Research on Drilling Taper Holes of Fuel Jet Nozzles by Micro EDM
Micro holes of fuel jet nozzles require a taper angle in jet direction in high-standard die-sel engines. In order to drill micro taper holes, a swing mechanism was designed and applied in micro EDM equipment. The key technologies of the swing mechanism includes high-resolution adjustment of micro taper angles, high-precision positioning of micro-taper vertex, and driving-force transmission of swing movement without micro-electrode rotation. In addition, the performance tests were carried out to gain the runout error of electrode-swing movement, the adjustment error of micro-taper angle, and etc. The designed functions were verified by the machining experiments of micro holes with different micro-taper angles. The results of experiments showed that the swing mechanism is feasible to be applied in machining the taper holes of fuel jet nozzles.
NETL
NSTL
万方数据
维普
