| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ferraris, Eleonora
KU Leuven
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Material extrusion additive manufacturing of zirconia: from filament characterisation to Weibull statisticscitations
- 2024Impact of strand deposition and infill strategies on the properties of monolithic copper via material extrusion additive manufacturingcitations
- 2024Production and characterisation of filament-based Material Extrusion (MEX) additively manufactured copper partscitations
- 2023Trueness of cone-beam computed tomography-derived skull models fabricated by different technology-based three-dimensional printerscitations
- 2023Pedot:PSS/Graphene Oxide (GO) Ternary Nanocomposites for Electrochemical Applicationscitations
- 2016Shaping of engineering ceramics by electro, chemical and physical processescitations
- 2016Analysis of Wire-EDM finishing cuts on large scale ZrO2-TiN hybrid spark plasma sintered blankscitations
- 2015Extrusion-based 3D printing of ceramic componentscitations
- 2014Micromilling of sintered ZrO2 ceramic via cBN and diamond coated toolscitations
- 2013Aerosol Jet® printing of micro silver tracks on stereolithography resin
- 2012Machinability investigation on high speed hard turning of ZrO2 with PCD toolscitations
- 2012Micro scale milling investigation of fully sintered ZrO2 ceramics with diamond coated end-mills
- 2012Influence of mould thermal properties on the replication of micro parts via injection moulding
- 2010Micro-EDM machining of ceramic materials
- 2010Micro-EDM machining behaviour of ZrO2-TiN ceramic composites
- 2009Free form microprocessing of ceramic materials by electro discharge machining
- 2008Flexible materials for optical applications
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article
Impact of strand deposition and infill strategies on the properties of monolithic copper via material extrusion additive manufacturing
Abstract
The present research presents a comprehensive study on the process optimisation and characterisation of fully dense and pure Cu parts manufactured by Material Extrusion Additive Manufacturing (MEX). This technology is an emerging approach to additively manufacture high-performance metal components due to its multi-step nature that allows to shape and subsequently sinter complex design parts. A commercially available filament with 60 vol% (93 wt%) copper particles and polymeric binders was used and characterised in this study. Two approaches were combined for the first time to maximise the final density of the copper parts; a statistical approach (using ANOVA) and an optimisation approach based on the strand cross-section. Based on the former, the flow rate multiplier during printing has a significant effect on the density of the as-printed parts. The latter aimed at studying the effect of the ratio between extrusion width, layer height, and nozzle diameter on the deposited strand morphology. An extrusion width equal to and a layer height lower than the nozzle diameter contribute to precise strand dimensions, leading to improved control of the final green density. After solvent and thermal debinding followed by pressureless and supportless sintering in pure H2 at 1050 °C, the copper parts resulted in a relative density > 95 % and an electrical conductivity of ∼93 %IACS as an indication of the purity of the starting material and the quality of the whole process chain. Tensile testing of as-sintered dog-bone samples, built with 0°, 90° and ±45° infill patterns and a single wall contour, revealed the best results for the ±45° strategy with an ultimate tensile strength of 164 MPa and an elongation at fracture of 24 %. Finally, a copper coil for electromagnetic applications was manufactured, for the first time, via filament-based MEX and tested. It reported an electrical conductivity competitive to that reported in the literature (∼70 %IACS). This result was discussed in relation to a simple monolithic Cu geometry to provide insight into the complexity and concomitant scientific relevance of applying MEX to functional components.