双锋角钻头钻削碳纤维增强树脂基复合材料研究

Drilling Carbon Fiber Reinforced Plastics With Double Cone Drill

采用双锋角钻头和普通麻花钻对T700碳纤维复合材料(CFRP)进行钻削试验,从钻削轴向力、制孔出口质量和表面粗糙度等方面分析双锋角钻头在不同加工参数下制孔特点,并与普通麻花钻进行对比。试验结果表明:与普通麻花钻对比,双锋角钻头钻削CFRP时钻削轴向力减小约20%,制孔出口质量更好,孔壁的表面粗糙度值减小,体现优异的切削性能更适合CFRP的制孔加工。

The double cone drill and twist drill were used to drill T700 carbon fiber reinforced plastics （CFRP）. The drilling axial force, hole exit quality and surface roughness were used to analysis the double cone drill hole making features under different processing parameters. Compared with carbide twist drill, the double cone drill performed excellent cutting performance because of its drilling axial force reduced by about 20%, the hole exit quality is better, and the hole surface roughness is smaller. So, the double cone drill is more suitable for drilling CFRP.