Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88664
Title: Influences of scanning speed on selective laser melting : a computational study
Authors: Tang, Chao
Wong, Chee How
Keywords: Selective Laser Melting
Heat Transfer
DRNTU::Engineering::Mechanical engineering::Prototyping
Issue Date: 2018
Source: Tang, C., & Wong, C. H. (2018). Influences of scanning speed on selective laser melting : a computational study. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 607-612. doi:10.25341/D4959Q
Abstract: A computational fluid dynamics model based on real physics was developed to investigate the single track formation of selective laser melting. Through simulation works, it is revealed that the wetting behaviour between melted powders and substrate is closely related with the scanning speed of laser beam, thereby affecting the development of interlayer defects and geometry of the solidified track. In addition, a deep and narrow keyhole would be generated with low scanning speed, which contributes to the formation of keyhole voids underneath the solidified track. The simulation results are consistent with experimental observations in literature. Hence the model is helpful to predict the porosity formation of additive manufacturing process even before making real printed parts.
URI: https://hdl.handle.net/10356/88664
http://hdl.handle.net/10220/45982
DOI: https://doi.org/10.25341/D4959Q
Rights: © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:Pro-AM Conference Papers

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