使用不同类型刀具对碳纤维复合材料(CFRP)制孔过程中的缺陷和孔壁质量进行研究,设计了单因子实验,通过选取制孔刀具传统麻花钻、螺旋铣刀、台阶钻、烛心钻,对CFRP进行了切削制孔实验,利用超景深电子显微镜观测加工缺陷,使用表面粗糙度测量仪测量孔壁粗糙度。结果表明,与传统麻花钻制孔相比,采用螺旋铣工艺、台阶钻或烛心钻制孔能够减小孔口处的分层缺陷,有效提高孔表面质量。 The different types of tools were used to study the defects in the process of CFRP and the quality of the hole wall. The single factor experiment was designed. By selecting the traditional twist drill, spiral cutter, step drill, CFRP cutting hole experiment, the use of depth of field electron microscopy processing defects, the use of surface roughness measuring hole wall roughness. The results show that, compared with the traditional twist drill hole, the use of spiral milling, step drill or candle heart drill hole can reduce the delamination at the orifice defects, effectively improve the hole surface quality.