Fig. 1. MCF deep hole polishing principle

Fig. 2. Four different methods of magnetizing magnets

Fig. 3. Distribution of the magnetic field mode on the inner wall of the hole under different magnetization methods

Fig. 4. Magnetic field model

Fig. 5. Distribution of the magnetic field mode on the inner wall of the hole under different magnet spacings

Fig. 6. Effect of magnet spacing on magnetic field mode

Fig. 7. Velocity field distribution of hole inner wall under

Fig. 8. Effect of polishing speed on shear rate and pressure

Fig. 9. Effect of polishing gap on shear rate and pressure

Fig. 10. MCF polishing tool head test device

Fig. 11. Effect of different polishing methods on surface

Fig. 12. Effect of polishing time on surface morphology

Fig. 13. Surface roughness and material removal rate under different polishing parameters