With the rapid development of industry and science and technology, many industrial products have begun to use aluminium alloy as raw materials, aluminium alloy products can be made into engines, instruments, car parts and other products through the process of welding or cutting, laser welding machine welding aluminium alloy products not only improves the welding efficiency, but also welds the welding effect is good, does not blacken, weld the original colour, weld seam perfect. Come together to understand the principle and advantages of laser welding machine welding aluminium alloy.

　　First, the principle of laser welding machine welding aluminium alloy

　　1. Rapid formation of weld

　　Aluminium alloy laser welding machine products, because the laser to achieve a pulsed or continuous laser beam, the laser beam directly gathered on the surface of the aluminium alloy when the laser beam can quickly diffuse heat in the metal surface of the aluminium alloy inside the melted metal to form a reaction force, so that the aluminium alloy melt rapid formation of weld seams, melted aluminium alloy surface downward concave to form a small hole.

　　2. Aluminium alloy surface cleaning

　　When laser welding aluminium alloy, because aluminium alloy is a kind of non-ferrous metal, it has strong reflectivity to all kinds of light, and the surface of aluminium alloy will have light reflection phenomenon. Therefore, before welding the aluminium alloy material, it is necessary to clean the surface of the aluminium alloy, and clean the surface of the aluminium alloy from oil or other stains. At the same time to prevent oxidation in the welding caused by explosion and other safety threats, also need to clean the metal surface of the oxide film, remove the oxide film.

　　Second, laser welding machine welding aluminium alloy advantages

　　1. High energy density and small thermal deformation

　　High energy density, small output and heat source centralisation, small heat distortion, melting zone and heat-affected zone is narrow, melting depth; cooling rate is high, the weld tissue is fine, joint performance is good; can be welded closed transparent objects inside the metal material.

　　2.Cost saving

　　Compared with traditional welding, laser welding does not use electrodes, reducing human resources; saving production costs.

　　3. Convenient welding conditions

　　E-beam welding does not require a vacuum environment, protective gas and protective pressure can be selected. The shape of the welded parts is not affected by electromagnetism and does not produce x-rays.

　　4. Automatic control of welding process

　　 The laser can be transmitted over long distances by optical fibre, with good process adaptability. With the cooperation of computer and robot, the automation and precision control of welding process can be realised.

　　Laser welding machine can weld aluminium alloy, but also carbon steel, stainless steel, aluminium products, brass and other products. When welding, pay attention to safety precautions and operate in accordance with regulations. With the popularity of the application of laser welding machine for welding aluminium alloy products is more and more widely, more about laser welding machine, welcome to call or message to Henan Demijia Machinery Equipment Co.