Experimental Study on Micro-scale Grinding of 2.5D Cf/SiC Composites

In order to improve the surface quality of 2. 5D Cf /SiC composites in micro‑grinding，a three‑factor and five‑level micro‑grinding orthogonal experiment was carried out with 500# diamond abrasive and 0. 9 mm diameter electroplated micro‑grinder. The influence of micro-grinding speed vs，grinding depth ap and feed speed vw on the grinding performance evaluation parameters（grinding force，surface roughness and surface morphology）was analyzed by range and variance. The variation law of grinding performance evaluation parameters with process parameters was analyzed through the test results at different levels. The results showed that the grinding depth has the greatest influence on grinding performance，and the feed speed has the least influence. When the grinding depth and feed speed increase，the surface roughness and grinding force gradually increase，and there are more surface defects；when the micro‑grinding speed is increased，the surface roughness and grinding force gradually decrease，the surface morphology is flat and uniform，and there are fewer defects. © 2024 Northeast University. All rights reserved.