The Influence of Exposure Energy Density on Porosity and Microhardness of the SLM Additive Manufactured Elements
Institute of Machine Building, Faculty of Mechanical Engineering, Military University of Technology, 00-908 Warsaw 49, Poland
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Materials 2018, 11(11), 2304; https://doi.org/10.3390/ma11112304
Received: 19 October 2018 / Revised: 7 November 2018 / Accepted: 14 November 2018 / Published: 16 November 2018
(This article belongs to the Special Issue Advances in Hard-to-Cut Materials: Manufacturing, Properties, Process Mechanics and Evaluation of Surface Integrity)
Selective laser melting (SLM) is an additive manufacturing technique. It allows elements with very complex geometry to be produced using metallic powders. A geometry of manufacturing elements is based only on 3D computer-aided design (CAD) data. The metal powder is melted selectively layer by layer using an ytterbium laser. This paper contains the results of porosity and microhardness analysis made on specimens manufactured during a specially prepared process. Final analysis helped to discover connections between changing hatching distance, exposure speed and porosity. There were no significant differences in microhardness and porosity measurement results in the planes perpendicular and parallel to the machine building platform surface.
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MDPI and ACS Style
Kluczyński, J.; Śnieżek, L.; Grzelak, K.; Mierzyński, J. The Influence of Exposure Energy Density on Porosity and Microhardness of the SLM Additive Manufactured Elements. Materials 2018, 11, 2304. https://doi.org/10.3390/ma11112304
AMA Style
Kluczyński J, Śnieżek L, Grzelak K, Mierzyński J. The Influence of Exposure Energy Density on Porosity and Microhardness of the SLM Additive Manufactured Elements. Materials. 2018; 11(11):2304. https://doi.org/10.3390/ma11112304
Chicago/Turabian StyleKluczyński, Janusz; Śnieżek, Lucjan; Grzelak, Krzysztof; Mierzyński, Janusz. 2018. "The Influence of Exposure Energy Density on Porosity and Microhardness of the SLM Additive Manufactured Elements" Materials 11, no. 11: 2304. https://doi.org/10.3390/ma11112304
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