Morphology and tensile properties as a function of welding current in thermoplastic induction welds / W. P. Ma in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 5 (2021)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 36, N° 5 (2021) . - p. 499-507 Titre : Morphology and tensile properties as a function of welding current in thermoplastic induction welds Type de document : texte imprimé Auteurs : W. P. Ma, Auteur ; H. C. Bu, Auteur ; F. Y. Wang, Auteur ; H. Y. Yang, Auteur ; Y. Xu, Auteur ; X. H. Zhan, Auteur Année de publication : 2021 Article en page(s) : p. 499-507 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Morphologie (matériaux) Polyéther éther cétone Polymères -- Propriétés mécaniques Polymères -- Propriétés thermiques Soudage par induction Traction (mécanique) Index. décimale : 668.4 Plastiques, vinyles Résumé : Compared to other conventional joining methods, induction welding offers the superiority of avoiding mechanical degradation and satisfying the need for weight reduction in the aircraft industry. In this paper, a metal mesh was adapted as an induction component in the induction welding of polyetheretherketone (PEEK) with various currents. The effect of welding current on the microstructure and mechanical properties of the induction welding joint was further investigated. The results indicate that induction welding joints with the narrow thickness of the fusion zone and high tensile strength can be attained in the welding current range of 7.05 A to 11.05 A. However, when the current exceeds 13.91 A, the excessive heat input leads to the unsteady flow of PEEK or even thermal oxidative degradation and thermal decomposition, which increases the thickness of the fusion zone and reduces the tensile strength of the joint. In addition, the principal fracture mode presents cohesive failure, thereby promoting the tensile strength of the joint. Note de contenu : - EXPERIMENTAL METHODS : Materials and apparatuses - Design of experiment - Specimen preparation - RESULTS AND DISCUSSION : Weld morphology - Tensile properties - Table 1 : Thermal performance of PEEK - Table 2 : Test parameters of PEEK induction welding - Table 3 : The tensile force of Nos. 1 to 4 (N) DOI : https://doi.org/10.1515/ipp-2020-4016 En ligne : https://drive.google.com/file/d/1Dc5KCAgR5yqQaaXWUJ7kQ_tJ1lbfgVI6/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36517 [article]

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