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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 gazIndex. 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 : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31185
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 9 (09/2018) . - p. 57-59[article]Réservation
Réserver ce documentImproved testing of continuous fiber-reinforced plastics / Henrik Schmidt in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 3 (03/2015)
[article]
Titre : Improved testing of continuous fiber-reinforced plastics : Taking into account the influence of strain rate in characterizing fiber-reinforced polymer composites Type de document : texte imprimé Auteurs : Henrik Schmidt, Auteur ; Ulrich Endemann, Auteur Année de publication : 2015 Article en page(s) : p. 12-17 Langues : Anglais (eng) Catégories : Composites à fibres -- Propriétés mécaniques
Contraintes (mécanique)
Essais (technologie)
Essais dynamiques
Fibres continuesIndex. décimale : 668.4 Plastiques, vinyles Résumé : A special test method has been developed that allows the influence of strain rate on the properties of fiber-reinforced plastics (FRP) to be systematically studied. In this way, material data can be determined for material models required to simulate the properties of lightweight components for automotive applications. Note de contenu : - From test specimen preparation to material data
- Material know-how determines testing programEn ligne : https://drive.google.com/file/d/136kDd5_fBzuPoV2f6zJ_OMVTJkQRRht7/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23520
in KUNSTSTOFFE INTERNATIONAL > Vol. 105, N° 3 (03/2015) . - p. 12-17[article]Réservation
Réserver ce document