Machining the Impossible – Wire EDM Services
CNC Wire cutting EDM services are what we do best. We offer standard, as well as high precision tolerances, as tight as 2µm (0.0001″) for an array of industries and applications. Our wire cut electrical discharge machinery have the capacity to run multiple wire sizes, including small wire EDM and microwire as small as 20µm (0.0008″) in diameter. Our experience and state-of-the-art wire EDM cutting equipment enable us to provide accurate, repeatable, and quality parts and components made from nearly any type of conductive material. Complex shapes with small features and tight tolerances in materials that make traditional CNC machining almost impossible are easily achieved using Wire EDM machining. The small wire EDM processes unique to EDM Intelligent Solutions even allow for the creation of wire EDM finished holes with diameters as small as 30 microns.
What is Wire EDM?
The Wire EDM (Electrical Discharge Machining) process uses a thin single strand of wire, which is fed through the workpiece in conjunction with high pressure deionized water. Multiple miles of wire electrode held on wire spools is fed between two guide rollers, much like the blade on a band saw, that are then driven in a path controlled by the CNC machine control. During this EDM metal cutting process, electric current is used to erode away the conductive materials of the workpiece and leave behind an extremely smooth and uniform surface that requires no additional finishing or polishing processes. This wire electrical discharge machining process is typically used when low residual stresses in the workpiece material are desired, as there is little change to the mechanical properties of the material. During this process, the cutting wire electrode doesn’t ever touch the workpiece material. Instead, the EDM cutting takes place when electrical sparks form between the material and the cutting wire in what is referred to as the voltage gap. Highly filtered, deionized water is used because it deionizes the spark gap, flushes away the metal particles removed by erosion from the workpiece, and acts as a cooling medium to keep the machining temperatures stable. Wire EDM machining is widely used within a multitude of industries for creating components by cutting intricate shapes in numerous conductive and oftentimes delicate materials.