How thick the laser welding machine can weld

　　The welding thickness of laser welding is different from the power of laser welding equipment and the welding material of the equipment. Generally, the welding depth of laser welding machine can reach 7mm, and the firmness can be achieved according to your needs.

　　1000w laser welding uses high-energy laser pulses to locally heat the material in a small area. The energy of laser radiation is transmitted to the inside of the material through heat, melting the material to form a specific molten pool, and it is easy to automate. So how thick can the laser welding machine be welded? As long as the welding requirements are met, to be precise, general materials are acceptable.

　　Laser welding uses high-energy laser pulses to locally heat the material in a small area. The energy of laser radiation is transmitted to the inside of the material through heat, melting the material to form a specific molten pool. It is a new type of welding method, mainly used for welding precision parts of thin-walled materials. It can realize spot welding, butt welding, overlap sealing welding, etc. The width of the weld is small, the heat affected zone is small and the deformation is small, the welding speed is fast, and the weld is flat. , The welding quality is high, the precision can be accurately controlled, the positioning accuracy is high, and the automation is easy. Laser welding machine is often called laser welding machine energy negative feedback laser welding machine laser cold welding machine laser argon welding machine laser welding equipment. With the continuous development of science and technology, traditional welding methods cannot meet the special requirements of materials in many industrial technologies. The advantages of laser welding machines are low bonding strength and wide heat affected zone, especially in many industries have gradually replaced traditional Welding method.

　　 Three major defects of laser welding

　　Because the laser technology has the characteristics of low welding heat input, small influence of the welding heat area and not easy to deform, it has received special attention in the field of aluminum alloy welding. On the other hand, due to its own defects, there are three major welding difficulties in laser welding. So how to solve it cleverly?

　　Welding difficulties 1. Low laser absorption rate of materials

　　A) Adopt appropriate surface pretreatment process. For example, pretreatment measures such as sandpaper polishing, surface chemical etching, and surface plating. Increase the absorption rate of the material to the laser.

　　B) Reduce the spot size and increase the laser power density.

　　C) Change the welding structure to make the laser beam reflect multiple times in the gap. Facilitate aluminum alloy welding

　　Welding difficulty two, easy to produce pores and hot cracks

　　1) After many welding experiments and researches, it is found that adjusting the laser power waveform during welding can reduce the unstable collapse of pores. Changing the angle of laser beam irradiation and applying a magnetic field during welding can all reduce pores during welding.

　　2) When using YAG laser, you can adjust the pulse waveform to control the heat input to reduce crystal cracks.

　　Welding difficulties 3. During the welding process, the mechanical properties of the welded joints decrease

　　Due to the instability of pores produced by aluminum alloy welding, the mechanical properties of the welded joint are caused. Aluminum alloys mainly include three elements: Zn, Mg, and Lv. When welding. The boiling point of aluminum is higher than that of the other two elements. Therefore, some low-boiling alloy elements can be added when welding aluminum alloy elements, which is beneficial to the formation of small holes and the firmness of welding.

　　 The high efficiency of laser welding of aluminum alloy makes people look forward to its development prospects. Therefore, some researchers continue to develop new technologies such as laser-arc coincidence technology and dual focus technology to improve the stability of the welding process and improve the quality of the weld.