Printed pressure housings for underwater applications

In order to investigate the capability of additive manufacturing technologies to build pressure housings, hemispheres made of titanium and ceramic with a nominal outer diameter of 70mm were built on 3D printer systems, evaluated, and tested in a pressure tank. Titanium hemispheres expected to withst...

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Bibliographic Details
Published in:Ocean engineering 2016-02, Vol.113, p.57-63
Main Authors: Breddermann, K., Drescher, P., Polzin, C., Seitz, H., Paschen, M.
Format: Article
Language:English
Subjects:
3D printing
Additive manufacturing
Ceramic
Ceramics
Construction
External pressure
Hemispheres
Housings
Marine
Ocean engineering
Pressure housings
Tanks
Titanium
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Summary:In order to investigate the capability of additive manufacturing technologies to build pressure housings, hemispheres made of titanium and ceramic with a nominal outer diameter of 70mm were built on 3D printer systems, evaluated, and tested in a pressure tank. Titanium hemispheres expected to withstand an external pressure of 10MPa started buckling at 6MPa. A stiffened titanium hemisphere which was expected to withstand 24MPa collapsed at 30MPa. A ceramic hemisphere could not be tested to collapse since the measurement technique was not rated to withstand an external pressure above 30MPa. •Pressure housings for underwater applications were built in an additive manufacturing process from titanium and ceramic.•The dimensional accuracy and surface finish was evaluated.•The housings were tested in a pressure vessel.•The housings show promising performance and have a satisfying weight to displacement ratio.
ISSN:0029-8018
1873-5258
DOI:10.1016/j.oceaneng.2015.12.033