| Autor: |
Reneau, James L., Jr. |
| Přispěvatelé: |
Gunduz, Ibrahim E., Tsolis, Kristen, Mechanical and Aerospace Engineering (MAE) |
| Rok vydání: |
2021 |
| Předmět: |
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| Popis: |
Nozzle-based additive manufacturing (AM) methods typically require a trade-off between print resolution and mass deposition rates due to a set nozzle size. This requires longer build times for large, highly detailed parts and it would be beneficial to be able to change the resolution on the fly for naval applications. Having a print head that can print at both high resolution and high speed has the possibility to revolutionize the manufacturing industry in general. The objective of this thesis is to test a new rotating printer head with a nozzle that has a slit opening in a fused filament fabrication 3D printer for in-situ adjustable print resolution. The quantification of the viability of the print head is accomplished through the 3D printing of parts with continuous rotation in which the printer is able to use a variety of nozzle diameters. Control parts will also then be designed and printed in order to compare both the resolution and print speed. Simple shapes printed with the system show that the resolution can be varied between the two slit dimensions and the gaps between printed tracks is reduced compared to other methods, improving part strength. The results show that it is practical to fabricate large but complex and detailed parts using this approach, as opposed to commercial systems that are limited between balancing resolution and speed. Ensign, United States Navy Approved for public release; distribution is unlimited. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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