Investigations on the axial cutting force during drilling of carbon fiber composite material

Carbon fiber composite materials have been widely applied in national defense fields, including aviation and aerospace, as well as civilian areas, such as automobile, electronic information, and high-speed machinery. During drilling, the cutting force significantly influences the workpiece machining quality and the insert service life. In this article, a simulation study using a polycrystalline diamond insert to drill carbon fiber composite materials was conducted in order to analyze the features of axial drilling force. Drilling experiments were carried out using various cutting parameters, and experimental results were compared to the simulation results. A regression analysis of the experimental data was made, and a cutting force model was constructed. The research results provide a foundation for the parameters optimization of carbon fiber composite material drilling processes.