Aero-engine is the source of power for aircraft. Since its introduction in 1903, more than a hundred years ago, aero-engines have experienced two major development periods. The piston engine ruled from 1903 to 1945, and the jet engine era from 1945 to now. Ramjet engines and detonation engines will also appear in the future. Aero-engine, as the core component of aircraft, will affect the development of aircraft to a great extent.

The development level of aero-engine industry is the concentrated embodiment of a country's industrial base, scientific and technological level and comprehensive national strength, as well as an important strategic guarantee for national security and great power status. Aero engine has the characteristics of long development cycle, high technical difficulty and high cost of capital, so there is still a long way to go for the development of aero engine industry.

This structure is an engine component reduction part, 30*18*18cm. SLM technology is used to manufacture the engine in segments, realizing the visualization of the complex internal structure of the engine.