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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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Schuschnigg, Stephan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Simulation of the Melting Region in Additive Manufacturing Material Extrusion Dies for Highly Filled Feedstocks
- 2024Comparative analysis of binder systems in copper feedstocks for metal extrusion additive manufacturing and metal injection mouldingcitations
- 2024Production of Permanent Magnets from Recycled NdFeB Powder with Powder Extrusion Mouldingcitations
- 2024Binder System Composition on the Rheological and Magnetic Properties of Nd-Fe-B Feedstocks for Metal Injection Moldingcitations
- 2024Rapid tooling for rubber extrusion molding by digital light processing 3D printing with dual curable vitrimerscitations
- 2024Additive Manufacturing Material Extrusion @ Institute of Polymer Processing
- 2023Susmagpro
- 2023Debinding And Sintering Strategies For Fused Filament Fabrication Of Aluminium Alloyscitations
- 2023Effects of Different Polypropylene (PP)-Backbones in Aluminium Feedstock for Fused Filament Fabrication (FFF)citations
- 2023Validation Of Alternative Binders for Pellet Extrusion 3D Printing Of 316L Steels
- 2022Research Progress on Low-Pressure Powder Injection Moldingcitations
- 2022In-situ alignment of 3D printed anisotropic hard magnetscitations
- 2021Thermal conductive, electrically insulating polymer compounds using material extrusion additive manufacturing for electronic parts
- 2021Powder content in powder extrusion moulding of tool steelcitations
- 2020Additive Fertigung metallischer und keramischer Bauteile
- 2019Fabrication and properties of extrusion-based 3D-printed hardmetal and cermet componentscitations
- 2019Filament-extrusion 3D printing of hardmetal and cermet parts
- 2018Feedstocks for the Shaping-Debinding-Sintering Process of Multi Material Components
- 2018Adhesion of standard filament materials to different build platforms in material extrusion additive manufacturing
- 2018Material Extrusion Additive Manufacturing for Photocatalytic Applications
- 2018Highly-filled Polymers for Fused Filament Fabrication
- 2018Additive Manufacturing of Metallic and Ceramic Components by the Material Extrusion of Highly-Filled Polymerscitations
- 2018Polypropylene Filled With Glass Spheres in Extrusion‐Based Additive Manufacturingcitations
- 2017Effect of the printing bed temperature on the adhesion of parts produced by fused filament fabricationcitations
- 2016Dissipative particle dynamics simulations of orientation of layered silicate particles embedded in polymer melts under shear flowscitations
- 2016Structure of Polypropylene Macromolecules in the Vicinity of Fe2O3 Surface
- 2016Effect of Particle Size on the Properties of Highly-Filled Polymers for Fused Filament Fabrication
- 2016Bonding Forces in Fused Filament Fabrication
- 2016Coupled Orientation and Stretching of Chains in Mesoscale Models of Polydisperse Linear Polymers in Startup of Steady Shear Flow Simulationscitations
- 2016Haftungsvorhersage und Haftungsverbesserung im Fused Filament Fabrication (FFF) Prozess
- 2016Special Materials and Technologies for Fused Filament Fabrication
- 2016Properties for PIM Feedstocks Used in Fused Filament Fabrication
- 2016Optimization of twin screw extrusion using CFD for polymer/nanoclay composites
- 2015Optimization of Twin Screw Extrusion using CFD for Polymer/Nanoclay Composites
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document
Thermal conductive, electrically insulating polymer compounds using material extrusion additive manufacturing for electronic parts
Abstract
Global energy consumption and the shift to more environmentally friendly power sources and uses demand an increasing number of power electronic components.1 Efficiency and reliability of power electronic components strongly rely on a maximum temperature. As theygenerateacertainamountofheatthisthermalenergyhastobededucedfromthe sourceintotheenvironment.Themostlyusedpassivecoolersaremanufacturedby extrusion and are made of highly thermal conductive metals. By using extrusion technology, the shapes are limited to, in one direction, uniform shapes. These mostly finned heatexchangersareeasyandcheaptoproduce.Oneofthebiggestdisadvantagesisthe limited design and that the heat exchanger needs a coupling to the source surface. This is mostly done by a thermal conductive paste which also can act as a glue. These pastes need a second step for applying and the life span is limited. The heat transfer from the source goesintothepasteandfromthepasteintotheheatexchangerandlimitsthereforethe possibleamountoftransferredheat.Usingpolymerprocessingtechnologies,theshapes canvarymuchmoreandadditionalfreedomcomesintodesign,byusingadditive manufacturing. The biggest draw back is the limited heat conductivity,2 were metals like aluminium has values of up to 230, Copper 390 and unfilled polymers as Polyamides have lowerthan0.3 W·(m·K)-1.Withdifferentshapesandfillers,compoundswereproduced and the heat conductivity was measured. One of the challenges with highly filled systems <br/>is the stiffness of these compounds, which hinders the use of a filament for extrusion based additive manufacturing. Therefore, we added a thermoplastic elastomer into the compound to soften the material so that we can process it into filaments. Different polymer compounds were pressed into plates and the most promising candidates were extruded into filament and used on a Material Extrusion Printer. The heat exchanger was directly printed on a power resistor, which is used for testing the heat transfer into a measuring device.