Focused Inductive Heat Generation in Weld Zones of Carbon Fibre Laminates by Magnetic Field Manipulation and Carbon Fibre Susceptors

Kurzfassung

Research is done into alternative composite joining techniques, as contemporary methods require extensive work. The application of induction welding, one of the three most researched composite welding techniques, results in less labour and defects compared to mechanical fastening. The downside of induction welding is that the heating rate is reciprocal to the distance between carbon fibres and inductor and thus the weld zone cannot be heated exclusively. As a yielding surface leads to an imperfect weld, the aim of this research was identifying induction heating techniques to selectively heat the weld zone, such as manipulation techniques of the magnetic field and application of susceptors from carbon fibre reinforced thermoplastic. In addition, a verification for lightning strike protection (LSP) is performed.