Matches in SemOpenAlex for { <https://semopenalex.org/work/W3166968829> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W3166968829 abstract "Additive manufacturing (AM) is being investigated at NASA and across much of the rocket propulsion industry as an alternate fabrication technique to create complex geometries for liquid engine components that offers schedule and cost saving opportunities. The geometries that can be created using AM offer a significant advantage over traditional techniques. Internal complexities, such as internal coolant channels for combustion chambers and nozzles that would typically require several operations to manufacture traditionally can be fabricated in one process. Additionally, the coolant channels are closed out as a part of the AM build process, eliminating the complexities of a traditional process like brazing or plating. The primary additive manufacturing technique that has been evaluated is powder bed fusion (PBF), or selective laser melting (SLM), but there is a scale limitation for this technique. There are several alternate additive manufacturing techniques that are being investigated for large-scale nozzles and chambers including directed energy deposition (DED) processes. A significant advantage of the DED processes is the ability to adapt to a robotic or gantry CNC system with a localized purge or purge chamber, allowing unlimited build volume. This paper will discuss the development and hot-fire testing of channel-cooled nozzles fabricated utilizing one form of DED called blown powder deposition. This initial development work using blown powder DED is being explored to form the entire channel wall nozzle with integral coolant channels within a single AM build. Much of this development is focused on the design and DED-fabrication of complex and thin-walled features and on characterization of the materials properties produced with this techniques in order to evolve this process. Subscale nozzles were fabricated using this DED technique and hot-fire tested in Liquid Oxygen/Hydrogen (LOX/GH2) and LOX/Kerosene (LOX/RP-1) environments accumulating significant development time and cycles. The initial materials that were evaluated during this testing were high-strength nickel-based Inconel 625 and JBK-75. Further process development is being completed to increase the scale of this technology for large-scale nozzles. This paper will summarize the general design considerations for DED, specific channel-cooled nozzle design, manufacturing process development, property development, initial hot-fire testing and future developments to mature this technology for regeneratively-cooled nozzles. An overview of future development at NASA will also be discussed." @default.
- W3166968829 created "2021-06-22" @default.
- W3166968829 creator A5025318668 @default.
- W3166968829 creator A5062071428 @default.
- W3166968829 creator A5073324537 @default.
- W3166968829 date "2019-08-16" @default.
- W3166968829 modified "2023-09-29" @default.
- W3166968829 title "Additive Manufacturing and Hot-fire Testing of Liquid Rocket Channel Wall Nozzles Using Blown Powder Directed Energy Deposition Inconel 625 and JBK-75 Alloys" @default.
- W3166968829 cites W2033213095 @default.
- W3166968829 cites W2051096053 @default.
- W3166968829 cites W2054301403 @default.
- W3166968829 cites W2063174953 @default.
- W3166968829 cites W2085016338 @default.
- W3166968829 cites W2132176478 @default.
- W3166968829 cites W2324464036 @default.
- W3166968829 cites W2511013388 @default.
- W3166968829 cites W2560271296 @default.
- W3166968829 cites W2588134529 @default.
- W3166968829 cites W2762367303 @default.
- W3166968829 cites W2793998667 @default.
- W3166968829 cites W2798109813 @default.
- W3166968829 cites W2886058099 @default.
- W3166968829 cites W2911152937 @default.
- W3166968829 cites W3168672149 @default.
- W3166968829 cites W4255033525 @default.
- W3166968829 doi "https://doi.org/10.2514/6.2019-4362" @default.
- W3166968829 hasPublicationYear "2019" @default.
- W3166968829 type Work @default.
- W3166968829 sameAs 3166968829 @default.
- W3166968829 citedByCount "12" @default.
- W3166968829 countsByYear W31669688292020 @default.
- W3166968829 countsByYear W31669688292021 @default.
- W3166968829 countsByYear W31669688292022 @default.
- W3166968829 countsByYear W31669688292023 @default.
- W3166968829 crossrefType "proceedings-article" @default.
- W3166968829 hasAuthorship W3166968829A5025318668 @default.
- W3166968829 hasAuthorship W3166968829A5062071428 @default.
- W3166968829 hasAuthorship W3166968829A5073324537 @default.
- W3166968829 hasConcept C116915560 @default.
- W3166968829 hasConcept C119599485 @default.
- W3166968829 hasConcept C127162648 @default.
- W3166968829 hasConcept C127313418 @default.
- W3166968829 hasConcept C127413603 @default.
- W3166968829 hasConcept C146978453 @default.
- W3166968829 hasConcept C151730666 @default.
- W3166968829 hasConcept C159985019 @default.
- W3166968829 hasConcept C187878255 @default.
- W3166968829 hasConcept C191897082 @default.
- W3166968829 hasConcept C192562407 @default.
- W3166968829 hasConcept C2776020425 @default.
- W3166968829 hasConcept C2778703219 @default.
- W3166968829 hasConcept C2780026712 @default.
- W3166968829 hasConcept C2816523 @default.
- W3166968829 hasConcept C56200935 @default.
- W3166968829 hasConcept C64297162 @default.
- W3166968829 hasConcept C78519656 @default.
- W3166968829 hasConceptScore W3166968829C116915560 @default.
- W3166968829 hasConceptScore W3166968829C119599485 @default.
- W3166968829 hasConceptScore W3166968829C127162648 @default.
- W3166968829 hasConceptScore W3166968829C127313418 @default.
- W3166968829 hasConceptScore W3166968829C127413603 @default.
- W3166968829 hasConceptScore W3166968829C146978453 @default.
- W3166968829 hasConceptScore W3166968829C151730666 @default.
- W3166968829 hasConceptScore W3166968829C159985019 @default.
- W3166968829 hasConceptScore W3166968829C187878255 @default.
- W3166968829 hasConceptScore W3166968829C191897082 @default.
- W3166968829 hasConceptScore W3166968829C192562407 @default.
- W3166968829 hasConceptScore W3166968829C2776020425 @default.
- W3166968829 hasConceptScore W3166968829C2778703219 @default.
- W3166968829 hasConceptScore W3166968829C2780026712 @default.
- W3166968829 hasConceptScore W3166968829C2816523 @default.
- W3166968829 hasConceptScore W3166968829C56200935 @default.
- W3166968829 hasConceptScore W3166968829C64297162 @default.
- W3166968829 hasConceptScore W3166968829C78519656 @default.
- W3166968829 hasLocation W31669688291 @default.
- W3166968829 hasOpenAccess W3166968829 @default.
- W3166968829 hasPrimaryLocation W31669688291 @default.
- W3166968829 hasRelatedWork W2004318109 @default.
- W3166968829 hasRelatedWork W2522559206 @default.
- W3166968829 hasRelatedWork W2571490387 @default.
- W3166968829 hasRelatedWork W2615833875 @default.
- W3166968829 hasRelatedWork W2737603781 @default.
- W3166968829 hasRelatedWork W3019256760 @default.
- W3166968829 hasRelatedWork W3092659052 @default.
- W3166968829 hasRelatedWork W3130020231 @default.
- W3166968829 hasRelatedWork W4295680708 @default.
- W3166968829 hasRelatedWork W4386132867 @default.
- W3166968829 isParatext "false" @default.
- W3166968829 isRetracted "false" @default.
- W3166968829 magId "3166968829" @default.
- W3166968829 workType "article" @default.