In aerospace and aviation industries, aluminum alloy die castings occupy a very important position because aluminum alloy die castings have a lightweight structure, high strength, and low cost. At the same time, this material has better air tightness and shape complexity, as well as better ductility and yield strength. Therefore, application of aluminum alloy die castings in aerospace industry will continue to be widely used and valued with development of aerospace industry.

 

Main reasons why aluminum alloy die castings are widely used in aerospace industry are as follows:

Aluminum alloy is a lightweight and high-strength metal material. Its specific gravity is only about one-third that of steel, but its specific strength is about 35% higher than ordinary carbon steel. It has excellent mechanical properties such as tensile strength and yield strength. Therefore, use of aluminum alloy can significantly reduce the overall weight of aircraft, improve load capacity and flight performance.

 

Aluminum alloy has good corrosion resistance and good resistance to most acids and alkalis, which is very important for spacecraft that operate in the air for a long time. For example, aluminum alloy parts can be used to manufacture shells of aircraft, as well as brackets and casings of various aviation instruments.

 

Aluminum alloy has excellent thermal conductivity, which allows it to be used to manufacture parts that require high heat transfer efficiency, such as heat sinks, coolers and heat transfer tubes in aerospace engines.

 

Aluminum alloy has good plasticity and good machining properties, which makes it easy to manufacture parts of various shapes and sizes. In addition, aluminum alloys can be made using a variety of processing methods, such as extrusion, drawing, cold drawing, welding, casting, etc.

 

Aluminum alloy die castings can be seen in following places:

In aeroengines, aluminum alloy die castings are widely used to manufacture fuselage and engine parts. For example, turbine disk is a critical component that must be high-strength and lightweight because it needs to withstand extremely high temperatures and pressures. Aluminum alloy die casting is an ideal production process for producing high-quality, complex-shaped turbine disks.

 

Aluminum alloy die castings are also widely used in manufacturing of aircraft fuselages and structural components. Due to its lightweight properties, aluminum alloy die castings are ideal for manufacturing aircraft. For example, 44% of weight of Airbus's A380 passenger aircraft fuselage is composed of aluminum alloy.

 

Aluminum alloy die castings are also widely used in manufacture of aerospace satellite and rocket parts. For example, outer shell of a satellite is usually made of high-strength aluminum alloy die-casting. In addition, thrusters and navigation equipment also require use of aluminum alloy die castings to ensure their lightweight and durability.

 

Overall, benefits of applying aluminum alloy die-casting products in aerospace industry are obvious. Their lightweight and high strength can reduce weight of the entire aircraft, improve load capacity and fuel efficiency, thereby achieving better performance and economic benefits.