Swing Mechanism for Micro EDM Drilling of Fuel Jet Nozzles
To improve the spray effects of fuel-jet nozzles,the deep micro-holes of the nozzles require taper angle 0°-2° along jet direction.In this paper,a taper-swinging mechanism (TSM) is designed to swing a taper angle on an electrode wire for micro electrical discharge machining (EDM) of micro-taper holes.The features of TSM are as follows.First,the electrode wire and its guider are swung simultaneously during the micro-EDM drilling.Second,the center of a fixed sphere as the taper vertex is positioned on the surface of workpiece.Thirdly,non-rotating of the electrode wire and the fixed center avoid the errors of the swing motion.The taper holes with the corresponding angles of 0.12°,0.40°,0.83°,and 1.32° were machined by using TSM.The batch production showed that the consistency accuracy of holes diameters reached 4μm.In addition,the TSM was applied in a micro EDM machine tool.
Micro-EDM Taper Hole drilling Swing Mechanism Design Fuel Jet Nozzle
Hao Tong Yong Li Long Zhang
Institute of Manufacturing Engineering/State Key Laboratory of Tribology,Tsinghua University,Beijing 100084,China
国际会议
广州
英文
391-395
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）