Datum
2023-02-16Autor
Sode, MarcoKahlert, MoritzArold, TizianFros, Adam PeterVollmer, MalteNiendorf, ThomasFehlbier, MartinSchlagwort
620 Ingenieurwissenschaften 660 Chemische Verfahrenstechnik, Technische Chemie Rapid Prototyping <Fertigung>DruckgussHochdruckWerkzeugstahlWärmeübergangszahlSelektives LaserschmelzenMetadata
Zur Langanzeige
Aufsatz
Tailoring flow behavior and heat transfer in tempering channels for high-pressure die casting—analysis of potentials of commercial static mixers and prospects of additive manufacturing
Zusammenfassung
Additive manufacturing (AM) opens up manifold possibilities to influence the heat transfer between fluid and die in high-pressure die casting (HPDC), eventually allowing to minimize the total cycle time of the process. AM already has been exploited to establish near-contour temperature control systems in industrial applications. However, AM not only allows to influence the position of tempering channels in dies but it also allows to influence the fluid dynamics itself, e.g., by imprinted static mixers. Up to now, such flow-influencing mixing elements have not been considered in metal AM. In the present work, the impact of such metallic static mixers and most relevant processing conditions is investigated experimentally as well by computational fluid dynamics (CFD) simulation. In a first step, conventional static mixer elements are integrated into straight tempering channels to stimulate turbulences of the flowing tempering medium, finally resulting in an increase of the heat transfer up to 33%. In a second step, laser-based powder bed fusion of metals (PBF-LB/M) is applied to realize static mixers. Results obtained reveal that tempering channels without negative influences on the general flow behavior compared to conventional static mixers in straight tempering channels can be realized. In conclusion, the presented results show a positive impact on heat transfer and, thus, allow to further increase the economic efficiency of the HPDC process.
Zitierform
In: The International Journal of Advanced Manufacturing Technology Volume 125 / Issue 11-12 (2023-02-16) , S. 5463-5477 ; eissn:1433-3015Förderhinweis
Gefördert im Rahmen des Projekts DEALZitieren
@article{doi:10.17170/kobra-202304057779,
author={Sode, Marco and Kahlert, Moritz and Arold, Tizian and Fros, Adam Peter and Vollmer, Malte and Niendorf, Thomas and Fehlbier, Martin},
title={Tailoring flow behavior and heat transfer in tempering channels for high-pressure die casting—analysis of potentials of commercial static mixers and prospects of additive manufacturing},
journal={The International Journal of Advanced Manufacturing Technology},
year={2023}
}
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2023-04-12T09:38:35Z 2023-04-12T09:38:35Z 2023-02-16 doi:10.17170/kobra-202304057779 http://hdl.handle.net/123456789/14579 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ high-pressure die casting (HPDC) die tempering tool steel (AISI H13) heat transfer coefficient (HTC) selective laser melting (SLM) conformal cooling 620 660 Tailoring flow behavior and heat transfer in tempering channels for high-pressure die casting—analysis of potentials of commercial static mixers and prospects of additive manufacturing Aufsatz Additive manufacturing (AM) opens up manifold possibilities to influence the heat transfer between fluid and die in high-pressure die casting (HPDC), eventually allowing to minimize the total cycle time of the process. AM already has been exploited to establish near-contour temperature control systems in industrial applications. However, AM not only allows to influence the position of tempering channels in dies but it also allows to influence the fluid dynamics itself, e.g., by imprinted static mixers. Up to now, such flow-influencing mixing elements have not been considered in metal AM. In the present work, the impact of such metallic static mixers and most relevant processing conditions is investigated experimentally as well by computational fluid dynamics (CFD) simulation. In a first step, conventional static mixer elements are integrated into straight tempering channels to stimulate turbulences of the flowing tempering medium, finally resulting in an increase of the heat transfer up to 33%. In a second step, laser-based powder bed fusion of metals (PBF-LB/M) is applied to realize static mixers. Results obtained reveal that tempering channels without negative influences on the general flow behavior compared to conventional static mixers in straight tempering channels can be realized. In conclusion, the presented results show a positive impact on heat transfer and, thus, allow to further increase the economic efficiency of the HPDC process. open access Sode, Marco Kahlert, Moritz Arold, Tizian Fros, Adam Peter Vollmer, Malte Niendorf, Thomas Fehlbier, Martin doi:10.1007/s00170-023-10920-5 Rapid Prototyping <Fertigung> Druckguss Hochdruck Werkzeugstahl Wärmeübergangszahl Selektives Laserschmelzen publishedVersion eissn:1433-3015 Issue 11-12 The International Journal of Advanced Manufacturing Technology 5463-5477 Volume 125 false
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