With the continuous development of science and technology, many industrial technologies have special requirements for materials, and the materials made by smelting and casting can not meet the needs. Therefore, it is particularly necessary to use powder metallurgy to make some materials used in modern industry. With the increasing development of powder metallurgy materials, the connection between powder metallurgy materials and other parts has become increasingly prominent. Brazing and projection welding have always been the most commonly used methods for the connection of powder metallurgy materials. However, due to the low bonding strength and wide heat affected zone, the application of powder metallurgy materials is limited because they are not suitable for the occasions with high temperature and high strength requirements.
Laser welding machine technology has entered the field of powder metallurgy material processing with its unique advantages. Compared with the traditional welding method, laser welding has the advantages of large depth width ratio, narrow weld and high weld bond strength; The heat affected zone is small, which has no effect on the surrounding structure, and the welding deformation is small; It can realize the automation of welding process and has high production efficiency, so it has developed rapidly in the field of powder metallurgy material processing.
What are the advantages of laser welding machine in powder metallurgy industry?
1. Humanized design, LCD display, centralized button operation is simpler.
2. The welding seam of the precision laser welding machine is high in quality, flat and beautiful, without air holes, and the toughness of the material after welding is at least equivalent to that of the parent material.
3. Precision laser welding machine can realize spot welding, butt welding, overlap welding, seal welding, etc. for thin-walled materials and precision parts.
4. The precision laser welding machine has high laser power, high depth width ratio, small heat affected area, small deformation and fast welding speed.
5. The current waveform of the precision laser welding machine can be adjusted arbitrarily. Different waveforms can be set according to different welding materials to match the welding parameters with the welding requirements, so as to achieve the best welding effect.
6. The four-dimensional ball screw workbench of the precision laser welding machine adopts the imported servo control system and the optional rotary workbench, which can realize automatic welding such as spot welding, linear welding and circumferential welding. It has a wide range of applications, high precision and fast speed.
Laser welding machine has entered the field of powder metallurgy material processing with its unique advantages, opening up a new prospect for the application of powder metallurgy materials. For example, the brazing method commonly used in the connection of powder metallurgy materials is used to weld diamond. Due to the low bonding strength, wide heat affected zone, especially the inability to adapt to high temperature and high strength requirements, the solder melts and falls off. The laser welding machine is used to improve the welding strength and high temperature resistance.
