Science, Space and Technology News 2023
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The RAMFIRE nozzles complete hot fire testing at Marshall’s East test area using liquid oxygen and liquid hydrogen , as well as liquid oxygen and liquid methane fuel configurations. As hot combustion gasses approach 6000 degrees, icicles are forming on the outside of the engine nozzle. Credit: NASA’s Marshall Space Flight Center
At the RPM Innovation facility in Rapid City, South Dakota, manufacturing for a large-scale aerospike demonstration nozzle with integral channels is underway. The laser powder directed energy deposition process creates a melt pool using a laser and blows powder into the melt pool to deposit material layer by layer. NASA engineers will use the nozzle as a proof of concept to inform future component designs.
“Industry partnerships with specialty manufacturing vendors aid in advancing the supply base and help make additive manufacturing more accessible for NASA missions and the broader commercial and aerospace industry,” Paul Gradl, RAMFIRE principal investigator at NASA Marshall, said. “Mass is critical for NASA’s future deep space missions,” said John Vickers, principal technologist for STMD advanced manufacturing. “Projects like this mature additive manufacturing along with advanced materials, and will help evolve new propulsion systems, in-space manufacturing, and infrastructure needed for NASA’s ambitious missions to the Moon, Mars, and beyond.”
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