叠加磁场方孔电解加工试验研究

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.结果表明,与不叠加磁场相比,在相同工艺参数下,四壁镶贴永磁体有利于改善表面粗糙度,芯部镶嵌永磁体有利于减小杂散腐蚀.

Research on the Superposed Magnetic Field ECM of Square Hole

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. Compared with the experiment of electrochemical machining without magnetic field, the magnet around the body of cathode is in favor of improving surface roughness under the same processing parameter, while the core of cathode inlaid with the magnet are helpful to reduce the stray corrosion.