Papers by Author: Yan Shi Shi

Abstract: The grinding experiments of Quartz Fiber-Reinforced Quartz Composites（QFRQC） were conducted on MK9025 NC optical curve grinding machine. Grinding forces were measured by KISTLER dynamometer and the morphologies of the grinding surface were observed with Hatchi S-4800 SEM. In this paper, the effect of grinding orientation on the ground surface damage of QFRQC was discussed. Grinding orientation has a big influence on the ground surface damage. When grinding orientation is perpendicular to fiber orientation, the surface of the workpiece is poor; By contrast, when grinding orientation is parallel to fiber orientation, the surface of the workpiece is good; when grinding is on the fiber end-faces, the surface of the workpiece is best.

Abstract: The single factor experience of Fiber Reinforced Ceramic Matrix Composites (briefly named FCC) grinding was done on a NC optical curve grinding machine, and then the morphologie of the grinding surface was observed with an optical microscope. The effect of the grinding parameters, which include mainly grinding depth, abrasive grain size of diamond grinding wheel and grinding direction, on the grinding-induced surface damage of FCC was discussed, finally, the paper drew the conclusions that both increasing of grinding depth and increasing of abrasive grain sizes of diamond wheel can make the grinding-induced surface damage worse, and that different grinding directions also produce different effects on the grinding-induced surface damage.