As an efficient connection technology, laser welding has been widely used in many fields in recent years, especially in the automotive manufacturing, aerospace, medical equipment and precision instrument manufacturing industries. The latest technological advances are mainly focused on improving welding quality, enhancing process adaptability and expanding the scope of application.
1. Application of blue laser: In view of the welding problem of high-reflective materials such as copper and aluminum, blue lasers can achieve clean welding at lower power because of their higher absorption rate on these materials than infrared lasers.
Blue semiconductor lasers continue to promote changes in the processing methods of high-reflective materials such as copper and aluminum. Compared with infrared light, the high absorption rate of blue light for high-reflective metals brings huge advantages to traditional industrial applications (such as cutting and welding). Compared with infrared light, blue light has a shorter wavelength and lower penetration depth. This characteristic of blue light also makes it possible to be used in innovative fields such as thin film processing. In addition to material processing, the application of blue light in medical, lighting, pumping, consumer applications and other fields has also attracted much attention.
2. Swing welding technology: The laser-specific swing welding head swings the beam, which not only expands the processing range, but also increases the tolerance to the weld width, thereby improving the welding quality.
Advantages of swing welding
Larger swing spot size helps to bridge larger gaps
The required tolerance is lower, reducing welding consumables and reducing processing costs
Welding time is reduced to one-tenth, increasing welding output
Reduce or even eliminate the time for straightening welds, improving productivity
Reduce part deformation and improve equipment quality
Welding of dissimilar materials (steel and cast iron, stainless steel and chromium-nickel-inconel, etc.)
Low spatter, can be used for welding materials that are prone to cracking
Greatly reduce post-processing (cleaning, grinding...)
Great freedom in part design
3.Dual-focus laser welding: Studies have shown that dual-focus laser welding is more stable and controllable than traditional single-focus methods, reducing keyhole fluctuations and improving the stability of the welding process.
4.Welding process monitoring technology: Using coherent interferom etric imaging technology, a new full-process welding monitoring system has been developed that can adapt to keyhole geometry changes in different processes, providing accurate depth measurement and customized monitoring solutions for the welding process.
5. Diversification of laser welding heads: With the development of technology, laser welding heads have also been introduced in various types according to functions and needs, including high-power welding heads, laser galvanometer scanning heads, welding swing heads, etc., to meet different welding needs.
Post time: Aug-07-2024
