The Value of Forged Shafts in the Aerospace Field

Forged shafts are a core component of spacecraft power transmission, and their high strength and lightweight characteristics are crucial for key systems such as rocket engines and satellite attitude control. For example, turbopump bearings need to withstand extreme low temperatures (such as the liquid oxygen environment at -183°C) and high temperatures (1600°C on the surface of the return capsule). The forging process optimizes the metal fiber structure, significantly improving its fatigue resistance and corrosion resistance.

In rocket engines, forged shafts (such as turbine shafts and compressor disks) are integrally formed through processes such as multi-directional die forging, reducing the number of parts and weight, and improving thrust and fuel efficiency. Satellite solar panel bearings rely on precision forging (micron-level accuracy) to ensure stable deployment and signal transmission.

With the development of reusable rockets, forged shafts need to withstand more than 20 reuses, posing extremely high technical barriers. Domestic companies such as Sinomach Precision Industry (with a market share of over 90%) have broken through relevant technologies, promoting cost reduction and efficiency improvement in commercial aerospace. Forged shafts will continue to support the upgrading of spacecraft towards high reliability and long life.