Preprint Article Version 1 This version is not peer-reviewed

The Influence of Exposure Energy Density on Porosity and Microhardness of the SLM Additive Manufactured Elements

Version 1 : Received: 19 October 2018 / Approved: 22 October 2018 / Online: 22 October 2018 (04:09:54 CEST)

A peer-reviewed article of this Preprint also exists.

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. 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.

Journal reference: Materials 2018, 11, 2304
DOI: 10.3390/ma11112304

Abstract

Selective Laser Melting (SLM) is an additive manufacturing technique. It allows to produce elements with very complex geometry using metallic powders. A geometry of manufacturing elements bases only on 3D CAD data. The metal powder is melt selectively layer by layer using ytterbium laser. The paper contains results of porosity and microhardness analysis made on specimens which were manufactured during specially prepared process. Final analysis helped to discover connections between changing hatching distance, exposure speed and porosity. There was no significant differences in microhardness and porosity measurement results in the planes: perpendicular and parallel to the machine building platform surface.

Subject Areas

additive manufacturing; SLM technology; porosity research; microhardness research

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