Aluminum alloy plays an important role in aviation forgings, and its main role has the following aspects: Light weight: Aluminum alloy has a lighter weight than traditional steel, and is an ideal lightweight material choice. In the aviation industry, reducing the weight of aircraft is essential to improve fuel efficiency, reduce energy consumption and increase load capacity. Therefore, the use of aluminum alloy forging aviation parts can effectively reduce the structural load of aircraft and improve flight performance. Good strength and stiffness: Although aluminum alloy has a lower density than steel, its excellent mechanical properties make it have good strength and stiffness. Through reasonable design and application of forging technology, enough strength and stiffness can be obtained to meet the requirements of aviation forgings. Good corrosion resistance: Aluminum alloy has good corrosion resistance, especially for oxidative corrosion has a high resistance. This is very important for aviation forgings used in harsh aviation environments to extend their service life and maintain good appearance quality. Good machinability: Aluminum alloy has good malleability and machinability, which is suitable for forging complex shapes. This allows designers to work out a more optimized part design according to specific needs, and through the forging process to produce complex shape and reasonable structure of aviation forgings. Excellent thermal conductivity: Aluminum alloy has excellent heat conductivity, which can conduct heat from the workpiece surface to the surrounding environment more quickly. This is important in the high temperature operating environment of the aircraft, helping to reduce thermal stress and improve the thermal stability of the parts. In summary, the application of aluminum alloy in aviation forgings plays an important role, which can meet the needs of aircraft for light weight, strength, corrosion resistance and processing performance. At the same time, aluminum alloys can also be further improved by alloy design and heat treatment.