Wire EDM Machining
CNC Wire EDM stands for “Wire Electrical Discharge Machining.” This method of cutting is incredibly precise and can be used to cut almost any electrically conductive material. To accomplish cutting, a thin EDM wire is suspended between two mechanical guides. Then, it’s electrically charged, forming an electrode.
The material that is being cut – such as steel – forms the second electrode. When the EDM metal cutting comes near the wire and the workpiece material, it creates sparks that cut the material way, leaving behind a negative imprint. During the cutting process, the workpiece and wire are submerged in deionized water, which allows the debris from cutting to be washed away.
The charged wire itself never actually contacts the material that is being cut, so wire cutting services material can be used to create extremely small, delicate components that require a level of precision that is impossible to accomplish with traditional CNC machining.
The Advantages Of Wire EDM Machining
| No physical contact with the machine part: precision EDM machining can work on any hard, conductive material and it will not damage or compromise the finished product. Thermal issues are minimized, and there is less stress on the part, which minimizes distortion and risk of damage. This makes it ideal for fragile, delicate components. Extremely precise: wire electrical discharge machining is widely considered to be the most precise manufacturing method in use today. Common tolerances for machined parts with EDM are around ± 0.0001”. Highly-repeatable: Wire EDM can be used to create intricate parts over and over again, with the exact same accuracy and no decrease in part quality. No further tooling required: There is no need for thermal treatments, or for further tooling to remove burrs or other imperfections, due to how precise and accurate wire EDM is. Short lead times: EDM metal cutting does not require tooling to be swapped, reducing the amount of time it takes to set up a new project, and decreasing project overhead.
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