Electrical discharge machining (EDM) is a machining technique that uses controlled electrical discharges to remove material from conductive metals, enabling the production of complex geometries with high precision.
Electrical discharge machining (EDM) is a shaping process that utilises a series of electrical discharges (sparks) generated between a tool electrode and the workpiece, both immersed in a dielectric fluid.
The discharges, separated in time and space, cause the progressive erosion of the material without any mechanical contact between the tool and the workpiece.
As the process takes place without direct contact, the hardness of the metal has a minimal effect on the machining speed, allowing both soft and very hard materials to be machined with good dimensional accuracy.
Electrical discharge machining (EDM) allows any conductive metal to be machined, including:
Iron
Hardened steels
Stainless steel
Aluminium
Brass
Copper
The hardness of the material has little effect on the material removal rate, making this technology particularly suitable for materials that are difficult to machine using conventional tools.
The possibility of using electrodes made of easily moldable materials, such as brass, also allows for the creation of unique geometries and high-precision details.
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