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Resistance welding of thermoplastic composites with a nanocomposite heating element

David Brassard, Martine Dubé and Jason Robert Tavares

Article (2019)

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Cite this document: Brassard, D., Dubé, M. & Tavares, J. R. (2019). Resistance welding of thermoplastic composites with a nanocomposite heating element. Composites Part B: Engineering, 165, p. 779-784. doi:10.1016/j.compositesb.2019.02.038
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Abstract

In this study, we propose a new heating element (HE) for the resistance welding of thermoplastic composites. This HE is made of polyetherimide (PEI), rendered electrically conductive by the addition of 10% wt. multi-wall carbon nanotubes (MWCNT) (conductivity of 0.79 S cm-1). The new HE was successfully used to weld carbon fibre/poly (ether ketone) (CF/PEEK) laminates in a single lap shear configuration, leading to a lap shear strength of up to 19.6 MPa. Observations of the fracture surfaces revealed a cohesive failure mode within the nanocomposite HE and non-uniform heating over the weld area. It is believed that PEI/MWCNT HE present an interesting alternative to current HE, although more work is needed to improve the temperature homogeneity over the weld area.

Uncontrolled Keywords

Resistance welding; Polymer–matrix composites (PMCs); Thermoplastic resin; Joints/joining;

Open Access document in PolyPublie
Subjects: 1800 Génie chimique > 1800 Génie chimique
Department: Département de génie chimique
Research Center: CREPEC - Centre de recherche sur les systèmes polymères et composites à haute performance
Funders: ArianeGroup, CREPEC
Date Deposited: 23 Jan 2020 15:19
Last Modified: 17 Feb 2020 13:46
PolyPublie URL: https://publications.polymtl.ca/4101/
Document issued by the official publisher
Journal Title: Composites Part B: Engineering (vol. 165)
Publisher: Elsevier
Official URL: https://doi.org/10.1016/j.compositesb.2019.02.038

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