Fiber lasers have excellent applications in industrial marking and engraving. Not only that, fiber laser pointer have a wide pulse width, high peak power, high frequency, and excellent beam quality, which can meet the needs of high-quality industrial processing. Dissimilar metal materials also have excellent performance in welding, mainly used in 3C electronics, new energy and other fields.
Welding process guidance:
1. Welding laser: the thicker the metal material, the higher the reflectivity of the material, and the higher the laser power required;
2. Welding method: According to the shape of the welding area, you can choose spiral spot welding or jitter wire welding;
3. Welding configuration: galvanometer scanning welding. Due to the high welding blue laser pointer power, it is recommended to use fused silica or composite material focusing field lens to prevent welding instability caused by thermal lens problems;
4. Welding parameters: medium and small pulse width, high frequency, medium and low speed, can be welded firmly, and the welding surface is flat and smooth.
Laser welding can greatly improve the production level and quality of internal components of electronic products. In mobile phones, laser welding is used in many places, such as mobile phone midplane shrapnel, antenna shrapnel, camera module shrapnel welding, etc., laser welding is used to weld metal shrapnel In the conductive position, it can effectively prevent oxidation and corrosion without affecting the conductivity. The shrapnel material is generally copper nickel plated, aluminum gold plated, steel copper plated, steel gold plated, etc., and the mobile phone shell material is generally aluminum or aluminum-magnesium alloy .
2. Battery industry
The new energy industry has developed rapidly in recent years. Among them, lithium battery and power battery connecting pieces can be well applied to pulse laser welding. The metal connecting pieces of different properties are welded to the battery electrodes by laser, so that they are perfectly combined, which has both strength and Does not affect conductivity. The material of the connecting piece is generally aluminum, nickel, nickel-plated copper, etc., and most of the battery electrode material is aluminum or copper. Using laser to weld the battery connecting piece, the heat affected zone of the welding spot is small and beautiful, and the welding penetration is deeper than traditional laser.