Electrical discharge machining

Electrical discharge machining, also known as spark erosion or electrical discharge machining, is used as an advanced manufacturing technique in metal surface treatment. This process offers a precise way of machining metallic materials, especially those with high hardness or complex shapes for which conventional mechanical methods would be impractical.

In electrical discharge machining, an electrical voltage is generated between an electrode tool and the metal surface to be machined. This leads to controlled electrical discharges or spark discharges between the electrode and the workpiece. The resulting heat melts or vaporizes the material at the processing point, and in this way the metal is removed layer by layer to achieve the desired shape.

Metal surface treatment using electrical discharge machining enables the precise shaping of workpieces and the production of complex 3D structures. This process is particularly useful for the production of precision tools, molds for plastics and metal processing and components for the aerospace industry. By avoiding mechanical pressure, even heat-sensitive materials can be precisely machined. Electrical discharge machining thus contributes significantly to the realization of sophisticated metal components by enabling highly accurate and efficient metal surface treatment.