WIRE EROSION

 

Wire EDM

CNC Wire-cut EDM

With wire electrical discharge machining, also known as wire-cut EDM, a fine single-strand metal wire, typically brass, is threaded through the workpiece, which is sunken into a tank of dielectric fluid, typically deionised water. Wire EDM is normally used to machine plates as thick as 300mm, we regularly fashion punches, general tooling, and dies from hard metals.

The dielectric fluid is used to control the resistivity and other electrical properties with filters and de-ioniser units. The liquid allows eroded debris to flow away from the cutting zone.

Advantages

Some of the advantages of EDM include machining of:

• Intricate detail that would be difficult to machine with traditional cutting tools

• Extremely close tolerances on some of the world’s hardest materials

• Allows the workpiece to be very small, compared to traditional cutting tools that can damage a workpiece due to excess pressure

• There is no direct contact between tool and work piece. Therefore delicate sections and weak materials can be machined without any distortion.

• A good surface finish can be obtained.

• Very fine holes can be easily drilled.

Click here our brochure page on our new machines, the AgieCharmilles wire-cut 20P and 30P.

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Spark and Wire 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. EDM 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