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Showing 1 to 13 of 13 for “"Powder bed fusion (PBF)"”.
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Modelling of the powder sintering process and relative thermal conductivity variation during the electron beam powder bed fusion (PBF-EB)
L'abstract è presente nell'allegato / the abstract is in the attachment
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Thermal Fe Analysis of Powder Bed Fusion Process: Power Input Evaluation and Parameter Sensitivity
We investigated the thermal behavior of the powder bed fusion (PBF) manufacturing process. Specifically, a finite element thermal analysis procedure was developed to simulate selective laser melting, one of several PBF processes available on the market. The primary objective was to study how …
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Deformation behaviour of additively manufactured microlattice structures : a micro-structural investigation
… bulk structures. Samples manufactured by laser Powder Bed Fusion (PBF) process using 316L stainless steel were used as the candidate microlattice material, and detailed material characterization revealed both internal and external structure to be marred with defects ranging from bulk to …
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Characterisation of mechanically alloyed feedstock for laser-powder bed fusion: titanium silicon carbide metal matrix composite
… characterisation for in-situ alloying for laser bed fusion. Evidence showed that acceptable parameters could be found for mechanical alloying with a rotational speed of 500 rev/min and an alloying time of twenty-four minutes that showed minimal and acceptable changes in size and morphology, …
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Melt Pool Feature Extraction, A State-Space Model and Spatial Layer-to-Layer Control for Powder Bed Fusion
<p>"Powder Bed Fusion (PBF) is an Additive Manufacturing (AM) technique which can reduce material waste and is a fast-prototyping technique for complex geometries. However, the lack of consistent quality is a major problem in industrial applications. An InfraRed (IR) camera is a common tool to …
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Fatigue and Fracture of Electron Beam Melting Ti-6Al-4V
… alloy, made by the Electron Beam Melting (EBM) Powder Bed Fusion (PBF) method. As illustrated in this work, the EBM Ti-6Al-4V properties vary depending on processing conditions, post-processing treatments (e.g. hot isostatic pressing: HIP), specimen orientation, and chemical content of the …
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On the development of new PolyArylEtherKetone bulk solids for Powder Bed Fusion
Powder Bed Fusion (PBF) of polymers, a form of Additive Manufacturing (AM) is an established manufacturing process where fine powdered materials are consolidated by an energy source to form polymeric parts without the need for moulds or tooling. A requirement of the process is a fine powder …
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Tailoring Siloxane Functionality for Lithography-based 3D Printing
… chain-extension reaction in the absence of diffusion. Photocalorimetry, photorheology, and soxhlet extraction measured photocuring kinetics and demonstrated high gel fractions upon photocuring. A further improvement on the low-temperature elastomeric behavior occurred via introduction of a …
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Crystallization Behavior, Tailored Microstructure, and Structure-Property Relationships of Poly(Ether Ketone Ketone) and Polyolefins
… during the additive manufacturing processes of powder bed fusion (PBF) and material extrusion (MatEx). The crystallization kinetics of iPP, iPP-PE copolymers, and iPP/iPP-PE blends exhibited bimodal parabolic-like behavior attributed to crystallization of the mesomorphic crystal polymorph at low …
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Additive manufacturing of polyolefins via powder bed fusion
Powder bed fusion (PBF) is an additive manufacturing (AM) process in which a fine polymer powder is selectively heated and melted using infra-red (IR) energy from a CO2 laser to melt the powder and coalesce the molten polymer together to form each layer. Semi-crystalline polymers are the most …
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Property-Process-Property Relationships in Powder Bed Fusion Additive Manufacturing of Poly(phenylene sulfide): A Case Study Toward Predicting Printability from Polymer Properties
Powder bed fusion (PBF) is one of seven technology modalities categorized under the term additive manufacturing (AM). Beyond the advantages of fabricating complex geometries and the "tool-less manufacturing" paradigm common to all types of AM, polymer PBF shows potential for significant industrial …
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Towards sustainable manufacturing in the PBF-LB industrial process: assessment of opportunities and challenges
L'abstract è presente nell'allegato / the abstract is in the attachment