EDM Machining and current drilling

Precision offers three Charmilles wire EDM machines and one EDM current drilling machine. The largest of the EDMs is a Charmilles 4030 which includes a water tank to fully submerge the fixture, tool head and part to be machined. By controlling the entire environment, tolerances drop dramatically. With the wire EDM process there is no tool pressure and no tool wear which are both common issues with traditional CNC machining resulting in very low tolerances.

The wire EDM process can use wire diameters from .001" up to .012" to handle a wide range of applications. EDM also produces very sharp corners and edges for demanding application.

Another advantage of wire EDM is the superior finish that is produced as it requires no deburring to produce a very smooth and straight surface. We also have 4th axis capabilities on all our machines offering additional range of machining ability. Since the head on all our machines fully articulates independent of each other, this also offers the ability to make parts not normally associated with EDM.

Since EDM removes material with electricity vaporizing the material, hardness and material type is not an issue as long as the work piece conducts electricity. The EDM process also allows us to heat treat parts before machining as opposed to after. This completely eliminates the movement that traditionally occurs after heat treating as a source of part dimensional variation.