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.