On the Relevance of Volumetric Energy Density in the Investigation of Inconel 718 Laser Powder Bed Fusion
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Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
2
Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Viale Japigia 182, 70126 Bari (BA), Italy
*
Author to whom correspondence should be addressed.
Materials 2020, 13(3), 538; https://doi.org/10.3390/ma13030538
Received: 26 October 2019
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Revised: 5 December 2019
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Accepted: 21 January 2020
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Published: 23 January 2020
(This article belongs to the Special Issue Laser Materials Fabrication and Joining)
Laser powder bed fusion (LPBF) can fabricate products with tailored mechanical and surface properties. In fact, surface texture, roughness, pore size, the resulting fractional density, and microhardness highly depend on the processing conditions, which are very difficult to deal with. Therefore, this paper aims at investigating the relevance of the volumetric energy density (VED) that is a concise index of some governing factors with a potential operational use. This paper proves the fact that the observed experimental variation in the surface roughness, number and size of pores, the fractional density, and Vickers hardness can be explained in terms of VED that can help the investigator in dealing with several process parameters at once.
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MDPI and ACS Style
Caiazzo, F.; Alfieri, V.; Casalino, G. On the Relevance of Volumetric Energy Density in the Investigation of Inconel 718 Laser Powder Bed Fusion. Materials 2020, 13, 538. https://doi.org/10.3390/ma13030538
AMA Style
Caiazzo F, Alfieri V, Casalino G. On the Relevance of Volumetric Energy Density in the Investigation of Inconel 718 Laser Powder Bed Fusion. Materials. 2020; 13(3):538. https://doi.org/10.3390/ma13030538
Chicago/Turabian StyleCaiazzo, Fabrizia, Vittorio Alfieri, and Giuseppe Casalino. 2020. "On the Relevance of Volumetric Energy Density in the Investigation of Inconel 718 Laser Powder Bed Fusion" Materials 13, no. 3: 538. https://doi.org/10.3390/ma13030538
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