论文部分内容阅读
为了探究微量润滑条件下,碳纤维复合材料(CFRP)/铝合金(Al)叠层钻孔粉状切屑对孔径、表面粗糙度和出口毛刺高度等加工质量的影响规律,进行了3种不同润滑条件下的钻孔实验,观察了切屑形态及切屑黏附现象,分析了加工质量数据。结果表明:粉状切屑与油雾形成的混合物容易滞留在孔内,从而减弱润滑效果,这是影响叠层钻孔质量的主要因素。抑制其影响的方法包括:降低切削速度,从而减少切削热并增加润滑时间;复合材料选择干切,尽量避免混合物的生成;增大油雾输送主管路内径,提高油雾流量和压力。
In order to explore the rule of the processing quality of CFRP / Al laminated drilling chip on the processing quality of pore diameter, surface roughness and exit burr height under micro-lubrication conditions, three different lubrication conditions Under the drilling experiment, observed chip morphology and chip adhesion phenomenon, processing quality data. The results show that the mixture of powdered chip and oil mist is easy to stay in the hole, which will weaken the lubrication effect, which is the main factor affecting the quality of the laminated drilling. Methods to reduce their impact include reducing the cutting speed, reducing the heat of cutting and increasing the lubrication time. The composite material is cut by dry cutting to avoid the formation of mixtures. The inner diameter of the oil mist transport main pipe is increased to increase the oil mist flow and pressure.