加工工艺参数对碳纤维增强复合材料层合板制孔质量的影响

为了研究不同的钻孔参数对制孔质量的影响，本文采取五种不同顶角的刀具(90°、118°、140°、160°、180°)以及不同进给速度对碳纤维增强复合材料(Carbon Fiber Reinforced Plastics)层合板进行钻削实验，将钻孔参数与制孔质量的关系进行拟合，建立了基于分层因子的评价方法，并由此开发一种CFRP钻孔工艺参数知识库系统。通过对不同顶角钻头的轴向力-时间曲线、进给率/顶角-轴向力拟合关系图进行分析，并对比不同顶角钻头的扫面电子显微镜(SEM)图象，发现：钻头顶角越大，进给率越大则钻削轴向力越大，出口分层缺陷越严重；钻削参数为小顶角、低进给时，出口质量更优异。

Effect of Processing Parameters on Hole Quality of CFRP Laminates

In order to study the influence of different quality of hole drilling parameters on the system, this paper used five different apex angle of cutting tool (90 °, 118 °, 140 °, 160 °, 180 °) and different feed speed experiment of CFRP laminates drilling, drilling parameters and hole quality of relationship between fitting, established the evaluation method based on delamination factor, and developed a CFRP drilling process parameters knowledge base system. By analyzing the axial force-time curve, feed rate/tip angle-axial force fitting diagram of different tip angle-bits, and comparing the SEM images of different tip angle-bits, it is found that the larger the bit tip Angle and the larger the feed rate, the greater the axial force and the more serious the exit lamination defect. When the drilling parameters are small top Angle and low feed, the outlet quality is better.