Large thickness 7050-T7451 aluminum alloy plate welding technology breakthrough

The improvement of the reliability of weapons and equipment and the reduction of manufacturing costs can be achieved through the development and application of new and advanced technological processes and high-productivity equipment.

A 7050 aluminum alloy plate with 70mm thickness of the floor of a certain type of aircraft fuel tank currently adopts tungsten argon arc welding to complete the longitudinal weld connection. Due to the complicated welding process, the weld reliability is poor, and the yield is low, resulting in high manufacturing costs.

As the leader in the field of friction stir welding in China, Beijing Forster Technology Co., Ltd. conducts related research and development in the field of friction stir welding of large thickness aluminum alloy plates, and has successfully achieved the welding of single track 40mm, double track 70mm LF6/LF5 aluminum alloy plates. , And in the near future for market demand, in cooperation with the British Welding Research Institute, successfully achieved a single track 40mm, double 70mm 7050-T7451 aluminum alloy plate welding, friction stir welding in large thickness aluminum alloy plate made a major breakthrough.