Accueil
Détail de l'auteur
Auteur Michael Rieck |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
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
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 22447 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : Staying grounded : Fiber reinforcement minimizes warpage in large area additive manufacturing Type de document : texte imprimé Auteurs : Frederike Schwartz, Auteur ; Michael Rieck, Auteur Année de publication : 2023 Article en page(s) : p. 82-85 Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Gauchissement (matériaux)
Impression tridimensionnelle
Polyamide 11
Polyamide 6
PolypropylèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : In additive manufacturing the material selection plays an important role for producing dimensionally accurate parts. Akro-Plastic developed a method to quantitatively assess warpage in additive manufacturing with pellets, which shows the influence of the material composition and the process parameters in an application-oriented manner. Note de contenu : - Warpage takes effect during the process
- Manufacturing-oriented quantification of warpage
- Carbon fiber reduces warpage effectively
- Importance of processing parameters
- Fig. 1 : Warpage can already be an issue in the build process
- Fig. 2 : Dimensions of the test specimen and method of evaluation
- Fig. 3 : Image processing for the computer-aided evaluation of warpage
- Fig. 4 : Carbon fibers reduce warpage more than glass fibers
- Fig. 5 : The warping behavior can be optimized by the choice of polyemr and fiber content
- Fig. 6 : Fiber orientation is crucial for warpage and can be influenced via the process
- Equation 1 : Determination of the warp-indexEn ligne : https://drive.google.com/file/d/1IxzWf4l708g9bIkz0YWxc3gMPLKpxptq/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40562
in PLASTICS INSIGHTS > Vol. 113, N° 8 (2023) . - p. 82-85[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24338 - Périodique Bibliothèque principale Documentaires Disponible