New grinding and polishing method for super hard and brittle workpiece

A new grinding and polishing method for a super hard and brittle workpiece is characterized by mainly comprising the steps that firstly, diamond abrasive aggregate is prepared; secondly, pressing and forming are performed; and thirdly, grinding and polishing liquid is prepared to grind and polish the workpiece; a chemical active component added in the grinding and polishing liquid is a pH regulating agent or active ions; and a proper amount of small particle auxiliary abrasive is added in the grinding liquid to make a grinding and polishing pad uniformly abraded, and a stable material removing rate is guaranteed. The method has the beneficial effects of being simple in preparation, short in process route, high in rate of finished products, low in cost, stable in machining performance and the like. 种超硬脆工件研磨抛光新方法，其特征是它主要包括（1）金刚石磨料聚集体制备；（2）压制成形；（3）配制研磨抛光液对工件进行研磨抛光；研磨抛光液中添加的化学活性成分为酸碱调节剂或活性离子；研磨液中添加适量的小颗粒辅助磨料，使研磨抛光垫均匀磨损，保证稳定的材料去除速率。本发明提供的方法具有制备简单、工艺路线短、成品率高、成本低、加工性能稳定等优点。