Journal ArticleDOI
Selective laser sintering of single‐ and two‐component metal powders
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In this paper, a comparative characterisation of selective laser sintering (SLS) mechanisms of single and two-component powders is presented, where the effects of the volume fraction of liquid phase and powder absorptance were discussed.Abstract:
A comparative characterisation of selective laser sintering (SLS) mechanisms of single‐ and two‐component powders is presented The effects of the volume fraction of liquid phase and the powder absorptance were discussed Single‐component Ni‐alloy, Fe and Cu powders as well as two‐component powder systems based on Ni‐alloy, Fe and Cu were investigated In particular, the following types of two‐component powder systems were studied: Ni‐alloy‐Cu and Fe‐Cu powder mixtures as well as Cu‐coated Ni‐alloy powder and Cu‐coated Fe powders SLS experiments were performed with a CW‐ Nd:YAG laser (λ=106 μm) The acting mechanism in all cases was liquid phase sinteringread more
Citations
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Journal ArticleDOI
Influence of energy density on metallurgy and properties in metal additive manufacturing
Shahir Mohd Yusuf,Nong Gao +1 more
TL;DR: A review of additive manufacturing of metal components can be found in this article, where the influence of energy density on metallurgy, microstructure and mechanical properties of fabricated parts is addressed.
Journal ArticleDOI
Laser powder-bed fusion of Inconel 718 to manufacture turbine blades
TL;DR: In this paper, laser powder-bed fusion is investigated as an advanced industrial prototyping tool to manufacture Inconel 718 turbine blades at a predesign stage before flow production.
Journal ArticleDOI
Microstructural characterization and wear behavior of (Fe,Ni)–TiC MMC prepared by DMLS
TL;DR: In this article, microstructure, phase composition, mechanical and tribological properties of (Fe,Ni)-TiC composites prepared by DMLS were investigated, and thermal cracking during sintering was observed.
Book ChapterDOI
Selective Laser Sintering/Melting
TL;DR: Selective laser sintering/melting is a powder-and laser-based additive manufacturing process that can process many types of materials such as polymer, metal, ceramic, and composite and can make complex parts as discussed by the authors.
Journal ArticleDOI
Laser sintering of metal powders on top of sintered layers under multiple-line laser scanning
Bin Xiao,Yuwen Zhang +1 more
TL;DR: In this article, a three-dimensional numerical model for multiple-line sintering of loose powders on top of multiple sintered layers under the irradiation of a moving Gaussian laser beam is carried out.
References
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PatentDOI
Direct selective laser sintering of metals
Suman Das,Joseph J. Beaman +1 more
TL;DR: In this paper, a method of fabricating a fully dense, three dimensional object by direct laser sintering is disclosed, in which a degased powder layer is dispensed over a target surface and a beam of directed energy melts metallic powder in order to form a solid layer cross section.
Journal ArticleDOI
Absorptance of powder materials suitable for laser sintering
TL;DR: In this paper, the normal spectral absorptance of a number of metal, ceramic and polymer powders susceptible to be utilised for selective laser sintering (SLS) technique was experimentally determined.
Comparison between CO2 and ND:YAG lasers for use with selective laser sintering of steel-copper powders
TL;DR: In this paper, the performance of different sources of laser disponibles for frittage selectif direct au laser des poudres metalliques without aucun liant polymere is analyzed.
Comparison between CO2 and Nd:YAG lasers for use with selective laser sintering of steel-copper powders
TL;DR: In this paper, the performance of different sources of laser disponibles for frittage selectif direct au laser des poudres metalliques without aucun liant polymere is analyzed.