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钼钛锆合金的耐高温和抗高温高速燃气冲刷等优点,使其被广泛应用为航天发动机控制模块的结构材料,但其高效精密加工一直是应用中的难题。因此,采用线切割及电火花(WEDM+EDM)组合放电加工的工艺,开展了钼钛锆材料固体发动机燃气阀特殊型腔加工的组合工艺研究。与传统切削加工相比,该方法具有加工精度高、表面质量好和具备加工复杂型腔的能力;与单一电火花加工相比,具有加工效率高、电极损耗小等优点。通过某型号固体发动机燃气阀的加工试验,采用组合工艺完成了燃气阀体的上下异形面型腔、阶梯异型孔、窄槽和异形盲孔等特殊型腔的高效高精度加工。
Molybdenum titanium zirconium alloy high temperature and high temperature high-speed gas scouring and other advantages, making it widely used as a structural control module spacecraft engineered materials, but its efficient precision machining has always been a problem in the application. Therefore, the combination of wire EDM and EDM (EDM) EDM was used to study the combined process of special cavity machining of molybdenum-titanium-zirconium solid-gas valve. Compared with the traditional machining, this method has the advantages of high machining accuracy, good surface quality and complex machining cavity. Compared with the single machining, it has the advantages of high machining efficiency and small electrode loss. Through the experiment of the gas valve of a certain type of solid engine, the high efficiency and high precision machining of the special cavities such as the upper and lower profiled cavity of the gas valve body, the ladder shaped hole, the narrow groove and the shaped blind hole are completed by the combination process.