EDM Spark Erosion

Spark and Wire Erosion are two different Electrical Discharge Machining (EDM) processes, which we use on a daily basis. Electrical discharge machining is a machining technique principally used for hard metals and metals that are difficult to machine using traditional methods. EDM normally operates with materials that are electrically conductive and is designed to erode (remove) intricate depressions or contours from pre-hardened steel negating the requirement for heat treatment to soften and re-harden the steel. We use this method on many different types of metals and alloys, such as Monel, Titanium, Tool Steel, Tungsten Carbide, Tantalum, Super Duplex and Inconel.

EDM allows for intricate detail that would be difficult to machine

with traditional cutting tools, achieves extremely close tolerances on some of the world’s hardest materials and allows the workpiece to be very small – compared to traditional cutting tools that can damage a workpiece due to excess pressure.

As there is no direct contact between the tool and the work piece, delicate sections and weak materials can be machined, very fine holes can be drilled, without any distortion, and a good surface finish can be obtained.