Controlling the edge effect using a bypass conductor for induction welding of carbon fibre thermoplastic composites

Conference paper (2018)

Authors

M. Hagenbeek Aerospace Manufacturing Technologies - Aerospace Engineering
J. Vila Bramon Structural Integrity & Composites - Aerospace Engineering
I.F. Villegas Aerospace Manufacturing Technologies - Aerospace Engineering
Research Group
Aerospace Manufacturing Technologies (Aerospace Engineering) (TU Delft)
Copyright: © 2018 M. Hagenbeek, J. Vila Bramon, I.F. Villegas
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Published Date

2018

Language

English

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Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Aerospace Manufacturing Technologies

Abstract

Carbon fibre thermoplastic composites can be induction welded thanks to the electrical conductive nature of carbon fibre. Due to a locally contrained current flow more heat is generated at the edges of the composites. To counteract this so called edge effect a highly conductive material is attached to the edge to create an electrical bypass. The effect of a thin copper bypass has been assessed by performing induction heating experiments on single and double carbon fibre PPS composite coupons. The induction parameters where chosen such that without a bypass the edge would locally reach the melting temperature. The results clearly show the ability of the copper bypass to reduce the edge effect and prevent overheating at the edge.