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Special Issue “Advances in Epitaxial Materials”-Editorial Preface
Open AccessArticle

Effect of Laser Parameters on Processing of Biodegradable Magnesium Alloy WE43 via Selective Laser Melting Method

1
Faculty of Mechanical Engineering, Institute of Machine and Industrial Design, Brno University of Technology, Brno 60190, Czech Republic
2
Central European Institute of Technology, Research Group of Materials Characterization and Advance Coatings, Brno University of Technology, Brno 60190, Czech Republic
*
Author to whom correspondence should be addressed.
Materials 2020, 13(11), 2623; https://doi.org/10.3390/ma13112623
Received: 20 January 2020 / Revised: 6 April 2020 / Accepted: 5 June 2020 / Published: 9 June 2020
(This article belongs to the Section Biomaterials)
The global aim of the theme of magnesium alloy processing by the selective laser melting technology is to enable printing of replacements into the human body. By combining the advantages of WE43 magnesium alloy and additive manufacturing, it is possible to print support structures that have very similar properties to human bones. However, printing magnesium alloy parts is very difficult, and the printing strategies are still under development. Knowledge of weld deposit behaviour is needed to design a complex printing strategy and still missing. The main aim of the manuscript is the find a stable process window and identify the dependence of the weld deposit shape and properties on the laser power and scanning speed. The range of the tested parameters was 100–400 W and 100–800 mm/s for laser power and scanning speed. The profilometry and light microscopy were used to verify the continuity and shape evaluation. The microhardness and EDX analysis were used for the detailed view of the weld deposit. The manuscript specifies the weld deposit dimensions, their changes depending on laser power and scanning speed, and the continuity of the weld tracks. The stable weld deposits are made by the energy density of 5.5–12 J/mm2. Thin walls were also created by layering welds to determine the surface roughness scattering (Ra 35–60) for various settings of laser power and scanning speed. View Full-Text
Keywords: Mg-alloy; single track; additive manufacturing; thin wall; 3D printing; surface quality Mg-alloy; single track; additive manufacturing; thin wall; 3D printing; surface quality
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MDPI and ACS Style

Suchy, J.; Horynová, M.; Klakurková, L.; Palousek, D.; Koutny, D.; Celko, L. Effect of Laser Parameters on Processing of Biodegradable Magnesium Alloy WE43 via Selective Laser Melting Method. Materials 2020, 13, 2623. https://doi.org/10.3390/ma13112623

AMA Style

Suchy J, Horynová M, Klakurková L, Palousek D, Koutny D, Celko L. Effect of Laser Parameters on Processing of Biodegradable Magnesium Alloy WE43 via Selective Laser Melting Method. Materials. 2020; 13(11):2623. https://doi.org/10.3390/ma13112623

Chicago/Turabian Style

Suchy, Jan; Horynová, Miroslava; Klakurková, Lenka; Palousek, David; Koutny, Daniel; Celko, Ladislav. 2020. "Effect of Laser Parameters on Processing of Biodegradable Magnesium Alloy WE43 via Selective Laser Melting Method" Materials 13, no. 11: 2623. https://doi.org/10.3390/ma13112623

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