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针对传统加工方法在加工非电工程陶瓷时存在加工效低、本高以及加工表面质量差等缺点,本文提出了非电工程陶瓷高能量电容高效电火花加工新方法,并进行了单脉冲放电试验研究,结表明,该方法采用高电压大电容以及较高放电能量,能够较大地提高材料去除效,单次脉冲放电陶瓷去除量可达17.63mm3.对加工极性、峰值电压、电容、限流电阻、工具电极进给方式、工具电极截面积以及辅助电极厚度等参数对陶瓷蚀除坑体积、工具电极损耗以及辅助电极损耗等性能影响进行了试验研究与理论分析,了相应规关系.采用扫描电子显微镜对单脉冲放电坑微观形貌进行了观测.结表明:放电坑表面溅射状,陶瓷主要以剥落方式去除,放电通道中心区域部分材料以熔化蒸发方式去除,且材料去除效随着加工参数增大而增强.
Aiming at the shortcomings of traditional machining methods in machining non-electrical engineering ceramics, such as low machining efficiency, high height and poor machined surface quality, a new method of high-efficiency EDM for non-electrical engineering ceramic high energy capacitors is proposed. Single-pulse discharge test The results show that this method can increase the material removal efficiency greatly by using high voltage and high capacitance and high discharge energy, and the removal rate of single pulse discharge can reach 17.63mm 3. The processing polarity, peak voltage, capacitance, current limit Resistance, tool electrode feeding mode, tool electrode cross-sectional area and auxiliary electrode thickness on the performance of ceramic etching pit volume, tool electrode loss and auxiliary electrode loss were studied experimentally and theoretically. The microscopic morphology of single-pulse discharge pits was observed by SEM.The results showed that the surface of the discharge pits was spattered and the ceramic was mainly removed by spalling, and some of the materials in the central part of the discharge channels were removed by means of melting and evaporation, The parameters increase and increase.