Investigation of the <scp>CFRP</scp> Lamination Process and Mechanical Properties Based on Dynamically Coupled Magnetic Field Induction Heating

ABSTRACT In the fabrication of thermoplastic carbon fiber‐reinforced composite materials (CFRTP), electromagnetic induction technology can significantly improve lamination efficiency, making it a key technology for expanding its application scope and reducing production costs. However, due to the limitations of current induction heating methods in terms of temperature‐field uniformity, this paper proposes a dynamic, coupled magnetic‐field induction‐heating technology. By utilizing magnetic field self‐coupling and dynamic regulation techniques, the number and location of the internal heating zones in the material can be adjusted, thereby expanding the heated areas and improving the overall temperature field uniformity. Based on the macro–micro structure‐performance correlation mechanism, this paper establishes a bridge model from the material's microstructure to macroscopic properties. According to the magnetic field coupling characteristics, the coupling relationship between the magnetic field distribution and the temperature field is explored. Additionally, a model is built to establish the correspondence between the material's temperature field and phase crystallinity using crystallization dynamics equations, followed by an analysis of the relationship between crystallinity and the material's mechanical properties.