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为了研究冲液对电火花成型加工电极损耗的影响,应用流体力学方法,采用k?e湍流模型,建立了盲孔内花键电极的流体力学有限元数学计算模型,分析了电极附近流速矢量场、速度场、压力分布情况。仿真结果表明:采用右侧向持续循环冲液方式时,在电极左侧形成了负压区;电极周围工作液流速相对较小;在电极面向冲液方向150o范围内所承受的压力较其它部位大;上下两齿对冲液形成了分流的作用,并且在左侧齿尖位置的流速要高于其它部位,加速上下两齿左侧的电极损耗。
In order to study the influence of the solution on the electrode loss caused by EDM, a hydrodynamic finite element mathematical model of the spline electrode in the blind hole was established by using the k? E turbulence model by using the fluid mechanics method. The flow vector field near the electrode , Speed field, pressure distribution. The simulation results show that when the right-side continuous cycle is used, a negative pressure area is formed on the left side of the electrode. The flow rate of the working fluid around the electrode is relatively small. The pressure in the range of 150 ° facing the electrode is higher than that of other parts Large; up and down two teeth formed a red blood flow diversion effect, and in the left tip position of the flow rate is higher than the other parts, accelerate the upper and lower teeth on both sides of the left electrode loss.