Abstract: Fiber-reinforced composites (FRC) with high specific strength and stiffness, have become the preferred material for weight reduction of aerospace equipment due to their ability to integrate design and manufacture of material structure and performance. Precision grinding is a necessary machining method to ensure assembly tolerance and accuracy after CFRP forming. The high-quality and low-damage grinding of FRC has become a focus of research and attention in both academia and industry. Grinding force modeling is crucial for effectively controlling FRC machining damage and ensuring surface integrity. Firstly, the study reveals the grinding material removal mechanism dominated by brittle fracture on different FOAs and woven surfaces of ceramic based and resin based FRCs. Secondly, the geometric reconstruction of the grinding wheel and the FRC material model are analyzed, and the force modeling approachs of FRCs for different grinding methods are reviewed. Simultaneously, the error comparison and source analysis of predictive models are carried out. The influence of grinding parameters and FOAs on grinding force is summarized. Furthermore, the grinding force control process strategies including ultrasonic vibration, optimized design of grinding wheels, minimum quantity lubrication, and laser assistance are reviewed, and various strategies are compared for their ability to reduce grinding force. Finally, the application expansion and research gap of FRC grinding material removal mechanical behavior and mechanical modeling are discussed, providing technical support and theoretical guidance for the industry and academia.

Key words: fiber-reinforced composites, grinding, mechanical model, ceramic matrix, resin matrix