Snell, R.M., Atkins, C., Schnetler, H. et al. (10 more authors) (2022) Towards understanding and eliminating defects in additively manufactured CubeSat mirrors. In: Navarro, R. and Geyl, R., (eds.) Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V. SPIE Astronomical Telescopes and Instrumentation, 17-23 Jul 2022, Montréal, Québec, Canada. Society of Photo-optical Instrumentation Engineers (SPIE) , 121880v. ISBN 9781510653573
Abstract
Fabricating mirrors using additive manufacturing (AM; 3D printing) is a promising yet under-researched production route. There are several issues that need to be better understood before AM can be fully adopted to fabricate mirror substrates. A significant obstacle to AM adoption is the presence of porosity and the influence that has on the resultant optical proprieties. Several batches of high-silicon aluminium (AlSi10Mg) samples were created to investigate the relationships laser parameters, laser paths and build orientations have with the porosity. The results showed that eliminating defects relies on a complex interaction of the process parameters and material properties, with the residual heating from the laser proving to be a significant factor. In addition, the use of a hot isostatic press is investigated and some full prototypes of the Cassegrain CubeSat were produced.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Editors: |
|
Copyright, Publisher and Additional Information: | © 2022 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, or modification of the contents of the publication are prohibited. |
Keywords: | Additive manufacturing; CubeSat; 3D printing; mirrors |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 01 Feb 2023 12:10 |
Last Modified: | 21 Jun 2023 10:07 |
Status: | Published |
Publisher: | Society of Photo-optical Instrumentation Engineers (SPIE) |
Refereed: | Yes |
Identification Number: | 10.1117/12.2629935 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:195810 |