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Open AccessArticle

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
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. View Full-Text
Keywords: additive manufacturing; SLM technology; porosity research; microhardness research additive manufacturing; SLM technology; porosity research; microhardness research
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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 Style

Kluczyński, 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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