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Laser welding machine application on aluminum alloy products - Shenzhen Sun Laser

The aluminum alloy has light weight, good toughness and certain strength. It is the most widely used non-ferrous metal structural material in the industry and has been widely used in aerospace, aviation, automobile, machinery manufacturing and chemical industries.

Aluminum alloy is a kind of non-ferrous metal, which has strong reflection to various light. The surface is easy to form oxidized film with refractory properties. It is easy to form defects such as unfused, inclusion, pore and crystal cracks in the weld by ordinary welding method. As a more intense beam, the laser is more likely to cause reflection on the surface of the aluminum alloy. In other words, the non-ferrous metal aluminum alloy has high reflectivity and small absorption rate for the laser.

In addition, the metal has thermal conductivity, so the aluminum alloy also has a strong thermal conductivity. When laser welding is used, it is easy to reflect the laser or quickly transfer the heat of the laser, which eventually leads to the failure of the aluminum alloy welding.

Aluminum products Laser welding machine, because the laser is realized by pulse or continuous laser beam, when the laser beam directly illuminates the surface of the aluminum alloy, the heat on the metal surface can be quickly diffused into the interior of the aluminum alloy, so that a weld seam forms quickly on the aluminum alloy. And simultaneously a reaction force forms on the molten metal to dent the molten aluminum alloy surface to form small holes.

The aluminum alloy laser welding machine developed by Shenzhen Sun Laser has high energy density, low heat input, little thermal deformation, narrow melting zone and heat-affected zone, large penetration depth, high cooling rate and fine weld structure, and good joint performance. The metal material inside the sealed transparent object can be welded. Compared with the contact welding, the laser welding machine does not use the electrodes, so the working time and cost are reduced. The laser can be transmitted over long distance with optical fibers, so it has good process adaptability. And the automation and precise control of the welding process can be implemented by computer and robot.

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