3D printed load-bearing components help the Falcon fighter's first flight

It is reported that China's fighter aircraft has begun to use 3D printed titanium alloy parts. Shenyang University of Aeronautics and Astronautics 3D printed titanium alloy bearing members helped the Falcon 2.0's first flight to be a complete success.

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On December 23, 2016, Shenyang, the latest version of the latest four-generation stealth fighter J 31 improved-Falcon 2.0 successfully flew for the first time, marking the development of the project has made important progress. It is reported that Falcon 2.0 has carried out a series of major technical improvements to further enhance the maneuverability, stealth performance and mounting capabilities of the J 31. As the latest multi-role fighter that dominates the battlefield of the future, the J-31 has high survivability, and its multi-mission capability can perform powerful target detection and external information synthesis, which can achieve over-the-horizon multi-target attacks and large off-axis. Horn omnidirectional attack.

After this almost reborn technology upgrade, the J-31's technology is more mature and advanced. This type of fighter uses 3D printed parts on a large scale. At present, the more mature 4 processes of laser powder feeding and electronic wire feed have been applied, which has greatly inspired designers and innovatively designed a variety of new structures to make their structural weight. The coefficient is the lowest and the development speed is the fastest, so the designers nicknamed it "fan" aircraft.

Shenyang University of Aeronautics and Astronautics has long been committed to the research of 3D printing technology. It has worked closely with Shenyang Aircraft Design Institute, Shenfei Company and other units to work on the research and application of additive manufacturing technology. It has been awarded the National Natural Science Foundation of China Supported by scientific and technological projects, national key R & D programs, AVIC academic research, aviation science fund, and other key technologies, breaking through key technologies in 3D printing equipment, process, performance, etc., the key bearing structure of laser 3D printing titanium alloy developed to help the Hawk Eagle 2.0 successfully success.

The following technological breakthroughs have been achieved:

(1) Independently developed serialized laser 3D printing equipment

Shenyang University of Aeronautics and Astronautics fully mastered the design, manufacture and system integration of laser coaxial powder feeding 3D printing process equipment, innovatively proposed flexible and rigid cabin structure forms and dynamic inert gas protection methods, and authorized 4 related invention patents for equipment. Cooperated with Nanjing Zhongke Yuchen to develop serial laser additive manufacturing equipment.

Editor in charge: Liu Qingqing

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