A Comparative Finite Element Study of Cubic Unit Cells for Selective Laser Melting

Adedeji Aremu, Ian Maskery, Chris Tuck, Ian Ashcroft, Ricky Wildman, Richard Hague

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

17 Citations (Scopus)

Abstract

Selective laser melting (SLM) enables the utilization of complicated lattice structures in metallic components. To exploit this capability, it is important to understand the structural properties of these lattices. Topological variations in lattices are diverse, however, only a few are suitable for SLM since some lattices require supports during manufacture while others self-support. Difficulties associated with the removal of these supports and their detrimental effects on surface finish makes the latter group better suited for SLM. In this work, we investigate the structural properties of some self-supporting unit cells via a finite element study and show that the performance of a lattice structure is largely dependent on the topology of the unit cell. Variants of the gyroid and face centred cubic unit cells performed better than body centred cubic cells. This was also observed when lattices, made of repeating unit cells were compared.
Original languageEnglish
Title of host publication25th Solid Freeform Symposium
PublisherUniversity of Texas at Austin
Pages1238-1249
Number of pages12
Publication statusPublished - 2014
Externally publishedYes
Event25th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference - Austin, United States
Duration: 4 Aug 20146 Aug 2014
Conference number: 25

Publication series

Name
ISSN (Electronic)1053-2153

Conference

Conference25th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference
CountryUnited States
CityAustin
Period4/08/146/08/14

Bibliographical note

Manuscripts for this conference are available for free download at the Lab for Freeform Fabrication website:
http://utwired.engr.utexas.edu/lff/symposium/proceedingsArchive/toc.cfm.

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  • Cite this

    Aremu, A., Maskery, I., Tuck, C., Ashcroft, I., Wildman, R., & Hague, R. (2014). A Comparative Finite Element Study of Cubic Unit Cells for Selective Laser Melting. In 25th Solid Freeform Symposium (pp. 1238-1249). University of Texas at Austin.