Abstract: Three key influencing factors of different resin raw materials, setting time of resin and radial position of abrasive layer are investigated for the poor stability of grinding properties of superhard resin bonding abrasives, and a resin diamond grinding wheel is used to grind a cemented carbide in test. The results show that the phenolic resin raw materials have a great influence on the grinding performance of grinding wheel, the ordinary resin is not suitable for carbide grinding, the heat-resistant resin is suitable for deep grinding, and the toughening resin is suitable for micro-depth cut grinding. The store time of phenolic resin has a certain influence on grinding performance, the grinding ratio decreases slowly with the extending of store time; and the radial position of abrasive layer has a special effect on the grinding performance. When the abrasive layer is above 1.0 mm in thickness, the grinding ratio changes little; when the abrasive layer is below 1.0 mm in thickness, the grinding ratio decreases obviously. Refining of making and grinding technologies of super-hard resin grinding wheel is beneficial to improve the stability of grinding performance. Key

Key words: resindiamondgrindingwheel, cementedcarbide, grindingstability, grindingratio