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Détail de l'auteur
Auteur Philipp Nikoleizig
Commentaire :
- RWTH Aachen - Germany
- Institute of Plastics Processing (IKV) - Aachen - Germany
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Minimization of warpage for injection molded parts by inverse thermal mold design / Christian Hopmann in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 1 (03/2018)
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Titre : Minimization of warpage for injection molded parts by inverse thermal mold design Type de document : texte imprimé Auteurs : Christian Hopmann, Auteur ; Philipp Nikoleizig, Auteur ; Hanna Dornebusch, Auteur ; T. Schneppe, Auteur Année de publication : 2018 Article en page(s) : p. 110-116 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Circuits de refroidissement
Gauchissement (matériaux)
Moulage par injection -- Défauts
Moule thermiqueIndex. décimale : 668.4 Plastiques, vinyles Résumé : For injection molding, a controlled heat removal is important to produce dimensional accurate parts efficiently. The following article introduces a new concept called inverse thermal mold design. Using this method, a proper cooling channel system for the injection mold can be produced to achieve minimal part warpage. Based on the postulate of a homogeneous material density distribution within the plastic part to achieve homogenous shrinkage, the method calculates the local cooling demand of the part to derive the cooling channel layout of the mold. Note de contenu : - Thematic Background
- Mathematical principles
- Test parameters and test sample
- Results : Discussion of the inverted thermal mold design
DOI : 10.3139/217.3451 En ligne : https://drive.google.com/file/d/1gpp-lxbftKTRvFfyUsD2lToNDB_9ttaH/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30192
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIII, N° 1 (03/2018) . - p. 110-116[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19659 - Périodique Bibliothèque principale Documentaires Disponible Mold makers are raising their game / Nicolai Lammert in KUNSTSTOFFE INTERNATIONAL, Vol. 104, N° 11 (11/2014)
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Titre : Mold makers are raising their game : Injection mold makers are in a process of systemic change Type de document : texte imprimé Auteurs : Nicolai Lammert, Auteur ; Philipp Nikoleizig, Auteur Année de publication : 2014 Article en page(s) : p. 6-14 Langues : Anglais (eng) Catégories : Moules d'injection
OutillageTags : 'Moules hautes performance' 'Contrôle de la température' multi-empreintes' 'Temps d'installation' 'Mise en réseau' Index. décimale : 668.4 Plastiques, vinyles Résumé : To meet current challenges, mold makers are increasingly turning to high-performance molds in combination with article-specific temperature control. Companies wanting to take the leap into the future are already examining the set-up times, networking of production and linking of development processes. Note de contenu : - Minimising set-up time creates flexibility
- Temperature control - a burning issue
- Faster, bigger, more functions - high-speed ans multi-cavity molds
- Sensor-aided, networked injection molding production
- Is faster and bigger always the best solution ?
- Structured mold production is essentialEn ligne : https://drive.google.com/file/d/1d3nVHUmpbku3lm1S4uo4dxT291Xm2m6G/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22621
in KUNSTSTOFFE INTERNATIONAL > Vol. 104, N° 11 (11/2014) . - p. 6-14[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16688 - Périodique Bibliothèque principale Documentaires Disponible Thermal mold design in consideration of the temperature control fluid flow / Christian Hopmann in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 4 (08/2013)
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Titre : Thermal mold design in consideration of the temperature control fluid flow Type de document : texte imprimé Auteurs : Christian Hopmann, Auteur ; Philipp Nikoleizig, Auteur Année de publication : 2013 Article en page(s) : p. 361-367 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Conception technique
Isolation thermique
Logiciels
Matières plastiques -- Moulage par injection
Moules d'injection
Rhéologie
Simulation par ordinateur
Systèmes de refroidissement
ThermocinétiqueIndex. décimale : 668.4 Plastiques, vinyles Résumé : The striving for injection molded parts with an increasing functional density leads to more complex molds, which are more and more designed with injection molding simulation. Nowadays, software allows the operator to analyse not only the filling stage, but also the thermal activity within both, the mold and the part during the whole process cycle. However, commercial simulation software for injection molding does not offer the visualisation of the flow of the temperature control medium to get a reliable determination of the pressure drop and the local heat transfer coefficients (HTC). For this reason the potential of an exact implementation of the local HTC „towards the temperature control medium, for improving the prediction precision of the thermal design, has been analysed at the Institute of Plastics Processing (IKV), Aachen. In order to use prior calculated HTCs from Computational Fluids „Dynamics (CFD) simulations inside injection molding simulations, the development of an analogous model was required. An isolation layer between cooling channel and mold was therefore introduced, which allows to set a local heat transfer by varying the geometric dimensions of the layer. Several cooling channel layouts, which differ in geometric aspects (e.g. bends, diameter or fragmentation/consolidation of parallel channels) were studied with this set-up. Note de contenu : - DESIGN OF THE EXPERIMENTAL INJECTION MOLD
- CALCULATION OF PRESSURE DROP BY ANALYTICAL METHODS
- REALISATIONS OF FLOW SIMULATIONS : Pressure loss - Heat transfer coefficient
- LINKING OF CFD AND INJECTION MOLDING SIMULATION
- COMPARISON OF THE CACULATED TEMPERATURE DISTRIBUTIONDOI : 10.3139/217.2697 En ligne : https://drive.google.com/file/d/1uJ6-SkjaRp_sMnkpy7eaKiLifGyi7qsI/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19280
in INTERNATIONAL POLYMER PROCESSING > Vol. XXVIII, N° 4 (08/2013) . - p. 361-367[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15396 - Périodique Bibliothèque principale Documentaires Disponible