<p>Carbon-carbon composites (C/Cs) are widely used in aerospace applications due to their excellent properties. Grinding is essential for achieving precise thickness reduction and high-quality surface finishing. However, conventional rigid grinding tends to induce surface damage, whereas robotic flexible grinding faces the challenge of time-varying tool wear, which compromises the consistency of material removal depth (MRD).This paper develops a material removal model considering the time-varying wear of grinding tool and proposes a grinding parameter optimization strategy to achieve stable and consistent surface quality. First, the geometric contact characteristics between the tool and the workpiece were analyzed, and a contact force model was established. Subsequently, the wear coefficient was expressed as a dynamic function of grinding time, and a material removal contour model was constructed based on the Preston equation. Using this model, grinding parameters were optimized by minimizing the deviation between the predicted and desired MRD. The experimental results show that the predicted material removal contours correlate well with the actual contours, with the coefficient of determination exceeding 0.9 and a maximum relative error of 8.15% in removal depth. Using the optimized grinding parameters effectively compensates for grinding tool wear. With a expected MRD of 30&#xa0;μm, the maximum relative error is only 9.33%, significantly improving the consistency of material removal.</p>