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在电火花加工中，沿电极的轴向采用微幅超声振动可明显改善微小孔的加工性能，本试验对该系统Φ２０Ｘ５５的微型换能器进行了设计和有限元分析，在频率３９～４５ｋＨｚ范围内获得无侧向振动的轴向振动和对加工有利的振幅
In EDM, micro-ultrasonic vibration along the axial direction of the electrode can obviously improve the processing performance of micro-holes. In this experiment, the design and finite element analysis of micro-transducer of Φ20 × 55 are carried out. In the frequency range of 39 ~ 45kHz Axial vibrations without sideways vibration and amplitudes favorable for machining are obtained