Polishing Progress of Elastic Abrasive Based on Microporous Silicone Gel Composites

To keep the positional offset of the abrasive as low as possible during grinding and polishing process and reduce the surface damage, soft elastic abrasive based on microporous silica-based were designed. The contact mechanics behavior and friction and wear theory on elastic abrasive were analyzed during use by contact mechanics and dynamic friction method. It was found that the modified reinforced particles of silicone gel/SiC composites with a network chain structure interact with matrix through interface phase, enhancing the mechanical properties of the composite. It's shown that abrasive itself compression performance had an effect on surface quality by the friction and wears experiments. If the qualities of abrasive grains meet some standards, ideal rough surface could be obtained. Self-sharpening of the abrasives can significantly improve locally uneven force in the working process. The optimal mass percent of abrasive grains is 59.3% in this paper. If abrasives work under compressive stress, the movement between abrasive grains and the matrix will force the micro convex shape changes on the workpiece surface be consistent with movement direction, defined as plastic deformation grinding wear.