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.
|Title of host publication||25th Solid Freeform Symposium|
|Publisher||University of Texas at Austin|
|Number of pages||12|
|Publication status||Published - 2014|
|Event||25th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference - Austin, United States|
Duration: 4 Aug 2014 → 6 Aug 2014
Conference number: 25
|Conference||25th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference|
|Period||4/08/14 → 6/08/14|
Bibliographical noteManuscripts for this conference are available for free download at the Lab for Freeform Fabrication website:
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.