2 results about "Grind" patented technology

The invention discloses a grinding process for optical sapphire crystal basal piece. It includes steps of coarse grind, precise grind and polishing. The one time qualification rate is more than 98.5%, the surface coarse is less than 0.3 nanometer, the flatness rate is less than 5 micrometer, the flatness is minus and plus 0.025 millimeters, the thickness size difference is less than plus and minus 0.025 millimeters.

The invention relates to a grinding tool design auxiliary system, through an emergency control electronic system of a grinding tool, an actuator and a shielding module which are independent of a central processing unit carry out shielding, and the grind tool design auxiliary system is flexible and convenient to broaden.