On account of the ultrasonic abrasive mixed powder EDM is a complex process, it is difficult to build a precise mathematical model of the processing.

由于超声磨料混粉电火花加工是一个复杂的过程，难于建立精确的加工理论模型。

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The powder mixed dielectric mirror EDM not only can improve the machined surface roughness but also the abradability and corrosion stability.

混粉电火花镜面加工不但能改善加工表面粗糙度，且能提高加工表面的耐磨性和耐蚀性。

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By using waterpower rotational flow device which can classify or separate solid grain from liquid, a utility dielectric tank used for common EDM and powder mixed dielectric EDM is designed.

利用水力旋流器对固体颗粒的分级、分离功能，设计了一种既能用于常规电火花加工又能用于混粉电火花镜面加工的通用型储液箱。

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