Spark Erosion - Electro Discharge Machining (EDM)

Spark eroding is a manufacturing process for removing excess material often not accessible or achievable by conventional machining processes.

The process, also known as electro discharge machining (EDM) , is based on a continuous spark between the work and an electrode within a vibrating head. The principal uses coolant creating a thermal shock which reduces the scrap material to powder with the coolant being used to wash the excess material away.

The temperature of nearly 5000 degree centigrade is reached and because of the controlled high rate of flow of the coolant a thermal shock is created resulting in no heating of the surrounding material.
By eliminating heat to the surrounding work no distortion or change in temper takes place.

The process is ideal for as well as for manufacturing complex or short run components it can be used for reclaiming other wise scrapped components – typically the process is ideal for removing broken taps, drills, studs, bolts or similar without affecting the work piece.

Spark Erosion - Typical Applications

Machining components not accessible or achievable using conventional methods e.g- Internal Square Corners.

Producing cost effectively small batches of machined components.

Reclaiming components or equipment with broken taps, drills or studs.

Capacity

Work pieces of a maximum size of 1metre X 650mm can be processed

We always welcome enquiries exploring the potential uses for this process.