Electrical Discharge Machining (EDM)

What is Wire EDM?

In the process of manufacturing with wire electrical discharge machining, an alloy wire suitable for cutting is used to cut the part to be machined and the cutting process is performed with the electro-erosion method. For obtaining a proper cutting, the workpiece is manufactured in the dielectric fluid environment created with the water supply units in the machine. To cut and remove the conductive materials from the part, manufacturing is performed with arc, which is known as electrical discharge.

Deionized water allows the machined part and the electrode to cool, while also serving to remove the parts that break off from the workpiece from the environment. Liquid pressure prevents the molten metal from sticking to the surface while ensuring low surface roughness and high cutting accuracy.

With the wire EDM method, you can manufacture deep pockets, marks, turning tools, broaches, gears and various molds. It is an advanced electrothermal machining technology for metallurgical applications, such as the examination of weld sections of the part, the production of samples for mechanical tests (tensile, fatigue, wear, etc.) or the detection of chemical changes on the casting piece.

What is Die Sinking EDM?

Die sinking electrical discharge machining is a CNC machining method that enables the manufacturing of forms that cannot be fully machined with conventional CNC machining methods.(turning, milling etc.) Shapes the workpiece immersed in the dielectric fluid by abrading it, utilizing electron migration (discharge) between the workpiece and an electrode (brass, copper, graphite, etc.) that serves as a tool.

By creating current sparks through the electrode, gears with complex internal structures, helical gears and small channels with complex structures can be machined on the workpiece. In addition, pressurized and injection cast molds, forged molds, carvings and concavities for cutting tools can also be manufactured with sinking erosion technology.