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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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Calaon, Matteo
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2024Performance evaluation of polymer-filled metal fused filament fabrication tooling for profile extrusioncitations
- 2024Integration of soft tooling by additive manufacturing in polymer profile extrusion process chain
- 2023Impact of Injection Molding Parameters on Material Acoustic Parameters
- 2023Experimental testing and characterization of additively manufactured CF-PEEK dies for complex profile in polymer profile extrusion
- 2023Flow simulation and experimental validation of polymer extrusion using additively manufactured carbon fiber reinforced PEEK dies
- 2023Additive manufacturing in polymer extrusion tooling: experimental testing and surface characterization
- 2023Influence of surface roughness parameters of additively manufactured die on the extrudates in polymer extrusion
- 2022Micro-injection moulding simulation and manufacturing of polymer chips for acoustic separation
- 2022Effective polishing of inner surfaces of additive manufactured inserts for polymer extrusion using Plasma Electrolytic Polishing
- 2021Additive manufacturing of soft tools – Application of carbon fiber filled PEEK to polymer extrusion dies production
- 2021Enabling micro injection moulding using a soft tooling process chain with inserts made of mortar materialcitations
- 2020Dimensional Evaluation of Additive Manufactured Polymer Extrusion Dies Produced by Continuous Liquid Interface Production
- 2020Towards the integration of additively manufactured photopolymer dies in the polymer profile extrusion process chaincitations
- 2020On the implementation of metal additive manufacturing in the tooling process chain for polymer profile extrusioncitations
- 2019Quantitative depth evaluation of microgrooves on polymer material beyond the diffraction limitcitations
- 2019Modelling the filling behavior of micro structured plastic optical components
- 2019Value chain and production cost optimization by integrating additive manufacturing in injection molding process chaincitations
- 2018A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillarscitations
- 2018Manufacturing Signatures of Injection Molding and Injection Compression Molding for Micro-Structured Polymer Fresnel Lens Productioncitations
- 2018Pitch measurements validation of a structural coloured steel insert using Scanning Confocal Microscopy (SCM) and Atomic Force Microscopy (AFM)
- 2018Evaluation of injection pressure as a process fingerprint for Injection and Injection Compression Molding of micro structured optical components
- 2018Zero Defects manufacturing in Injection Compression Molding of Polymer Fresnel Lenses
- 2017Investigation on the micro injection molding process of an overmolded multi-material micro component
- 2017Replication of micro and nano-features on iPP by injection molding with fast cavity surface temperature evolutioncitations
- 2017Effects of fast mold temperature evolution on micro features replication quality during injection moldingcitations
- 2016Fast Mold Temperature Evolution on Micro Features Replication Quality during Injection Molding
- 2015Effect of Functional Nano Channel Structures Different Widths on Injection Molding and Compression Molding Replication Capabilities
- 2015Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings
- 2015Replication fidelity assessment of polymer large area sub-μm structured surfaces using fast angular intensity distribution measurements.
- 2015Microfluidic chip designs process optimization and dimensional quality controlcitations
- 2014Improvement of replication fidelity in injection moulding of nano structures using an induction heating system
- 2014Challenges in high accuracy surface replication for micro optics and micro fluidics manufacture
- 2014Process chain validation in micro and nano replication
- 2013Influence of process parameters on edge replication quality of lab-on-a-chip micro fluidic systems geometries
- 2012Production Quality Control Of Microfluidic Chip Designs
- 2012Packing parameters effect on injection molding of polypropylene nanostructured surfaces
- 2012Benchmarking of direct and indirect friction tests in micro formingcitations
- 2012PolyNano M6.2.1 First generation process finger print – design, test and validation
- 2012PolyNano M.6.1.1 Process validation state-of-the-art
- 2011Establishment of sub-µm structured polymer surfaces texture using a non-comnventional approach
- 2011Surface Nano Structures Manufacture Using Batch Chemical Processing Methods for Tooling Applications
Places of action
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document
Modelling the filling behavior of micro structured plastic optical components
Abstract
In the case of micro structured and freeform optics, such as Fresnel lenses, the challenges related to the filling of the samples address to formation of weld lines, cavity balance and mostly full replication of the part and its surface features. Even though simulation and modelling can help predict such errors, when dealing with micro structured components the multi-scale requirements of the problem become a challenge. Not only the model definition, but also more practical aspects, as model validation and the definition of the boundary conditions as meshing are time consuming, complex but necessary steps. In this research, modelling of the filling behavior of a micro structured optical component is performed and validated comparing Injection Molding simulation with measured Injection Molded parts. The adoption of different polymer dosages addresses the investigation on “short shots”, in this way the filling of the part could be investigated at different injection instances. The comparison encompasses both micro- and meso- scale quantities, such as the injection pressure measured at the screw, the part mass, and the height of the micro features. The results show that the adopted modelling solution is in accordance with the experimental results at both the geometrical scales.