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New models for energy beam machining enable accurate generation of freeforms

Axinte, Dragos A.; Billingham, John; Guillerna, A. Bilbao

Authors

Dragos A. Axinte

John Billingham john.billingham@nottingham.ac.uk

A. Bilbao Guillerna



Abstract

We demonstrate that, despite differences in their nature, many energy beam controlled-depth machining processes (e.g. waterjet, pulsed laser, focused ion beam) can be modelled using the same mathematical framework – a partial differential evolution equation that requires only simple calibrations to capture the physics of each process. The inverse problem can be solved efficiently through numerical solution of the adjoint problem, and leads to beam paths that generate prescribed three-dimensional features with minimal error. The viability of this modelling approach has been demonstrated by generating accurate freeform surfaces using three processes that operate at very different length scales and with different physical principles for material removal: waterjet, pulsed laser and focused ion beam machining. Our approach can be used to accurately machine materials that are hard to process by other means for scalable applications in a wide variety of industries.

Journal Article Type Article
Journal Science Advances
Electronic ISSN 2375-2548
Publisher American Association for the Advancement of Science
Peer Reviewed Peer Reviewed
Volume 3
Issue 9
Article Number e1701201
APA6 Citation Axinte, D. A., Billingham, J., & Guillerna, A. B. (in press). New models for energy beam machining enable accurate generation of freeforms. Science Advances, 3(9), https://doi.org/10.1126/sciadv.1701201
DOI https://doi.org/10.1126/sciadv.1701201
Publisher URL http://advances.sciencemag.org/content/3/9/e1701201
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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ScienceAdvancesAccepted.pdf (1.6 Mb)
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0


e1701201.full.pdf (2.2 Mb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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