Study on ductile-mode mirror grinding of SiC ceramic freeform surface using an elliptical torus-shaped diamond wheel

- An accurate form-truing of elliptical diamond wheel-profile is developed.
- The ductile-mode grinding depends on grinding wheel profile.
- Elliptical wheel-profile decreases surface roughness by 34% and form error by 58%.
- Increasing elliptical torus eccentricity enhances mirror grinding efficiency.