CAJ | 학술논문

采用电火花修锐方法对青铜结合剂锯齿形 CBN 砂轮在平面磨床上进行修锐实验，对修锐前后的砂轮表面形貌进行观测，修锐后砂轮的有效磨粒数、磨粒凸出高度明显增加，修锐时间以4~6h 为宜；采用修锐后的砂轮对材料2T8/SK5进行了锯齿磨削加工实验，经测量，锯齿角度轮廓精度有较大提高。电火花修锐方法适合于金属基CBN砂轮的修锐。
채용전화화수예방법대청동결합제거치형 CBN 사륜재평면마상상진행수예실험，대수예전후적사륜표면형모진행관측，수예후사륜적유효마립수、마립철출고도명현증가，수예시간이4~6h 위의；채용수예후적사륜대재료2T8/SK5진행료거치마삭가공실험，경측량，거치각도륜곽정도유교대제고。전화화수예방법괄합우금속기CBN사륜적수예。
Performance of metal-bond CBN forming grinding wheel is excellent,and it is widely used in grinding of complex and precision workpiece.However,it is difficult to dress the metal-bond CBN forming grinding wheels.Saw-teeth shape metal-bond CBN grinding wheel was dressed by electro-discharge in surface grinder.It was observed that effective abrasive particles and effective height of abrasive particles increased after dressing by analysis of wheel's surface topography.Then the dressed CBN grinding wheel was used to grind saw-teeth in material 2T8/SK5,during which the measured angle accuracy of saw-teeth was obviously improved.Electro-discharge dressing method is suitable to dress metal-bond CBN forming grinding wheel.