To improve the ECM accuracy and surface quality of shaping hole,two schemes are adopted to carry on the technical experiment,which inserted the permanent-magnet into the body and the core of cathode in the square hole separately.
为了提高型孔电解加工精度和表面质量,分别采用在方孔阴极体的四壁和芯部镶贴永磁体两种方案进行电解加工工艺试验。
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