Aluminum and aluminum alloys play a pivotal role in various materials used in modern engineering technology. It ranks second in the world's annual output after steel, and ranks first in non-ferrous metals. If aluminum alloy first emerged in the aviation industry, then in recent decades, in addition to the aviation industry, aluminum and aluminum alloys have been widely used in aerospace, automobiles, ships and even home decoration.
Aluminum alloy welding refers to the welding process of aluminum alloy materials. Due to its high strength and light weight, the main welding processes in the industry are manual TIG welding, automatic TIG welding and MIG welding. Among them, argon arc welding is the most widely used one. However, with the development of the industry, traditional argon arc welding has been unable to meet the increasing processing needs of users in some fields.
Traditional argon arc welding not only requires mature technicians, but also is limited by slow welding speed, difficult welding, high ozone content generated during welding, which is harmful to human body; large heat-affected area, easy to deform, and poor weld quality Influenced by unfavorable factors such as difficult guarantees, it has been subject to many constraints in the development of the industry.
Laser welding is a kind of high-energy-density laser beam as a heat source to locally heat the material in a small area, and melt the material to form a specific molten pool to achieve the welding effect. In recent years, with the continuous advancement of laser technology, the application of laser processing has become more and more extensive, and the advantages have become more and more obvious.
- Fast welding speed and high processing efficiency;
- No need for laser wire filling, reducing costs;
- Reduce material deformation;
- The welding seam is smooth and beautiful, reducing the subsequent grinding process.
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Stable weld surface formation without spatter
Weld metallographic diagram
The picture shows 0.8mm + 1.2mm 6 series aluminum alloy tailor welding
