square-hole type

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。

A new method for processing the hexagonal hole in the axle by hot backward extrusion on the friction press was proposed,which threw away the traditional milling or slotting method.

对轮轴上六方孔的加工提出了摒弃传统的铣插加工方法 ,采用在摩擦压力机上进行热反挤压成型 ,并就可能出现的缺陷及防止措施进行了探讨。