Surface roughness analysis, modelling and prediction in selective laser melting

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Manufacturability of AlSi10Mg overhang structures fabricated by laser powder bed fusion (2018, background): “Laser powder bed fusion (LPBF) is an additive manufacturing (AM) process that shows great potential in producing metallic parts with complex shapes [1,2].”
Process defects and in situ monitoring methods in metal powder bed fusion: a review (2017, neutral): “The surface finishing depends on the surface orientation with respect to the growth direction (Fox et al ., 2016, Strano et al ., 2013).”
A review on the state-of-the-art of surface finishing processes and related ISO/ASTM standards for metal additive manufactured components (2020, background): “…F3213, F3055, F3056, Copper alloys, and Tungsten Ra 9–50 µm (EOSINT M 280; Karunakaran et al. 2012) SLM 125, 280, 500, 800 Full laser melting of powders F3318, F3184, F2924, F3001, F3213, F3055, F3056, Tool Steel, and Copper alloys, Ra 8–17 µm (Selective Laser Melting SLM; Strano et al. 2013)”
Surface texture metrology for metal additive manufacturing: a review (2016, background): “[49] noted upskin surface roughness was influenced by build orientation and layer thickness and downskin surfaces were additionally influenced by laser power.”