Article In: cienciavitae
Fabrication of Metallic Liners for Composite Overwrapped Pressure Vessels
International Journal of Advanced Manufacturing Technology
— 2013
Key information
Authors:
Published in
July 2013
Abstract
This paper presents a new manufacturing process for producing metallic liners for composite overwrapped pressure vessels (COPVs) that are commonly utilized in spacecraft. The process combines an innovative tube forming operation, which is capable of shaping commercial tubes into seamless metallic liners in a single stroke of a press, with a sequence of post-forming operations comprising machining, joining by crimping and welding, and gas tightness testing by means of non-destructive examination. The presentation focuses on the manufacturing process as a whole, but tube forming in particular, and was written with the objective of providing details of the deformation mechanics, formability limits and tooling system of the tube forming operation. Different types of COPVs liners with 120 mm diameter are included in the presentation to illustrate the effectiveness and flexibility of the tube forming operation in meeting the specific requirements of aerospace applications concerning storage capacity and available shapes. The process running under steady-state production conditions is expected to reduce the overall production costs of COPVs by roughly one third.
Publication details
Authors in the community:
Luís Manuel Mendonça Alves
ist13976
Paulo António Firme Martins
ist12470
Title of the publication container
International Journal of Advanced Manufacturing Technology
First page or article number
2671
Last page
2680
Volume
67
Issue
9-12
Fields of Science and Technology (FOS)
mechanical-engineering - Mechanical engineering
Publication language (ISO code)
eng - English
Rights type:
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