在喷油嘴的制造过程中,油嘴孔的加工是道关键性的工序,其加工方法不仅影响生产效率,而且直接影响着喷雾特性。当前国内对油嘴孔加工采用高速钻孔和电火花穿孔这两种方法较为普遍,激光打孔方法正在研制试用阶段,这三种加工方法各自具有特点,但由于加工方法不同,造成油嘴孔的几何 In the nozzle manufacturing process, nozzle hole processing is a key process, the processing method not only affects the production efficiency, but also directly affect the spray characteristics. At present, the two methods of high-speed drilling and EDM perforation machining are widely used in China. The laser drilling method is under trial development. Each of the three machining methods has its own characteristics. However, due to different processing methods, the geometry of the nozzle hole