Fig. 1. Technical route of sub-aperture grinding

Fig. 2. Principle of generating method grinding

Fig. 3. Simulation of grinding trajectory by generating method

Fig. 4. Schematic diagram of sub-aperture generating method grinding

Fig. 5. Simulation of grinding trajectory using sub-aperture generating method

Fig. 6. Schematic diagram of shaft system of grinding machine

Fig. 7. Schematic diagram of sub-aperture grinding shaft system

Fig. 8. Schematic diagram of grinding wheel on edge

Fig. 9. Schematic diagram of spherical radius error compensation grinding

Fig. 10. Machining process and measurement results of spherical radius error compensation

Fig. 11. Schematic diagram of machining hyper-hemisphere by variable radius grinding method

Fig. 12. Variable feed rate test curve

Fig. 13. Experiment and results of sub-aperture grinding hemisphere and hyper-hemisphere