Study on grinding deformation of Al2O3-TiC slender bar

The deformation of brittle and hard material slender bar has great significance in contour grinding process. In this paper, the grinding deformation for Al₂O₃-TiC slender bar was studied. Diamond lapping film and adhesive mounting method were applied in the experiments. The influences of grinding pressure, grinding speed and stress on deformation were discussed in detail based on the theoretical analysis and the measurement of straightness in different conditions. The bend deformation goes up with the increase of grinding pressure and speed. The internal stress will bring large deformation after grinding. Releasing the stress will improve the deformation. Experiments shown that releasing the stress two-thirds at a proper condition before final grinding can achieve the deformation below 1000 nm. Employing lapping film and adhesive mounting method in optimal condition, the Al₂O₃-TiC slender bar deformation in grinding can be controlled.