Electric discharge machining is a kind of special machining technology, which is widely used in mold manufacturing and machining industries. Electrical discharge machining can be used to machine superhard materials and complex-shaped workpieces that are difficult to machine with traditional cutting methods. It is usually used to machine conductive materials and can be machined on difficult-to-machine materials such as titanium alloys, tool steels, carbon steels, and cemented carbides. Complex cavities or contours.
It is a special processing method for removing conductive materials by using the electro-erosion effect generated by the pulse discharge between the two poles immersed in the working fluid. We all have such life experience. After a period of use of electrical switches, the surface of the contact part is often eroded by electric sparks, which is rough and uneven. This is the phenomenon of electric spark erosion.
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Due to the high discharge energy during electric discharge machining, it can process materials that cannot be machined by ordinary cutting methods, such as hardened steel, heat-resistant alloys, and cemented carbides. At the same time, it has been widely used in the field of processing various complex cavities, dies and holes.
Because in the process of EDM, there is no direct contact between the tool electrode and the workpiece, and the cutting force is very small, which is very effective for machining those easily deformed workpieces and small and precise holes and narrow slits. Now the EDM process has been widely used in various sectors of the industry, and it is a very promising processing method.