Induction heating of continuous carbon-fibre-reinforced thermoplastics

Modeling and experimental investigation of induction welding of thermoplastic composites and comparison with other welding processes

“…The electrical conductivity of the adherends was measured using a setup similar to that of Rudolf et al 24 A four wires Ohms measurement was carried out. A range of electrical conductivities was observed, and variations were obtained from one adherend to another adherend.…”

“…On the other side, Mitschang et al 11 demonstrated that carbon fiber with or without resin heated up equally, meaning that dielectric heating would be less important than fiber Joule heating and contact resistance at junctions. It is interesting to mention that the methodology for the measurement of the electrical resistance of the adherend proposed by Rudolf et al, 24 which was also used by Mitschang et al, 11 takes into account both the fiber resistance and the junction resistance. Thus, by using such a measurement as an input value, fiber Joule losses and junction Joule losses were implicitly included in the models.…”

Welding methods for joining thermoplastic polymers for the hermetic enclosure of medical devices

“…This method is particularly suited to thermoplastics with carbon-fibre reinforcement due to the presence of electrically conductive carbon fibres, and therefore it requires no additional material at the joint interface [94,95]. Most thermoplastics can be welded using this technique and strong welds can be achieved [41].…”

The research of heating efficiency of different induction heating systems

“…Induction heating systems consist of an inductor and a power source with a link of increased frequency [29][30][31]. By varying the frequency of commutations, it is possible to regulate the power of the IHS, and consequently the temperature and volume of the pumped liquid [32][33][34].…”