China has successfully conducted the maiden flight of an ultra-lightweight miniature jet engine developed entirely through 3D printing, marking a significant milestone in aerospace propulsion technology.
The engine’s developer described the accomplishment as a breakthrough in both advanced propulsion design and manufacturing capabilities.
The test flight was carried out on Tuesday in the Inner Mongolia Autonomous Region, where the engine reached an altitude of 4,000 meters. According to the Aero Engine Corporation of China (AECC), the trial confirmed the engine’s reliability and stability under real-world flight conditions.
AECC noted that this engine is China’s first turbojet in the 160-kilogram thrust category to complete a successful flight using full-scale additive manufacturing and multi-disciplinary topology optimization techniques.
The corporation emphasized that the flight marks a key step forward in laying the technological groundwork for the development of next-generation aviation engines in China.
A major innovation of this project lies in the integration of advanced design strategies with 3D printing, addressing a crucial gap in the application of this technology for complete engine manufacturing in China.
The research team adopted a pioneering design method—multi-disciplinary topology optimization tailored for additive manufacturing—which, combined with integrated component design, significantly reduced engine weight and boosted performance metrics.
Before the flight, the engine had already passed extensive ground tests to validate its performance, efficiency, and service life, AECC added.
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