About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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Presentation Title |
Single-point Laser Scanning Strategy for the SLM Fabrication of Ti-6AL-4V Micro-strut Lattices: Strut Size Dependent Mechanical Properties |
Author(s) |
Conor Okeeffe, D J Kelly |
On-Site Speaker (Planned) |
Conor Okeeffe |
Abstract Scope |
Porous metallic scaffolds fabricated by AM offer benefits that have been identified as advantageous over their parent bulk material. The mechanical properties of the individual struts making up these lattices can be significantly different from the bulk material. For the traditional 'contour-and-hatch' laser scanning strategy, these changes have been related to features inherited from the fabrication process.
However, this work has not been extended to the ‘single-point’ based strategy; which has been suggested as more suitable for the fabrication of such small feature-size lattice structures. In this approach, strut thickness is determined by melt pool thickness defined at a single exposure point for each build layer; offering the potential for a smaller minimum feature size.
Here we are seeking to 1.) define this strategy for fabrication of a range of strut sizes and 2.) characterize changes in mechanical properties of the induvial struts across this range. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Titanium, Mechanical Properties |