Residual stresses in selective laser melted components of different geometries
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Date
2016-07-03
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Publisher
Materials Research Forum LLC
Abstract
As an emerging Additive Manufacturing (AM) technique, Selective Laser Melting (SLM) has found a promising application in biomedical field due to its advantages in fabricating Ti-6Al-4V components with specific and customised geometries. It has been reported that accumulated residual stress as a result of the high heating and cooling rates during SLM and the topological design of the components can largely influence the mechanical and functional properties of the fabricated components. In this study three notched samples were produced by SLM manufacturing. The samples were built using the same laser melting conditions on the same base size. The notches ranged in angle from 60° to 120°. Residual stresses in the three notched samples were analysed using the state-of-the-art neutron residual strain measurement instrument, Kowari, at the Australian
Nuclear Science and Technology Organisation. A combination of gauge volumes were utilised to obtain high precision measurements at the notch tips and general measurements around the tips. This paper reports on the manufacture and measurement of differing residual stresses in the three SLM fabricated notches. © The Authors
Description
Keywords
Residual stresses, Titanium, Scattering, Melting, Fabrication, Manufacturing, Measuring methods
Citation
Reid, M., Sercombe, T., Paradowska, A., & Li. X. (2016). Residual stresses in selective laser melted components of different geometries. Paper presented to the 10th International Conference on Residual Stresses (ICRS 10), Sydney, Australia, 3-7 July, 2016. In T. M. Holden, T. M., O. Muránsky, & L. Edwards (Eds) (2017). Residual stresses ICRS-10. Millersville, USA: Materials Research Proceedings, Vol. 2, 383-388. doi:10.21741/9781945291173-65