About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Additive Manufacturing Development of an Aerospike Breadboard Engine |
Author(s) |
Lukas Stepien, Samira Gruber, Alex Selbmann, Martin Probst, Tim Dorau, Sebastian Soller, Simon Hyde, Elena Lopez, Christian Bach, Frank Brueckner, Christoph Leyens |
On-Site Speaker (Planned) |
Frank Brueckner |
Abstract Scope |
Here we present the additive manufacturing process route and post processing of an 6 kN aerospike breadboard engine for kerosene and hydrogen peroxide propellants. The initial design was adapted for the additive manufacturing process and matured over several development stages. The recent design is a two part build-up, with a separated spike from the body to allow optimal powder removal. The aerospike is made of the nickel-base super alloy INCONELŪ 718, manufactured by laser powder bed fusion. Addi-tionally a thermal barrier coating made of Yttrium stabilized Zirconium oxide was applied by thermal spraying. An extensive material characterization campaign was conducted, including tensile tests at 700 °C and 900 °C, accompanied with a quality management along the process chain by nondestructive test-ing. Post processing includes heat treatment, milling of interfaces and welding of the spike to the shroud. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |