Results 251 to 260 of about 1,661,808 (287)
, 2010 Powder bed fusion (PBF) processes were among the first commercialized AM processes. Developed at the University of Texas at Austin, USA, Selective Laser Sintering (SLS) was the first commercialized powder bed fusion process. Its basic method of operation is schematically shown in Fig.
Ian Gibson, David Rosen, Brent Stucker
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Advanced powder characterization for laser powder-bed fusion of AlSi10Mg
, 2018 Laser Powder-Bed Fusion is an additive manufacturing technique that allows to produce complex parts. Apart from process parameters, a key aspect of this system is powder quality, which strongly affects processability. In fact, a low powder quality, in terms of flowability, usually results in undesired phenomena, such as inadequate parts produced or ...
CARROZZA, ALESSANDRO +7 more
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2020
Abstract This article focuses on powder bed fusion (PBF) of ceramics, which has the potential to fabricate functional ceramic parts directly without any binders or post-sintering steps. It presents the results of three oxide ceramic materials, namely silica, zirconia, and alumina, processed using PBF techniques. The article discusses the
S.I. Sing, W.Y. Yeong
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Abstract This article focuses on powder bed fusion (PBF) of ceramics, which has the potential to fabricate functional ceramic parts directly without any binders or post-sintering steps. It presents the results of three oxide ceramic materials, namely silica, zirconia, and alumina, processed using PBF techniques. The article discusses the
S.I. Sing, W.Y. Yeong
+4 more sources
2020
Abstract This article focuses on a study that was performed to understand the effects of powder attributes; process parameters; and hot isostatic pressing (HIP) treatment on the densification, mechanical and corrosion properties, and microstructures of 17-4 PH stainless steel gas- and water-atomized laser-powder bed fusion (LPBF) parts ...
Harish Irrinki +3 more
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Abstract This article focuses on a study that was performed to understand the effects of powder attributes; process parameters; and hot isostatic pressing (HIP) treatment on the densification, mechanical and corrosion properties, and microstructures of 17-4 PH stainless steel gas- and water-atomized laser-powder bed fusion (LPBF) parts ...
Harish Irrinki +3 more
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2022
Abstract According to International Organization for Standardization (ISO)/ASTM International 52900, additive manufacturing (AM) can be classified into material extrusion, material jetting, vat photo polymerization, binder jetting, sheet lamination, powder-bed fusion (PBF), and directed-energy deposition.
Ruban Whenish +4 more
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Abstract According to International Organization for Standardization (ISO)/ASTM International 52900, additive manufacturing (AM) can be classified into material extrusion, material jetting, vat photo polymerization, binder jetting, sheet lamination, powder-bed fusion (PBF), and directed-energy deposition.
Ruban Whenish +4 more
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Powder spreading in laser-powder bed fusion process
Granular Matter, 2021Laser-Powder Bed Fusion (LPBF) has been extensively utilized by a broad range of manufacturing industries in recent years. Fabricating parts with high mechanical properties and smooth surfaces has motivated such industries and academic communities to study different aspects and steps of the LPBF process, including powder spreading, laser scanning, and ...
M. Hossein Sehhat +1 more
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2020
Abstract Powder bed fusion (PBF) of polymers is a collection of additive manufacturing processes that melt and fuse polymer in a powder bed. This article provides a complete suite of materials and processes involved in PBF of polymers. The discussion includes details of thermal and manufacturing issues, and safety, postprocessing, and ...
David K. Leigh, David Bourell
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Abstract Powder bed fusion (PBF) of polymers is a collection of additive manufacturing processes that melt and fuse polymer in a powder bed. This article provides a complete suite of materials and processes involved in PBF of polymers. The discussion includes details of thermal and manufacturing issues, and safety, postprocessing, and ...
David K. Leigh, David Bourell
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Melting modes in laser powder bed fusion
Materialia, 2019Depending on processing conditions, laser powder bed fusion (LPBF) is known to have two operational regimes - conduction mode and keyhole mode. Heat conduction is the dominant heat transfer mechanism for conduction mode, whereas heat convection is the dominant heat transfer mechanism for keyhole mode.
Sagar Patel, Mihaela Vlasea
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Characterization Of Ti6Al4V Powder For Laser Powder Bed Fusion
Euro PM2025 ProceedingsThe performance of Laser Powder Bed Fusion (LPBF) is highly dependent on the quality of the metallic powder feedstock. This study characterizes a gas-atomized Ti6Al4V (Grade 5) powder, analyzing morphology, particle size distribution, flowability, true density, chemical composition, phase constitution, and thermal stability.
Jose Costa +6 more
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