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本研究通过单因素试验方法,开展钻削碳纤维复合材料的试验研究。采用KISTALER公司9265B型测力仪测钻削轴向力,并采用撕裂因子评价孔形貌质量,对钻削碳纤维复合材料的过程进行分析,研究不同钻削参数对钻削碳纤维复合材料的轴向力和孔加工质量的影响。试验结果表明:随着进给量的增大,轴向力逐渐增大,孔退钻口撕裂因子呈现先减小再增大的趋势,孔进钻口撕裂因子则呈现逐步小幅增大的趋势。随着转速的增大,轴向力逐步小幅减小,孔退钻口撕裂因子随之减小。并且,进给量对轴向力和孔加工质量的影响远大于转速对轴向力和孔加工质量的影响。在相同条件下,孔进钻口的毛刺、撕裂等缺陷明显少于退钻口的缺陷。
In this study, a single factor test method to carry out drilling carbon fiber composite materials experimental study. The axial force was measured by KISTALER Company 9265B dynamometer, the hole topography was evaluated by the tear factor, the process of drilling carbon fiber composite was analyzed, and the influence of different drilling parameters on the drilling of the carbon fiber composite shaft Impact and hole processing quality. The experimental results show that with the increase of the feed rate, the axial force increases gradually, and the tear-off factor of the hole under the unloading drill decreases first and then increases. The tear factor at the drill-in hole increases gradually and slightly the trend of. As the rotational speed increases, the axial force gradually decreases slightly, and the hole retracting hole tear factor decreases. Moreover, the influence of feed rate on the axial force and hole machining quality is far greater than the effect of rotational speed on the axial force and hole machining quality. Under the same conditions, the burr hole of the hole into the mouth, tear and other defects significantly less than the back drill defects.