One Main Reason For Special Surface Treatment Of Graphite Electrodes: Improving Surface Finish

In some high-precision applications, the surface finish of the graphite electrode directly affects the machining quality. For example, in EDM, electrode surface roughness can cause burrs or unevenness on the machined surface. To improve surface finish, the following treatments are commonly used:

Mechanical polishing: Polishing the electrode surface with sandpaper or a polishing wheel to achieve a smoother surface.

Chemical polishing: Using chemical reagents to etch the electrode surface, removing protrusions and achieving a smoother surface.

Improving surface finish ensures the accuracy and quality of the machined part.