On September 24, 2026, the University of Stuttgart and the German Aerospace Center (DLR) jointly announced the launch of the AMFlexInj project (Additively Manufactured Micro-Injection Concept, July 1, 2026 – June 30, 2029), funded with €1.5 million from the German Federal Ministry of Research, Technology and Space (BMFTR). The project uses metal powder bed fusion (PBF) 3D printing to produce gas turbine injectors compatible with multiple fuels such as hydrogen, natural gas, methanol, e-fuels, and aviation kerosene. Technical core: The airblast atomization principle from aero engines is drastically scaled down—liquid fuel is spread into a thin film through printed microchannels (groove width only 0.05 mm) and torn into droplets smaller than 0.025 mm in diameter by high-speed airflow, enabling rapid evaporation and uniform mixing; gaseous fuels like hydrogen are injected directly. The design works even with the surface roughness inherent to 3D printing, overcoming the previous challenge that injectors were rarely 3D-printed due to rough surfaces hindering precise metering. Project background is Germany's energy transition: In 2026, Germany tendered 9 GW of long-term guaranteed capacity (the first round on September 8 was oversubscribed), and winning gas-fired power plants must be convertible to pure hydrogen operation and climate-neutral by 2045. The team comprises the University of Stuttgart's Institute of Aerospace Combustion Technology (IVLR), Institute for Machine Tools (IFW), and DLR's Institute of Combustion Technology. Prototypes will subsequently be tested with various fuels under near-real operating conditions. Value for powder buyers: ① Hydrogen gas turbine components impose new requirements on the hydrogen embrittlement resistance of high-temperature alloy powders (nickel-based), so watch for certification progress of relevant grades; ② Printing 0.05 mm-scale microchannels places stringent demands on fine particle size and flowability of powders, creating opportunities for fine powder classification products; ③ Europe's energy transition opens a long-term market for AM gas turbine parts, allowing early engagement with the project's supply chain.