The industrial application of laser manufacturing technology in the field of defense and aerospace has great prospects, with high efficiency, low energy consumption, short processes, good performance, digitalization, and intelligence.
Energy characteristics. In view of the status quo, China will continue to take advantage of laser manufacturing technology, change the status of key components and technologies in China's aerospace industry relying on imports, and eventually form a new generation of laser manufacturing industry chain in China.
Huagong Laser Intelligent Equipment Business Group integrates laser welding technology with aerospace manufacturing technology. As a mature technology, it has become an important means for the connection of lightweight alloys for aviation. Plays a pivotal role.
High power laser welding
Titanium alloys are widely used in aircrafts, and have been transformed from sub-bearing structural components to primary structural components. Aluminum alloys are the main structural materials for launch vehicles and various spacecraft. First, by comparing the traditional welding of aluminum alloy and titanium alloy with laser composite welding, it highlights the advantages of laser processing with energy concentration, easy operation, high flexibility, energy saving and environmental protection, and high quality and efficiency.
Laser welding of aircraft alloy siding
Reasons for using wire filler welding: the strength of aluminum and aluminum alloys is very low at high temperatures, the liquid aluminum has good flow properties, and the weld metal is prone to collapse during welding.
Advantages: Low requirements for seam accuracy and high weld strength.
Material selection principle: The purity of pure aluminum welding wire is generally not lower than the base metal chemical composition, corresponding to or similar to the base metal, and the content of corrosion resistant elements (magnesium, manganese, silicon, etc.) is generally not lower than the base metal. When welding dissimilar aluminum materials, the welding wire should be selected according to the base material with high corrosion resistance and high strength.
High-power laser cutting and drilling
Laser cutting materials in the aerospace industry include titanium alloys, nickel alloys, chromium alloys, aluminum alloys, beryllium oxide, stainless steel, molybdenum titanate, plastics, and composite materials. Laser cutting can be used to process aircraft skins, honeycomb structures, frames, wings, tail panels, helicopter rotors, engine cases, and flame tubes. Laser cutting generally uses continuous output lasers YAG and CO 2 lasers, but also high-repetition-rate CO 2 pulsed lasers.
High reliabilityLaser processing is stable and reliable, which can meet the needs of large-scale processing
high speedUp to 2-4m / min, 8-20 times increase in work efficiency
low costCan save material 20% -25%
Narrow slit0.1-0.2mm, can also be tailored