A Technique of Tool Manufacturing by changing the Polarity of EDM

In today's modern era, cutting processes involves many vast technologies. EDM process is one of the advancedmetalcutting processes. Since most of the tools are made from conventional processes in the lathe machine. This paper proposes a technique to manufacture some specific tools by changing the polarity in EDM. Changing the polarity means changing the path of the electronfrom tool to workpiece and workpiece to tool. This results more accurately and easily for manufacturing of complex-shaped tools.