Combining the best of two polymer worlds / David Becker in KUNSTSTOFFE INTERNATIONAL, Vol. 106, N° 12 (12/2016)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 106, N° 12 (12/2016) . - p. 49-51 Titre : Combining the best of two polymer worlds : Thermoformable acrylic resin systems for large-scale production Type de document : texte imprimé Auteurs : David Becker, Auteur ; Gilles François, Auteur ; Virginia Bozsak, Auteur ; Peter Mitschang, Auteur Année de publication : 2016 Article en page(s) : p. 49-51 Langues : Anglais (eng) Catégories : Composites -- Soudage Composites à fibres Composites à fibres -- Recyclage Composites à fibres -- Thermoformage Matières plastiques -- Recyclage Matières plastiques -- Soudage Polyacryliques Temps de cycle (production) Thermodurcissables Index. décimale : 668.4 Plastiques, vinyles Résumé : Thermosets offer high mechanical performance and, thanks to their low initial viscosity, permit the efficient series manufacture of composite parts by resin transfer molding. The main advantage of thermoplastics is that they can be thermoformed, welded and recycled. These advantages are now combined in a newly developed thermoplastic acrylic resin system, which offers new possibilities for the production of fiber-reinforced composites with short cycle times. Note de contenu : - Thermoplastic resin system for composites - Concepts for large-scale manufacturing - Thermoforming, recycling, and welding En ligne : https://drive.google.com/file/d/1DFMm8aEZ4bDToOuQP2dLF3QrD0AitUgC/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27433 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
18545	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Developments in electromagnetic induction welding of composites / Elisa Buso in JEC COMPOSITES MAGAZINE, N° 156 (05-06/2024)  

[article]  inJEC COMPOSITES MAGAZINE > N° 156 (05-06/2024) . - p. 31-35 Titre : Developments in electromagnetic induction welding of composites Type de document : texte imprimé Auteurs : Elisa Buso, Auteur Année de publication : 2024 Article en page(s) : p. 31-35 Langues : Anglais (eng) Catégories : Composites -- Soudage Induction électromagnétique Soudage -- Appareils et matériels Soudage par induction Thermodurcissables Index. décimale : 668.4 Plastiques, vinyles Résumé : For over 30 years, Sinergo has developed special electromagnetic induction machines. In the last 10 years, the focus has been on the technique of heating composite materials by means of electromagnetic changes to weld several parts. In particular, research is aimed at theoretical investigation and simulation of the welding process on different types of materials, experimental tests in laboratories to validate results, and finally the design and construction of industrial machinery. Note de contenu : - SICE ARM 250 plant - Induction welding advantages fields of application and facts - The advantages of CIW : High mechanical properties - High production rate - Simplicity and cost-effectiveness of welding tools - High level of automation - Low investment costs - Absence of consumables require y for the process - Drawbacks of CIW - Cetma-Singergo solution to optimise CIW - Thermosetting - Fig. 1 : Simulation of electromagnetic field and induced temperature - Fig. 2 : SICE 1, the first Sinergo CIW machine working head detail - Fig. 3 : Micrograph of the cross-sectional view of an adherend where the thermal gradient was not controlled during induction heating operations - Fig. 4 : Simulation of the thermal gradient achieved in the thickness of the superficial adherend ; a) possible overheating of the surface, b) no surface overheating Cetma-Sinergo technology - Fig. 5 : Thermoplastic CIW - Fig. 6 : Welded door in the H2020 TOD (thermoplastic on door) research project ; material : PPS/carbon fabric ; welded components : outer skins ; internal reinforcement elements - Table 1 : Examples of matrices and reinforcements En ligne : https://drive.google.com/file/d/1Xz1fcERVOer7zWGayGgyxrjC04L5tHr8/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41133 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24597	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Faster and better welding / Stefan Mochev in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 9 (09/2018)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 9 (09/2018) . - p. 57-59 Titre : Faster and better welding : Tools adaption reduces process times and improves weld quality Type de document : texte imprimé Auteurs : Stefan Mochev, Auteur ; Ulrich Endemann, Auteur Année de publication : 2018 Article en page(s) : p. 57-59 Langues : Anglais (eng) Catégories : Composites -- Soudage Composites à fibres de verre Matières plastiques -- Soudage Polyamide 66 Soudage par gaz Index. décimale : 668.4 Plastiques, vinyles Résumé : Hot gas welding has now become an established alternative to vibration and infrared welding. The reasons for this are the mechanically and visually excellent welds obtained and the low-emission, particle-free process. A further development of the welding tool avoids long process times and reduces material degradation. Note de contenu : - Improvements demonstrated in practice - Focus on the weld strength - Fig. : A relatively minor modification to the hot gas tool not only reduces process time but improves weld quality at the same time - Fig. 1 : The gas outlet zone of a conventional hot gas tool (left) and modified tool (right) with (a) and without (b) tubes as hot gas nozzles - Fig. 2 : Comparison between the melt layer thicknesses obtained with a conventional and a modified hot gas tool shows the reduced plasticizing time at a glance (material : Ultramid B3WG6 GPX, process medium : nitrogen, welding rib width : 4mm) - Fig. 3 : Photos of melted welding ribs with a homogeneous structure due to the new gas channels (a) and crater-like structures opposite the hot gas nozzles in a conventional tool (b, actual component) - Fig. 4 : With the modi¬fied tool, melt layer thickness is virtually the same for different distances between the hot gas nozzles and welding rib, which means a wider processing window (heating element temperature: 500°C, material: Ultramid A3WG6, process medium: nitrogen, welding rib width: 4mm) - Fig. 5 : Comparison between the weld tensile strengths of two different materials achieved with a conventional and a modified hot gas tool (process medium : nitrogen, welding rib width : 4 mm) En ligne : https://drive.google.com/file/d/1K3-D_dar3NwmJRMoUpYGrLSrhm-DFXur/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31185 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
20202	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Quality-controlled continuous induction welding of CFRP composites / Stephan Becker in JEC COMPOSITES MAGAZINE, N° 101 (11-12/2015)

[article]  inJEC COMPOSITES MAGAZINE > N° 101 (11-12/2015) . - p. 40-43 Titre : Quality-controlled continuous induction welding of CFRP composites Type de document : texte imprimé Auteurs : Stephan Becker, Auteur ; Dennis Maurer, Auteur ; Miro Duhovic, Auteur ; Peter Mitschang, Auteur Année de publication : 2015 Article en page(s) : p. 40-43 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites -- Soudage Composites à fibres de carbone Qualité -- Contrôle Simulation par ordinateur Soudage par induction Stratifiés Index. décimale : 668.4 Plastiques, vinyles Résumé : A simulation-based user interface for automated, continuous induction welding of thermoplastic fibre-reinforced polymer composites allows end-users to optimize process parameters and ensure quality control in an efficient way. Note de contenu : - Process design - Advance through process simulation - Process simplification for the end-user - Verification of the user interface - FIGURES : 1. Schematic of the continuous induction welding process and temperature development in the joining zone and on the laminate surface - 2. Crucial parameters of the continuous induction welding process - 3. Simulation test-bed setup for the continuous induction welding of two materials and their corresponding physics interactions - 4. Full weld width surface temperature plots for the top surface without and with air jet cooling and for the joint interface surface without and with air jet cooling, welding speed 0.18 mm/min, fixed coil coupling distance 2 mm, coil to roller offset distance 60 mm, and volume flow of air jet cooling 304 litres/min (based ondata from Rudolf and Moser) - 5. Process diagram for a coll-roller distance of 35 mm - 6. Overview of the user interface developed for continuous induction welding - 7. Comparison of simulated and measured tensile shear strength - 8. Automatable induction welding system for the continuous induction welding of carbon-fibre-reinforced thermoplastics and the demonstrator joined using the user surface - TABLES : Errors between FEA and test data Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25946 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
17617	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 4 / 4)