Grinding YG8 cemented carbide with resin bond grinding wheels made of diamond agglomerate abrasive

To explore the grinding performance of diamond agglomerate abrasive in resin bonded grinding wheels, we prepared ceramic bond diamond agglomerate abrasives with diamond concentrations of 150%, 200%, and 250%, respectively on ZLB-60 rotary granulator. The results show that the single-particle static pressure strength of diamond agglomerate abrasives was 61 N, 65 N, 36 N. We selected the agglomerate abrasive with a diamond concentration of 200% and the single-grain diamond with the same original particle size to prepare resin bond diamond grinding wheels with a diamond concentration of 100%, and conduct a YG8 cemented carbide grinding test on the grinding wheels through a self-made grinding platform. Results indicate that when the volume fraction of polycrystalline abrasive is 30%, the resin bond diamond wheel has the best grinding performance. The grinding ratio is 145.11 and the grinding efficiency is 13.64 g/h, which are increased by 152% and 40%, respectively when compared with those of the single-grain diamond wheels.