The Effect of Layer Thickness at Selective Laser Melting

By V. Sufiiarov, A. Popovich, E. Borisov, I. Polozov, D. Masaylo, A. Orlov. 2017

181 citations recorded by the source corpus.

Abstract Selective laser melting technology involves various parameters which may influence properties of the resulting part. This study presents the correlation between powder layer thickness and relative density, microstructure and mechanical properties of nickel-based superalloy produced by selective laser melting. It is shown that the microstructure of the bulk material consists of columnar dendritic cells. The size of these cells depends on the layer thickness used during SLM. Tensile strength and elongation at break also depend on the powder layer thickness during SLM. Samples build with 30 μm layer thickness demonstrate higher strength and lower elongation at break than those build with 50 μm layer thickness. It is also established that the horizontally build samples show higher strength properties and lower plasticity compared to the vertically build samples.

Subfields: Automotive Engineering, Industrial and Manufacturing Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/f955c647345530dc6084ebeb2c7969185868a05f

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Citations in the corpus

Effect of Process Parameters on the Generated Surface Roughness of Down-Facing Surfaces in Selective Laser Melting (2019, background): “concluded that parts built with 30 μm lay r thickn ss demonstrated higher strength and lower elongations than parts built with a 50 μm layer thickness [11].”
3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting (2019, background): “depressing the structural integrity and properties of the part [39].”