Absorptance of powder materials suitable for laser sintering

By Nikolay K. Tolochko, Yu. V. Khlopkov, Sergei E. Mozzharov, M. Ignatiev, T. Laoui, Victor I. Titov. 2000

508 citations recorded by the source corpus.

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

View Paper: https://www.semanticscholar.org/paper/1149b23b09d403650e9ca239927e43ee32260da2

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Citations in the corpus

Correlation between porosity and processing parameters in TiAl6V4 produced by selective laser melting (2016, background): “(1) does not represent the amount of energy actually introduced into thematerial: the effective volume energy, reduced by effects such as local and wavelength dependent absorption and reflectance properties of the power particles in the layer, the formed melt and plasma, is usually much lower [35,36”
On the development of direct metal laser sintering for rapid tooling (2003, background): “This is a consequence of powder agglomeration during the layer coating regarding to its influence on the absorption rate of the laser beam [32,33].”
Understanding the effect of laser scan strategy on residual stress in selective laser melting through thermo-mechanical simulation (2016, background): “For powder, this is assumed to be the same as pure titanium powder [34] and for the solid substrate is assumed to be [35].”
Experimental and numerical analysis of the selective laser sintering (SLS) of PA12 and PEKK semi-crystalline polymers (2015, background): “In another rather pioneer work by (Tolochko et al., 2000), the determination of normal spectra absorptance of a large range of metals and polymer powders under Nd:YAG or CO2 laser irradiation was investigated, but without considering in-depth transmission aspects.”
Influence of energy density on metallurgy and properties in metal additive manufacturing (2017, background): “The occurrence of balling is governed by variousmetallurgical mechanisms including molten pool behaviour, Marangoni convection and wettability [86,103,135].”
Uncertainty quantification and management in additive manufacturing: current status, needs, and opportunities (2017, background): “Heat source [25, 26, 30, 61–66] ⋅ Gaussian distribution for horizontal intensity ⋅ Direct measurement [26, 67] ⋅ Trajectory tracking of photons ⋅ Monte Carlo simulation (MCS) ⋅ Material type ⋅ Powder distribution ⋅ Beam diameter ⋅ Laser power ⋅ Powder shape ⋅ Thermal diffusivity ⋅ Scan speed ⋅ Absor”
Rapid Manufacturing of Metal Components by Laser Forming (2006, background): “Several research studies have reported that, it is possible to have a larger melting depth for the same power density by using an Nd:YAG laser because of the higher absorptivity and better coupling [34].”
Lasers and materials in selective laser sintering (2002, methodology): “Results of measurements of laser incoupling in powders performed with an integrating sphere are reported in Table IV (Tolochko et al., 2000).”
A review of additive manufacturing of ceramics by powder bed selective laser processing (sintering / melting): Calcium phosphate, silicon carbide, zirconia, alumina, and their composites (2021, background): “6 μm) lasers [137,138] (*measured by authors of this review).”