What Materials Can Laser Welding Machine Weld?

With the continuous development of science and technology, the traditional welding method can not meet the special requirements of materials in many industrial technologies. The advantages of laser welding machine are low bonding strength and wide heat affected zone, especially in many industries. It has gradually replaced the traditional welding method. Laser welding equipment compared to traditional welding equipment, its more powerful, more reliable, does not require vacuum conditions and other operations more convenient, and can be welded to a wider range of material types. 

1. Carbon steel 

Carbon steel is a very common metal material, which is widely used in all parts of life. Carbon steel is welded by laser welding machine, and the effect is better. The impurity content determines the welding quality. When welding steel with different carbon content, the welding torch can be slightly shifted to the side of low carbon material to ensure the quality of the joint. As the laser welding machine welding heating speed and cooling speed is very fast, so when welding carbon steel, with the increase of carbon content, welding crack and notch sensitivity will increase. Medium and high carbon steel and ordinary alloy steel can be good laser welding, but need to be preheated and post-weld treatment to eliminate stress and avoid cracks. 

2.Stainless steel 

Stainless steel welding is easier to obtain high quality joints than conventional welding. Due to the high welding speed and small heat affected zone of laser welding, the overheating phenomenon and the adverse effect of large linear expansion coefficient during stainless steel welding are reduced, and the weld has no defects such as pores and inclusions. Compared with carbon steel, stainless steel is easier to obtain deep penetration narrow welds due to its low thermal conductivity, high energy absorption and melting efficiency. Welding sheet with low power laser welding can obtain good appearance, smooth and beautiful weld joints.

3.Aluminum alloy 

The biggest difficulty of laser welding aluminum sheet and aluminum sheet is its high reflectivity to laser beam. Aluminum is a good conductor of heat and electricity. The high density of free electrons makes it a good reflector of light. The initial surface reflectivity is more than 90 %. That is to say, deep penetration welding must start at less than 10 % of the input energy, which requires a high input power to ensure the necessary power density at the beginning of welding. 

Advantage of QY Laser handheld laser welding machine: 

◆labor-saving, fast, high efficiency, low cost ; 

◆Easy to operate, easy to learn, low experience requirements for operating workers, without skilled welders, easy to recruit workers through basic training can be carried out after welding operations, novices can also be welded aesthetic welds ; 

◆The continuous laser beam has good beam quality and high energy density. The welding speed is more than 2 times that of solid YAG laser welding and 3-5 times that of argon arc welding. At least 2 welders and 1 polisher can be saved in one year. 

◆Integrated design, laser, water tank, control part together, smaller footprint, low site requirements, equipped with mobile pulleys, according to site requirements, adjust the station at any time, convenient and flexible.

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