提出脉冲激光修锐青铜结合剂砂轮过程中存在相爆炸现象，分析了相爆炸对激光修锐产生的不利影响，并对相爆炸进行理论研究，为激光修锐青铜金刚石砂轮提供理论指导。开展相关实验，研究相爆炸发生时的激光工艺参数范围，采用高速相机对激光修锐过程的相爆炸进行观测，并采用超景深三维显微系统观察修锐后青铜金刚石砂轮地形地貌与青铜轮表面质量，得出激光修锐青铜结合剂砂轮要避免相爆炸发生，使得磨粒突出结合剂周边有容屑空间。优化相关条件下激光修锐青铜金刚石的工艺参数，并获得较理想的修锐效果。

The existence of a phase explosion phenomenon during the process of grinding wheel laser dressing is proposed, and the negative effects of a phase explosion on laser dressing are analyzed. Additionally, a theoretical study on phase explosion is conducted. In the experiment, the processing parameters of the laser during phase explosion are studied. A high-speed camera is used to observe phase explosion in the laser dressing process. An ultra-depth three-dimensional microscope system is used to observe the topography of the bronze bond diamond grinding wheel after dressing as well as the bronze wheel surface quality. It is concluded that to avoid phase explosion from occurring in the laser dressing of the bronze bond grinding wheel, chip space around the bond must exist for the abrasive particle protrusions. The processing parameters of laser dressing under certain condition are optimized, and the desired dressing effect is achieved.