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3D printing with pellet extruded plastics on metal / Thilo Stier in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 10 (2020)
[article]
Titre : 3D printing with pellet extruded plastics on metal : Plastic-metal hybrid cuts costs and time in additive manufacturing Type de document : texte imprimé Auteurs : Thilo Stier, Auteur ; Michael Rieck, Auteur ; Nicolai Lammert, Auteur Année de publication : 2020 Article en page(s) : p. 14-17 Langues : Anglais (eng) Catégories : Application directe sur le métal
Automatisation
Impression tridimensionnelle
Matières plastiques -- Propriétés mécaniquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Additive manufacturing processes count as future-oriented manufacturing techniques. Numerous studies and award-winning demonstrators underline the interest of the industry. Nevertheless, up to now there are only a few plastic-based applications with significant quantities. Today, screw-based additive manufacturing is a solution for the economic and technical challenges and has the potential for series production. Note de contenu : - Using strand shapes to systematically influence anisotropy
- Why does 3D printing plastics need metal ?
- Automated production of hybrid parts
- Approach to analyze the mechanical properties
- Mechanical properties at an optimal level
- Figure : The bicycle frame (600 g, produced in 80 min) is printed directly onto a metal sheet. This combination unites the advan-tages of two worlds
- Fig. 1 : Increasing nozzle diameters have a positive effect on the anisotropy of mechanical properties in the part
- Fig. 2 : Test set-up : variothermal fixture in production area of a SpaceA manufacturing unit, temperature load cycle and test specimen geometry
- Fig. 3 : Maximum load at different insert temperatures.This demonstrates the strong bond between plastic and metal over a wide temperature range
- Fig. 4 : Force-deformation chart of the tested specimens. The hybrid structure increases the stiff¬ness and strength compared to plastic-only test specimens
- Fig. 5 : Testing of the hybrid part: initial position (force applied to the metal component on the left, force applied to the plastic component on the right), maximum deflection of the test specimen and failure with fracture mode (insert temperature 175°C)
- Fig. 6 : Test in starting position (force application to the plastic component), maximum deflection of the test specimen and failure with fracture mode (insert temperature 220°C)
- Fig. 7 : A modular plant strategy allows scaling (here the largest model SpaceA 2000-500-5) and integration of all known automation conceptsEn ligne : https://drive.google.com/file/d/14nemu-jxXZ_7erYKNrAwjSThX4sH5rkD/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34934
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 10 (2020) . - p. 14-17[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22447 - Périodique Bibliothèque principale Documentaires Disponible All elements at a glance / Nicolai Lammert in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 1-2 (01-02/2017)
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Titre : All elements at a glance : A diversity of suppliers and physical make possible new business models and application scenarios for additive manufacturing Type de document : texte imprimé Auteurs : Nicolai Lammert, Auteur Année de publication : 2017 Article en page(s) : p. 9-13 Langues : Anglais (eng) Catégories : Automatisation
Construction modulaire
Impression tridimensionnelle
Innovations
Salons professionnels
Technique de la productionIndex. décimale : 668.4 Plastiques, vinyles Résumé : With K 2016 in Düsseldorf, Germany, and formnext in Frankfurt/Main, Germany, professionals with an interest in additive manufacturing had two opportunities last year to gain a sense of the spirit of innovation in the industry. One issue was particularly prominent: the increase in production efficiency. This improves the economy of using the different 3D printing processes. Note de contenu : - Robust processes as a basis for innovations
- Increasing plant variety based on open systems
- Composite plastics and reactive systems in FLM systems
- Alternative manufacturing concepts
- Flexible plant concepts for user-oriented integration into production workflows
- The factory of the future is based on modular systems
- Digital processing for rapid product development
- Successful practical implementation through process-oriented deploymentEn ligne : https://drive.google.com/file/d/1ZuTZ4fSwT-p1bZBS8vkAdDvt_l7-tEAB/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27915
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 1-2 (01-02/2017) . - p. 9-13[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18707 - Périodique Bibliothèque principale Documentaires Disponible 18814 - Périodique Bibliothèque principale Documentaires Disponible Dynamic temperature control in foam injection molding / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 106, N° 8 (08/2016)
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Titre : Dynamic temperature control in foam injection molding : Targeted improvement of the surface quality and foam structure distribution by dynamic mold temperature control Type de document : texte imprimé Auteurs : Christian Hopmann, Auteur ; Nicolai Lammert, Auteur ; Yuxiao Zhang, Auteur Année de publication : 2016 Article en page(s) : p. 47-51 Langues : Anglais (eng) Catégories : Mousses plastiques -- Moulage par injection
Température -- ContrôleIndex. décimale : 668.4 Plastiques, vinyles Résumé : Foamed components are gaining increasing importance, which is particularly relevant for aspects of lightweight construction and mobility. In the case of foam injection molding, it is known that the process must be combined with dynamic mold temperature control to achieve an attractive surface quality for use in visible areas. IKV in Aachen, Germany, has now demonstrated for the first time how this process also affects the mechanical properties and foam structures of the components. Note de contenu : - Comparison between external and internal dynamic mold temperature control
- Higher mold surface temperatures improve the surface quality
- Homogeneous foam structures in flow direction and in direction of the part thicknessEn ligne : https://drive.google.com/file/d/1VRTmYPSGiU5YR9uNkpTPR61NknYhscPW/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27074
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Code-barres Cote Support Localisation Section Disponibilité 18254 - Périodique Bibliothèque principale Documentaires Disponible Function-integrated lightweight construction for mass production / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 9 (09/2013)
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Titre : Function-integrated lightweight construction for mass production Type de document : texte imprimé Auteurs : Christian Hopmann, Auteur ; Andreas Neuss, Auteur ; Mathias Weber, Auteur ; Kai Fischer, Auteur ; Julian Schild, Auteur ; Lars Linnemann, Auteur ; Johannes Wunderle, Auteur ; Christos Karatzias, Auteur ; Nicolai Lammert, Auteur Année de publication : 2013 Article en page(s) : p. 75-80 Langues : Anglais (eng) Catégories : Composites -- Moulage par injection-réaction
Composites à fibres
Coupe
Matériaux -- Allègement
Matériaux -- Imprégnation
Moules d'injection
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
PréformesObjet constituant la majeur partie d’une pièce à fabriquer et qui nécessite un travail supplémentaire pour devenir une pièce finie. Ce terme s’utilise notamment pour le moulage, l’usinage, la taille d’outils en silex, la fabrication de fibre optique…
Production en sérieIndex. décimale : 668.4 Plastiques, vinyles Résumé : Reactive injection molding - The currently established production methods for fiber-reinforced plastic parts have technical and economic disadvantages which prevent their widespread industrial use. A new in-situ injection molding process enables automated, reproducible production of fiber reinforced thermoplastic parts without reworking in short cycle times and high quantities. Note de contenu : - Synergistic combination of liquid impregnation and injection molding process
- Innovative manufacturing cell for in-situ injection molding
- Preforms cut to size
- Cast polyamide produced below its melting temperature
- In-situ mold technology for production without reworking
- Handling and functionalization of the shin-guardPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20556
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Code-barres Cote Support Localisation Section Disponibilité 15505 - Périodique Bibliothèque principale Documentaires Disponible Hybrid manufacturing strategy for functionally integrated single parts / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 106, N° 11 (11/2016)
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Titre : Hybrid manufacturing strategy for functionally integrated single parts : IKV combines a completely automated plant for additive production with conventional production techniques Type de document : texte imprimé Auteurs : Christian Hopmann, Auteur ; Nicolai Lammert, Auteur Année de publication : 2016 Article en page(s) : p. 39-42 Langues : Anglais (eng) Catégories : Impression tridimensionnelle
Procédés de fabrication
Technique de la productionIndex. décimale : 668.4 Plastiques, vinyles Résumé : Additive manufacturing processes with their great potential for automation and functional integration promise to revolutionize the production of plastic products. Besides the well-known strengths, the processes also have deficits such as the attainable tolerances and surface properties as well as the unresolved question of the integration of inserts. A new hybrid concept of additive and subtractive production provides an approach for the economical production of function-integrated parts. Note de contenu : - Adequate surface quality through adapted post-processing
- Alternating integration of different procedures
- Hybrid manufacturing concept
- Scalable output by screw-based extruder technology
- FIGURES : 1. The specimen contains various segments with different angles between the component surface and the building plane - 2. The surface structures of the individual component regions (with different angles) are shown here as a topographic image after the individual processing steps - 3. The component produced by the FLM method shows the differences in the surface quality after the individual finishing steps (grinding and polishing) and the final painting - 4. The gloss values measured with a spectrophotometer increase along the chosen fineness of the post-processing steps - The hybrid production cell enables the economical individual production of functionally integrated plastic products - 6. First throughput measurements based on the used extruder technology illustrate the scaling potential - 7. The demonstrator component illustrates the geometrical possibilities of screw-based additive manufacturingEn ligne : https://drive.google.com/file/d/1dtSiUyEtXmqNzWcuUNNFExLBoHnWU7aS/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27513
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Code-barres Cote Support Localisation Section Disponibilité 18493 - Périodique Bibliothèque principale Documentaires Disponible Industry 4.0 saddles up / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 106, N° 9 (09/2016)
PermalinkLayer-by-layer from granulate to part / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 11 (11/2018)
PermalinkMold makers are raising their game / Nicolai Lammert in KUNSTSTOFFE INTERNATIONAL, Vol. 104, N° 11 (11/2014)
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