Analysis of the porous structures from laser powder bed fusion additive manufacturing
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AbstractOpen and closed porous structures with lattice and honeycomb geometry can be built using laser powder bed fusion additive manufacturing processes. The porous structures can be used to tailor the mechanical properties of a component or provide other functionality, such as for bone ingrowth in medical implants. Porous structures were created and analysed in this paper both physically and using finite element modelling. It was found that the accuracy of the built parts was reasonable and within the manufacturing processes general tolerance of +/- 50 μm. However, it was noticeable that the corners of the square shape pores were naturally filleted by the manufacturing process. The finite element model was developed using ANSYS software, stress concentrations were observed in the porous structures under loading. In addition to this, fragments of the material were present on the internal surfaces of the pores, which were formed from partially melted powder particles.
CitationWang, C.J., Hazlehurst, K., Arjunan, A. and Shen, L. (2021) Analysis of the porous structures from laser powder bed fusion additive manufacturing, in Shafik, M. and Case, K. (eds.) Advances in Manufacturing Technology XXXIV. Advances in Manufacturing Technology XXXIV. Proceedings of the 18th International Conference on Manufacturing Research, incorporating the 35th National Conference on Manufacturing Research, 7–10 September 2021, University of Derby, Derby, UK.
Description© 2021 The Authors. Published by IOS Press in Advances in Manufacturing Technology XXXIV. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://ebooks.iospress.nl/doi/10.3233/ATDE210019
Series/Report no.Advances in Transdisciplinary Engineering
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc/4.0/