Impellers are the most important components of aero-engines, gas turbines, compressors, and other fluid machinery with difficult-to-machine geometries, diverse curved surfaces, and extremely high machining requirements.

The traditional contact measurement methods cannot compete with the highly sophisticated free-form surfaces, minute gaps, and large curvature shapes of impellers, incapable of meeting the inspection requirements that emphasize high accuracy and efficiency.

Impellers are one of the important core components in aero-engines, chemical equipment, and power equipment. Their complex three-dimensional geometric shape and application of high-performance materials impose extremely high technical requirements on the manufacturing process.

With the inductive growth of smart manufacturing technologies, traditional modes of impeller manufacturing are caught up in unprecedented pressure to evolve.

Impeller parts impose extremely demanding requirements on tool types, geometry parameters, and machining performance since they have complex free-form surfaces, limited machining space,

Rational tool paths, in addition to directly affecting machining efficiency and surface quality, are related to tool life and machine tool stability.

Superalloys are vastly utilized for the production of aero-engine impellers and energy equipment due to their high temperature strength and anti-oxidation capabilities.

Titanium alloys possess extensive applications in the manufacture of aero-engine, sea equipment, and compressor impellers of high performance due to their high specific strength, corrosion resistance, and high-temperature properties.

Together with the rapid development of high-end manufacturing, impellers, as important components in various fluid machinery, feature complex structures and high precision requirements, posing enormous challenges to machining processes.

Since the machining accuracy of flow channels of an impeller provides the basic basis for energy transmission and transformation in fluid machinery, equipment efficiency, stability,

Superalloys are widely used in the manufacturing of aero-engine impellers, gas turbines, and nuclear industry parts in harsh environments due to their excellent thermal strength, creep resistance, and oxidation resistance.

Titanium alloys have been widely used in aerospace, marine, and high-precision machining impeller components due to their high specific strength, corrosion resistance, and high-temperature performance.

As a key component of aero-engines, aviation impellers possess complex structures and stringent material performance needs, which create gigantic challenges in production.

As a key component in rotary machinery, impellers are usually subjected to severe working conditions such as high temperature, high speed, corrosion, and erosion, which impose extremely high requirements on surface performance.

With increasing design iteration speed and verification efficiency of complex impeller components in high-tech industries such as aviation,

Due to the continuing advances in aerospace, energy power, and advanced manufacturing high-performance and lightweight technologies, composite materials find more applications as an alternative to traditional metal materials and widely utilized in high-speed rotating key components such as impellers.

As a component of great importance for rotating equipment, manufacturing quality of impellers has direct influences on machinery performance efficiency and safety level.

In seawater pumps, desalination plants, offshore platforms, and seawater cooling systems, for example, impellers are long-term exposed to extremely corrosive media with high chloride ion content. The materials’ strength and corrosion resistance directly affect the stability of the overall system and operation and maintenance costs.