Everyone may have heard of friction stir welding technology. This technology was officially launched in 1991. As soon as it appeared, it attracted the attention of the world. This welding technology is a relatively mature process and is used for some high-end welding, aerospace structural parts, The manufacturing industry has basically used this welding technology. After the emergence of the new friction stir welding friction technology, several subsidiary technologies have appeared, which are used in many fields. There are several representative ones. , It also has some innovations, such as self-adaptive friction stir welding technology between double bamboos, dynamic control low stress non-deformation stir welding technology, compound heat source stir welding technology, and double-head friction stir welding technology.

It is widely used in various welding technologies, especially the overall structural parts of aircraft, as well as the research on the law of friction, stress and deformation. Basically, this welding technology is used for the storage box of the welding seam, which greatly reduces the heat loss of the welding seam and improves the thermal efficiency. Friction stir welding is very suitable for the current aerospace field, some aluminum alloy profiles. , Often requires better welding technology, strength coefficient, in the welding process, in order to avoid this defect, it is also necessary to meet the requirements of material processing, welding technology can learn from each other.

Through friction between the welding head and the workpiece, more heat is generated. In the process, various deficiencies need to be overcome, such as resistance heat, plasma arc, and induction heat to avoid various defects. On the laser and auxiliary system, after rotating friction, a relatively firm joint is finally formed, and the whole welding process is completed. During this process, the loss of the stirring head can also be reduced, and the welding efficiency can be improved. Friction stir welding, to a certain extent, can also control and measurement, in the whole welding process, the ion arc is used as the auxiliary heat source, and the welding is carried out by the energy of preheating, the workpieces can be closely contacted together, and the auxiliary heat is carried out by the friction heat bucket. This technology is very good. Its welding field reduces the wear of the mixing head, improves the life, and indirectly increases the efficiency. It is a new innovation in the aerospace field, and the field will be more extensive in the future.