铜铬复合电极电火花小孔加工机理及试验研究

uring the machining processing of Small hole EDM drilling，there are many serious questions，such as the serious tool electrode loss，the slow machine speed，the corner wear resulting taper shape。Analysising the cause of these questions，the paper sugest that adopting Cu-Cr composite electrode for Small hole EDM drilling。On the analysis of the processing mechanism，the Cu-Cr composite electrode was used in Small hole EDM drilling。Experimental results indicated comparing the Cu electrode，Adopting Cu-Cr composite electrode for Small hole EDM drilling can remarkably improve the processing speed，reducing the taper and electrode relative loss.