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Title: Geometrical-based characterisation of complex ti-6al-4v parts fabricated by selective electron beam melting
Authors: Kok, Yihong
Tan, Xipeng
Loh, Ngiap Hiang
Tor, Shu Beng
Chua, Chee Kai
Keywords: Electron beam melting
Additive manufacturing
Issue Date: 2016
Source: Kok, Y., Tan, X., Loh, N. H., Tor, S. B., & Chua, C. K. (2016). Geometrical-based characterisation of complex ti-6al-4v parts fabricated by selective electron beam melting. Proceedings of the 2nd International Conference on Progress in Additive Manufacturing (Pro-AM 2016), 385-390.
Abstract: In an additive manufactured metallic part, distinct and different microstructure and mechanical properties may exist on different areas due to differences in shape and location. Two parts, one with straight-finned structure and one with curvefinned structure, were fabricated by selective electron beam melting method using prealloyed Ti-6Al-4V powder. Microstructural characterization of these two parts that have varying fin thickness and shape were carried out in order to investigate the synthetically influence of build geometry and in-fill hatching strategy on selective electron beam melting. It was found that the β-spacing is larger in the curve-finned structure, leading to a lower micro-hardness as compared to the straight-finned structure. It suggests a slower cooling rate in the curve-finned structure due to the differences in build geometry and infill hatching strategy.
Rights: © 2016 by Pro-AM 2016 Organizers. Published by Research Publishing, Singapore
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Conference Papers
Pro-AM Conference Papers

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