采用脉冲光纤激光器，探索激光径向修锐树脂立方氮化硼(CBN)砂轮关键工艺参数，开展了激光烧蚀树脂结合剂轮脉冲重叠率实验、激光烧蚀纯树脂结合剂轮实验和激光修锐树脂CBN 砂轮实验，并进行了磨削实验验证。结果表明，光纤激光径向修锐树脂CBN 砂轮最佳脉冲重叠为30%~50%，最佳单脉冲激光功率密度分布于5×107~7.5×107 W/cm2区间内，修锐深度可达到39 μm ，磨削工件的表面粗糙度为0.789 μm ，磨痕窄而浅，修锐效果良好。

Using a fiber laser to explore the key parameters of laser radial sharpening the resin-bonded cubic boron nitride (CBN) grinding wheels, a systematic research is carried out, which consists of the test of pulse overlap rate of optical fiber laser ablating resin-bonded wheels, optical fiber laser ablating resin-bonded wheels and optical fiber laser ablating resin- bonded CBN grinding wheels. The results, which have been testified by grinding experiments, show that the best pulse overlap rate is 30% ~50% , the best single pulse laser power density is distributed in the range of 5×107~7.5×107 W/cm2, the sharpening depth with a good performance is 39 μm , surface roughness of workpiece is 0.789 μm . The narrow and shallow traces of grinding are obtained.