Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88702
Title: A study on the influence of powder packing density on the melt track in the selective laser melting process
Authors: Le, Kim Quy
Tang, Chao
Wong, Chee How
Keywords: Additive Manufacturing
Selective Laser Melting
DRNTU::Engineering::Mechanical engineering::Prototyping
Issue Date: 2018
Source: Le, K. Q., Tang, C., & Wong, C. H. (2018). A study on the influence of powder packing density on the melt track in the selective laser melting process. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 703-708. doi:10.25341/D4P301
Abstract: A numerical model was employed to mimic the selective laser melting (SLM) process. The powder bed following Gaussian distribution was generated by using the discrete element method (DEM). Different packing densities of the powder bed were generated by applying a compression force along the build direction. The melt track characteristics were simulated using a computational fluids dynamics (CFD) model. An average powder diameter of 27 μm and a layer thickness of 50 μm were used in this model. The study found that the powder packing density significantly affects the melt track characteristics. Increase in the packing density leads to an increase in the melt track height while reducing the melt track depth and melt track width.
URI: https://hdl.handle.net/10356/88702
http://hdl.handle.net/10220/45999
DOI: 10.25341/D4P301
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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