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Titre : Cracking product development : When traditional approaches meet their micromechanical counterparts Type de document : texte imprimé Auteurs : Cristoph Hinse, Auteur ; Tobias Schäfer, Auteur Année de publication : 2021 Article en page(s) : p. 20-22 Langues : Anglais (eng) Catégories : Eléments finis, Méthode des
Mousses plastiques -- Moulage par injection
Mousses plastiques -- Propriétés mécaniques
Simulation par ordinateurIndex. décimale : 668.4 Plastiques, vinyles Résumé : In the realm of virtual product development, the idea of the cycle has been around for many years. But where does the cycle begin? When we take a closer look at this concept, new aspects rightly start to emerge. For example, whether it is possible or necessary to augment or expand existing, hitherto proven mechanisms so that goals can be achieved, or perhaps even surpassed - and, if so, how this is to be accomplished. Note de contenu : - Separate develoopment steps
- Mechanical properties as the crux
- Coupling of process simulation, material modeling and FEA
- Fig. 1 : Stress-strain diagram as a function of microstructure. Shown are three different porosities (5 to 15 %) relative to the compact material
- Fig. 2 : Panel of a household appliance as an example of successful virtual product developmeny
- Fig. 3 : Result of the process simulation for the temperature control system of the panel
- Fig. 4 : Simulated cell structure (left) and CT image (right) of a rib: a high degree of matching is evident
- Fig. 5 : With the aid of the material cards generated and computed in Digimat, a three-point bending test was simulated in the FEA software, and was also carried out in parallel on the real componentEn ligne : https://drive.google.com/file/d/1-gU9cRLX_8PQtMSY9mFfPhWvmW_MQZnK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35715
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 4 (2021) . - p. 20-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22682 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : More is less : Simulation as a tool for weighing process options before producing optical components Type de document : texte imprimé Auteurs : Cristoph Hinse, Auteur ; Nuno Ribeiro Simões, Auteur Année de publication : 2020 Article en page(s) : p. 31-35 Langues : Anglais (eng) Catégories : Lentilles (optique)
Matières plastiques -- Moulage par injection
Moulage par injection-compression
Simulation par ordinateur
Structures multicouchesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Making the production of optical lenses economical while maintaining a certain level of product quality poses a huge challenge. Aside from the need to modify the geometry of the molded part, there is often a debate about the right production strategy. Injection-compression molding may offer an alternative to injection molding in terms of quality, but it is also cost-intensive. This is where simulation can serve as a decision-making aid. Note de contenu : - Injection molding or injection-compression molding ?
- Simulation insights and differences
- Multi-layer injection molding shortens cycle time
- Simulation model and simulation sequence for a biconvex lens
- Comparison of simuulation results
- Figure : Simulated production of a two-layer, aspherical, biconvex lens. Here, mold filling is superimposed with the fringed pattern of the final lens
- Fig. 1 : Two-layer injection molding : visualization of the simulation model for the first and second component, including mold and temperature control
- Fig. 2 : The filling study shows the high level of agreement between injection molding reality and simulation
- Fig. 3 : The pronounced pressure gradient that occurs during injection molding contrasts with the homogeneous pressure distribution arising in injection-compression molding
- Fig. 4 : Flow-induced residual stress in the XX direction is more pronounced in injection molding than in injection-compression molding
- Fig. 5 : Flow-induced and thermally induced fringed patterns and the superposition of both effects for the simulated lens using injection molding as an exampleEn ligne : https://drive.google.com/file/d/13sZLvpuzsq8WKv-J4e5Pyxj9lO06Mk8J/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34268
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 4 (2020) . - p. 31-35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21700 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Power lies in the water : Fluid-assisted injection molding and its simulation : the combination for improved efficiency Type de document : texte imprimé Auteurs : Cristoph Hinse, Auteur ; Nuno Ribeiro Simões, Auteur ; Stefan Hofmann, Auteur ; Christian Hopmann, Auteur ; Matthias Theunissen, Auteur Année de publication : 2018 Article en page(s) : p. 26-29 Langues : Anglais (eng) Catégories : Matières plastiques -- Moulage par injection assisté par gaz
Matières plastiques -- Moulage par injection assistée par eau
Matières plastiques -- Refroidissement
Simulation par ordinateur
Température -- ContrôleIndex. décimale : 668.4 Plastiques, vinyles Résumé : Short product lifecycles and high demands on injection molded parts require efficient product development methods. Besides new process management strategies, simulation is an important component at an early stage of product and mold development. This article validates the simulation of the water-assisted injection molding technique, compares two fluid-assisted injection molding techniques (FAIM) and presents a typical practical application. Note de contenu : - Residual wall thickness as quality feature
- Validation of the simulation with a comparison of the cooling efficiency of WAIM vs GAIM
- Practical decision-making aid : which process is suitable ?
- Simulating the grip for the thermomix
- Fig. 1 : Simulation of the media line with water bubble and distribution of the measurement positions and measurement points of the residual wall thicknesses over the cross-section
- Fig. 2 : Comparison between reality and simulation with the aid of the redidual wall thicknesses (T, L, B, R), eccentricity (E) and the area ratio of the displaced molten core (A) for MP2 and MP 3, indicating the 3δ range
- Fig. 3 : Numerical comparison of the cooling efficiency of WAIM and GAIM indicating the sensor position on the media line for the measurement
- Fig. 4 : Because of its digital capabilities, the Thermomix has become known as the 'iPhone from Wuppertal"
- Fig. 5 : Movable moldhalf (AS), stationary mold half (DS) with slide elements show open
- Fig. 6 : Overview of the simulation model with temperature-control system, cold runner, cavity and overspill cavity. Simulating the grip for the mixing bowl of the Thermomix, showing the water bubble in the part overspill cavityEn ligne : https://drive.google.com/file/d/1AESrj4NnIvwaScDcPOFwCkj1OUSJhMOa/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30598
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 26-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19890 - Périodique Bibliothèque principale Documentaires Disponible Press process integrates intermediate production / Ulf Breuer in KUNSTSTOFFE INTERNATIONAL, Vol. 104, N° 12 (12/2014)
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Titre : Press process integrates intermediate production : Manufacturing parts with fiber-reinforced thermoplastics Type de document : texte imprimé Auteurs : Ulf Breuer, Auteur ; Martin Gurka, Auteur ; Martin Priebe, Auteur ; Markus Schuck, Auteur ; Thomas Bischof, Auteur ; Dirk Zimmermann, Auteur ; Wolfgang Rauscher, Auteur ; Cristoph Hinse, Auteur Année de publication : 2014 Article en page(s) : p. 42-45 Langues : Anglais (eng) Catégories : Composites à fibres -- Moulage par compression
Composites à fibres -- Propriétés mécaniques
Composites à fibres longues
Matériaux -- AllègementIndex. décimale : 668.4 Plastiques, vinyles Résumé : Thermoplastic fiber composites are employed today in a wide variety of fields of application thanks to their short processing time and the high automation capability of the production process. The goal of a research project was to eliminate the intermediate step of producing a semi-finished product and at the same time to achieve improved mechanical properties through the partial use of long and endless fibers. Note de contenu : - Preceding tasks
- GMT, LFT and EFT : state of the art and optimization potential
- LFT production from rovings
- LFT transport with intermediate storage
- Preceding molding trials
- Production of demonstratorsEn ligne : https://drive.google.com/file/d/1KTwKp4b6HHxgeVrHnU0MYGomUbRxEgRS/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22658
in KUNSTSTOFFE INTERNATIONAL > Vol. 104, N° 12 (12/2014) . - p. 42-45[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16737 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : A question of balance : Optimizing component characteristics by means of runner modifications with the "melt-flipper technology" Type de document : texte imprimé Auteurs : Cristoph Hinse, Auteur ; Marc Kurz, Auteur Année de publication : 2015 Article en page(s) : p. 18-19 Langues : Anglais (eng) Catégories : Matières plastiques -- Moulage par injection
Matières plastiques dans les automobiles
Moulage par injection -- Défauts
RhéologieIndex. décimale : 668.4 Plastiques, vinyles Résumé : Rheological melt control - Ever since its beginnings, injection molding technology has seen great advances and countless innovations, with the result that the choice and efficiency of processing methods, materials, and available control equipment has increased continuously. Nonetheless, many of the problems already faced by plastics processing pioneers have not yet been solved. Note de contenu : - Analysis of flow behavior in the runner system
- What influences the melt flow ?
- Notable increases in production performanceEn ligne : https://drive.google.com/file/d/1kdH-IuEbXwjuneGY6Xh0md5CRInX1iVU/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24111
in KUNSTSTOFFE INTERNATIONAL > Vol. 105, N° 5 (05/2015) . - p. 18-19[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17222 - Périodique Bibliothèque principale Documentaires Disponible Simulating reaction injection molding processes / Bert Neuhaus in KUNSTSTOFFE INTERNATIONAL, Vol. 100, N° 5/2010 (05/2010)
PermalinkSuccessful 3-D simulation of decorative parts / Cristoph Hinse in KUNSTSTOFFE INTERNATIONAL, Vol. 97, N° 11/2007 (11/2007)
PermalinkThe parts forecast for tomorrow / Cristoph Hinse in KUNSTSTOFFE INTERNATIONAL, Vol. 102, N° 5 (05/2012)
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