Glass fiber-reinforced polyphenylene sulfide made weldable / Frank Brunnecker in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 7 (2020)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 7 (2020) . - p. 47-49 Titre : Glass fiber-reinforced polyphenylene sulfide made weldable : Novel laser welding technology can also be used for higher filled PPS types Type de document : texte imprimé Auteurs : Frank Brunnecker, Auteur ; Christian Ebenhöh, Auteur ; Daniel Bierl, Auteur ; Jürgen Brettschneider, Auteur ; Guido Pengemann, Auteur ; Uwe Behle, Auteur Année de publication : 2020 Article en page(s) : p. 47-49 Langues : Anglais (eng) Catégories : Composites à fibres -- Soudage Composites à fibres de verre Matières plastiques -- Soudage Polysulfures de phénylène Soudage laser Index. décimale : 668.4 Plastiques, vinyles Résumé : Especially in the automotive industry, high-performance polymers are increasingly replacing assemblies made of metal and conventional engineering plastics, but their properties often present new challenges for joining technology. With novel laser system technology, even demanding materials can be joined. Note de contenu : - PPS connected in a process-safe way - Laser welding of glass fiber filled materials - Analysis of differently filled types - Comparison of joining methods - Figure : Cross-section of a weld seam : The microsection of the seam shows a joining zone and charac-teristic melt flow for quasi-simultaneous welding - Fig. 1 : Water pumps such as Bühler Motor’s bFlow C5A-60x feature components made of polyphenylene sulfide in highly stressed areas - Fig. 2 : Laser-welded PPS sample plates: The black plate contains particle carbon black and therefore absorbs the laser radiation - Fig. 3 : Laser transmission of DIC.PPS at λ = 980 nm and a material thickness of 1 mm - Fig. 4 : Average pull-off forces of laser-welded DIC.PPS samples (n=3) - Fig. 5 : Average pull-off forces depending on the welding process, DIC.PPS FZ-2140 (n=3) En ligne : https://drive.google.com/file/d/1LfnIsniYc7Q-MLYvI5xxd0-vK0a9_EVS/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34818 [article]

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Laser welding re-though / Frank Brunnecker in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 5 (2021)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 5 (2021) . - p. 31-33 Titre : Laser welding re-though : Increasing process efficiency through advaned quasi-simultaneous welding Type de document : texte imprimé Auteurs : Frank Brunnecker, Auteur ; Christian Ebenhöh, Auteur Année de publication : 2021 Article en page(s) : p. 31-33 Langues : Anglais (eng) Catégories : Assemblages (technologie) Matières plastiques -- Propriétés mécaniques Matières plastiques -- Soudage Polybutylène téréphtalate Polycarbonates Soudage laser Soudures Index. décimale : 668.4 Plastiques, vinyles Résumé : Evosys Laser GmbH has patented a new variant of laser welding that combines two laser beam sources and wavelengths. This approach is not limited to contour welding, but is particularly aimed at significantly reducing welding times and extending the process window in quasi-simultaneous welding. Note de contenu : - Better process control through selective energy input - Test setup with two plates - Experiment to reduce the welding time with plates made of PBT - PC in practical test for weld seam strength - Welding time is halved, tensil strength increases by one third - Fig. 1 : Test setup and welding configuration for advanced quasi-simultaneous welding - Fig. 2 : The number of overruns can be halved with AQW, thus ensuring a shorter welding time - Fig. 3 : The highest tensile strength with AQW is achieved at 75 % primary radiation – and is one third higher compared to the standard process En ligne : https://drive.google.com/file/d/1LGWQjEdyOBQszMmoXttv-I9yZc_H1qeb/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36165 [article]

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