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

M. Russello; G. Catalanotti; S. C. Hawkins; B. G. Falzon

doi:10.1177/00219983221138952

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

M. Russello, G. Catalanotti, S. C. Hawkins, B. G. Falzon

Western Sydney University

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	79-94
Number of pages	16
Journal	Journal of Composite Materials
Volume	57
Issue number	1
DOIs	https://doi.org/10.1177/00219983221138952
Publication status	Published - Jan 2023

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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.",

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AU - Catalanotti, G.

AU - Hawkins, S. C.

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AB - 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.

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

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