According to a report on the Forbes website on May 13, GE researchers recently built a backpack-sized miniature jet engine using 3D printed parts. The engine can be ignited and can reach 33,000 rpm.
The engine has been manufactured for several years, and the thin metal powder layer is melted by 3D printing technology and accumulated in layers to form various parts of the engine. When all the parts are manufactured, they can be assembled into one engine. The final product is about 8 inches high and 1 foot long. Once the engine is assembled, it is placed in a dedicated jet engine test chamber for ignition testing.
This is not only a new product made by General Electric with 3D technology, but also the extent to which 3D printing is used in the aerospace industry. Terry Wohlers, a 3D printing technology analyst at Waller Accessories, points out that it demonstrates the possibilities of additive manufacturing and 3D printing technology, especially in demanding applications.
Over the next few months and years, GE Aviation will use the additive manufacturing process to produce tens of thousands of fuel nozzles for its next-generation LEAP engine. Aircraft manufacturer Airbus has also begun manufacturing synthetic metal additive manufacturing components that have been used on the new A350 passenger aircraft.
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