Aluminum and aluminum alloys play an important role in various materials used in modern engineering technology. Its annual output is second only to steel in the world and first in non-ferrous metals. If aluminum alloy first emerged in the aviation industry, in recent decades, aluminum and aluminum alloy have been widely used in aerospace, automobile, ship and even home decoration in addition to the aviation industry.
Aluminum alloy welding refers to the welding process of aluminum alloy materials. At present, the main welding processes of aluminum alloy are manual TIG welding, automatic TIG welding and MIG welding because of its high strength and light weight. Among them, argon arc welding is the most widely used one. However, with the development of the industry, the traditional argon arc welding can not meet the increasing processing needs of users in some fields.
Traditional argon arc welding not only needs mature technicians, but also is limited by slow welding speed, difficult welding and high ozone content during welding, which is harmful to human body; Due to the large heat affected area, easy deformation and difficult guarantee of weld quality, it has been restricted in the development of the industry.
Laser welding is a kind of high-energy density laser beam as a heat source to heat the material locally in a small area, melt the material and form a specific molten pool to achieve the effect of welding. In recent years, with the continuous progress of laser technology, the application of laser processing has become broader and more obvious.
Features
1.Fast welding speed and high processing efficiency;
2.No laser wire filling is needed to reduce the cost;
3.Reduce material deformation;
4.The weld is smooth and beautiful, reducing the subsequent grinding process.
After traditional welding, the welding points often need to be polished to ensure smoothness and no roughness, while laser welding just reflects more advantages in processing effect.
