, surface remelting, alloying and amorphization are more and more widely used. The application of laser micro machining in electronic, biological and medical engineering has become an irreplaceable non-traditional machining technology.
Laser rapid prototyping technology has developed from the research and development stage to the practical application stage, and has shown a broad application prospect