Laser welding is a process in which a high-energy laser beam is used to melt and join materials to form an excellent welded joint. Laser welding has a high energy density and a small laser spot diameter, and its energy density is more than 100 times higher than that of the conventional method, and at the same time, a 0.5 mm wide bead can be formed. The laser welding technology has a molten pool purification effect, which can purify the weld metal and is suitable for welding between the same and different metal materials. Laser welding has a high energy density and is particularly advantageous for metal welding with high melting point, high reflectivity, high thermal conductivity and physical properties. Therefore, laser welding has the advantages unmatched by conventional welding methods, such as fast welding speed, small deformation of the workpiece, large weld ratio of the weld, fine grain, simple post-weld treatment, good weld quality, etc. Deep-drawing performance and toughness are generally superior to the base metal, capable of welding the same kind or dissimilar materials or refractory materials under various special environments, and achieving the characteristics of welding of unequal thickness materials. The laser welding was carried out on galvanized sheet, galvanized original sheet, silicon steel sheet and tin plate with thickness of 0.2mm to 3.0mm. The influence of laser process parameters on welding quality was systematically studied. With laser welding, it is almost possible to connect different steel plates of different thicknesses, grades, grades, plating layers, etc., into various shapes, which greatly enhances the flexibility of the automobile design. Laser welding of unequal slabs is becoming a common technique in the automotive industry. The body and chassis of a car consist of more than 300 parts. The splicing blank welding technology can reduce the number of parts by 66%, greatly reducing the number of molds and increasing material utilization. It adopts various kinds of stainless steel and high-temperature alloy pressure vessels used on laser welding ships. It has good sealing performance, strong pressure resistance, and small deformation of the container after welding. It has been applied in industry. >> Into the colorful world of laser welding Â
High power laser
CON.PRIMA SR10 MW CO2 Laser
The 10,000-watt CO 2 laser is imported from the US company CONVERGENT PRIMA, model SR10, as shown. The laser has high power, and the optical path, gas path and water path are all controlled by computer, and can work continuously for more than 24 hours under the power of 10000W.
The laser is a six-fold unstable cavity with excellent laser beam quality and can be used for laser welding of thick steel plates.
The SR10 type 10,000-watt laser uses the unique laser output pneumatic window of the high-grade copper mirror to overcome the shortcomings of the conventional laser crystal output window mirror, and its working stability is very high.
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