Chinese Engine Development

"China's Kede created their oblique angle 5 axis continuous CNC machine tool. They are used in high precision manufacturing, such as turbofan engine components."


According to the embedded CCTV2 video, it is 40% more efficient at machining the turbofan blades than foreign tools.

latenlazy said:

Yeah if you want to generate power you gotta rotate a generator which means you need a turbine.

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Not quite true. Even with a pulse detonation engine you can move a piston and use that to generate power.
You can convert linear to circular motion.

The main failure of the pulse detonation engines was always that you need to evacuate the tube before initiating another detonation. And the way to get more power is by increasing the frequency of detonations. So it is a catch-22. The rotating detonation engine does not have those limitations.

One big issue with detonation engines is that detonations are anything but silent. So it is unlikely you will see detonation engine technology used in civilian airports near populated areas.

ficker22 said:

Wasn't there a paper where basically just the combustor is replaced by RDE, but the rest remains like a gas turbine? So more efficient fuel burning + benefit of Turbine for eletricity.

Something along this line but from a chinese paper

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Yes there was. It was mentioned in this forum too.

Other than 3D printing, high-pressure die-casting is another technology which maybe the future. Gigacasting has been revolutionizing the automobile industry, I wonder whether casted parts are durable enough for aerospace applications.