针对声光调Q YAG脉冲激光修整青铜结合剂金刚石砂轮,运用ANSYS有限元软件建立了三维脉冲激光烧蚀金刚石磨粒的数学模型和传热模型,得到了激光烧蚀金刚石磨粒后的温度分布。利用所建立的模型可获得不同激光参数下的变质层厚度,并通过实验对该模型进行了验证。针对脉冲激光修锐与整形的两个不同方面,从实验和数值模拟两方面研究脉冲激光参数对变质层厚度的影响规律,得到在修锐时脉宽与激光功率对变质层厚度影响程度相差不大,而在整形时脉宽则起到了绝对的主导作用;经过多脉冲激光烧蚀后变质层厚度有所减小;只有在砂轮修锐时石墨变质层厚度随脉宽的增加而减少。 Aiming at the acoustic and optical modulation of QYAG pulsed laser dressing of bronze bonded diamond grinding wheel, the mathematical model and heat transfer model of three-dimensional pulsed laser ablated diamond abrasive were established by ANSYS finite element software. The temperature distribution of laser ablated diamond abrasive was obtained. . By using the established model, the thickness of the metamorphic layer under different laser parameters can be obtained, and the model is verified through experiments. Aiming at two different aspects of pulsed laser sharpening and shaping, the influences of pulsed laser parameters on the thickness of the altered layer are studied experimentally and numerically. The difference between the pulse width and the laser power on the thickness of the altered layer is not significant Large, and in shaping the pulse width has played an absolute leading role; after multi-pulse laser ablation, the thickness of the metamorphic layer is reduced; only when the grinding wheel sharpening, graphite metamorphic layer thickness decreases with the increase of pulse width.