At the end of June, my country successfully launched the 55th navigation satellite of the Beidou system. So far, the deployment of the Beidou-3 global satellite navigation system has been completed, and global navigation coverage has been achieved, becoming a satellite navigation system that keeps pace with the US GPS.
In fact, through the efforts of several generations, China has already become a major aerospace country. The Shenzhou series of manned spacecraft, the Chang'e series of moon explorations, and the Tiangong series of space laboratories, also include domestic passenger jets, J-20 fighters, and amphibians. Achievements such as these have attracted worldwide attention.
The advanced modern aerospace industry is inseparable from advanced manufacturing processes and technical support. Laser technology is indispensable in the realization of high-quality and intelligent welding processes in aerospace, especially in the three-dimensional robot laser welding technology. So, what are the advantages of using laser welding technology in aerospace?
Advantages of 3D laser welding
Lightweight body: As the current high-tech, laser welding technology adopts non-contact processing without adding welding wire, while the traditional connection method is tightened by screws, and some requires welding wire, which will undoubtedly increase the weight of the whole machine. And traditional methods also have many constraints on connecting lightweight new materials. In contrast, laser welding achieves a leap forward in process in terms of connection robustness, seamlessness, precision and cleanliness.
Welding intelligence: Combining a new generation of fiber laser welding technology and various six-axis or seven-axis robot technology, it realizes high-speed and high-precision welding in three-dimensional space. It can realize the welding of complex workpieces and realize one-time welding molding to a greater extent; at the same time, it is equipped with an intelligent tracking system for welding seams, which can greatly improve the accuracy of welding seam positioning and shorten programming time; equipped with an automatic production module, which can realize welding automation In production operations, the advantages of laser welding speed are maximized to further improve production efficiency.
Stabilization of quality: welding parameters such as welding current, voltage, welding speed and dry elongation have a decisive effect on the welding results. When using three-dimensional robot welding, the welding parameters of each welding seam are constant, and the quality of the welding seam is less affected by human factors, which reduces the requirements for workers' operation technology, so the welding quality is stable. While the traditional manual welding method, the welding speed and the dry extension of the welding wire are all changed, it is difficult to achieve uniformity of quality.
3D robot laser welding of aircraft fuselage
Three-dimensional robot laser welding of aircraft tail siding
Recommended equipment-3D robot fiber laser welding machine (HyRobot W20)
◆ Six-axis linkage welding of three-dimensional parts;
◆ Non-contact welding seam tracking system;
◆ Multi-station collaborative work;
◆ Handheld terminal controls the robot.
It is mainly used for welding the same materials of aluminum, carbon steel, stainless steel, copper and other metal sheets, and mixed welding of aluminum, copper, stainless steel and other materials.
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