Earlier this year, we saw the first example of a 3D printing jet engine. Now GE has announced the first 3D printed commercial jet engine parts that have passed the FAA certification. This fist-sized compressor inlet temperature sensor T25 is manufactured by GE Aviation and will be used to retrofit 400 Boeing 777 GE90-94B jet engines.
The T25 housing is located at the entrance to the high-pressure compressor and protects electronic devices such as sensors from low-temperature and impact air currents. Here, GE does not use conventional manufacturing methods such as casting or milling. Instead, it uses 3D printers and CAD files, but it is usually hot-melted. Unlike plastics, the T25 housing is printed with fine cobalt-chromium powder. This method has many advantages. In addition to its lighter weight, the extremely complex shapes can be made in one single piece. The design is faster than the finished product and the waste generated is much lower than the conventional method.
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