Dual-focus laser welding technology is an advanced laser welding method that uses two focal points to improve the stability of the welding process and the quality of the weld. This technology has been studied and applied in many aspects:
2. Application research of dual-focus laser welding: In the field of aerospace, the National Laser Center (CSIR: National Laser Center) of the South African Research Center for Science and Industry conducted research on the laser welding technology of martensitic aging steel for missile engine casings and found that dual-beam laser welding had the best weld formation and good process repeatability.
3. The adaptability of dual-focus laser welding technology to specific materials: Pang Shengyong and others from Huazhong University of Science and Technology studied the stability of the keyhole and the flow inside the molten pool of aluminum alloy under the serial arrangement of laser dual-focus. The results show that dual-focus laser welding is more stable and controllable, and the fluctuation of the keyhole is significantly weaker than that of single laser welding.
4. Design and control technology of dual-focus laser welding head: There are studies dedicated to the development of new laser heads and improving the focusing characteristics of lasers to promote the widespread application of laser welding technology and the development of the aviation manufacturing industry.
5. The influence of dual-focus laser welding on weld formation and organization: Through the study of fiber laser welding of duplex stainless steel, it was found that the laser focus position affected the temperature field distribution of the joint, the upper part of the weld gradually narrowed and shortened, and the number of pores in the weld decreased significantly.
These studies show that dual-focus laser welding technology can effectively reduce welding defects, improve the stability of the welding process, and has broad application prospects.
Post time: Jul-26-2024
