Electro-erosion edge honing of cutting tools

Sink EDM of fine features necessitates the application of several tool electrodes to sequentially generate the required geometry, due to the inevitable localized wear of the tool that rapidly rounds-off sharp edges. Be that as it may, this phenomenon can be exploited to hone sharp edges of electrically conducting cutting tools by sinking the cutting edge into an appropriate counterface material. This paper presents the proof-of-concept and …