Modeling the interaction of laser radiation with powder bed at selective laser melting
By A. Gusarov, I. Smurov. 2010
213 citations recorded by the source corpus.
Obtaining uniform single vectors well attached to the substrate is necessary and sufficient for fabrication of complex-shape parts of high quality by selective laser melting. The temperature distribution in the laser/powder interaction zone and the shape of the melt pool is numerically calculated by the proposed model of coupled radiation and heat transfer applicable to single vectors. The analysis of the capillary stability of the segmental cylinder applied to the calculated melt pool estimates the stability of the process depending on the scanning velocity, powder layer thickness, and the material optical and thermal properties.
Subfields: Computational Mechanics, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/54f34f1bae4c134c2db28699bc769d9ce4b185de
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In Computational Mechanics
- Wayne E. King
- J. Newkirk
- Austin Sutton
- Ming C. Leu
- Caitlin S. Kriewall
- S. Khairallah
- A. Anderson
- T. Mukherjee
In Mechanical Engineering
Citations in the corpus
- Additive manufacturing of metallic components – Process, structure and properties (2018, methodology): “The maximum allowable length of the molten pool that prevents this instability can be obtained from the following relation based on Plateau Raleigh capillary instability [119]:”
- Laser powder-bed fusion additive manufacturing: Physics of complex melt flow and formation mechanisms of pores, spatter, and denudation zones (2015, background): “emphasized the importance of resolving the particle point contacts to capture the correct reduced effective thermal conductivity of the powder and the role of surface tension in breaking up the melt track into undesirable ball defects at higher laser scan speeds due to a variant of Plateau-Rayleigh ”
- Fluid and particle dynamics in laser powder bed fusion (2018, background): “However, due to the lack of convective motion in the powder and substrate, the lack of free surface deformation and keyhole formation, and an effective radiative absorption coefficient in the z-direction in the powder layer [28], the penetration into the substrate is underestimated.”