Resistance welding of carbon fibre reinforced PEKK by means of CNT webs

M Russello, G Catalanotti*, SC Hawkins, BG Falzon

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Single lap shear specimens were manufactured using resistance welding of carbon fibre reinforced substrates by means of CNT web-based heating elements. Heating elements were manufactured by embedding the CNT web layers between layers of PEKK/glass fibre and connecting them to copper electrodes. An experimental campaign explored their electrothermal behaviour influencing the welding process. Single lap shear specimens were then welded at a pressure of 0.05 MPa and different levels of power and duration. An optimum bond was obtained with a specific power of 80–90 kW/m2 and a time of 150 s, achieving a shear strength of 30 MPa. Post-mortem analysis revealed that fracture propagated within the substrates. This work represents a further step in the integration of CNT web-based heating elements in an industrial welding process.

Original languageEnglish
Pages (from-to)79-94
Number of pages16
JournalJournal of Composite Materials
Volume57
Issue number1
Early online date10 Nov 2022
DOIs
Publication statusPublished - Jan 2023

Keywords

  • CNT web
  • fibre-reinforced thermoplastics
  • fusion bonding
  • resistance welding

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Resistance welding of carbon fibre reinforced PEKK by means of CNT webs'. Together they form a unique fingerprint.

Cite this