本文根据锯片工作面上金刚石磨粒的形状、出刃高度的不同,把金刚石磨粒破碎花岗岩作用归纳为负前角刀具切削和金刚石磨粒磨削的综合。分别采用负前角金刚石刀具切削花岗岩和单颗粒金刚石磨削花岗岩的两种不同的试验方法,观察研究花岗岩主要组成矿物的结构特性对切削和磨削过程中裂纹的产生与扩展的影响规律,研究花岗岩锯切机理。 In this paper, according to the shape of the diamond abrasive grain on the work surface of the saw blade and the different cutting edge heights, the diamond abrasive grain breaking granite function can be summarized as the combination of negative rake angle tool cutting and diamond abrasive grain grinding. Two different test methods for cutting granites and single-grain diamond grinding granites with negative rake diamond tools were used to observe the influence of the structural properties of the major constituent minerals on the generation and propagation of cracks during cutting and grinding. Granite sawing mechanism.