This animation explains about Electrical Discharge Machining (EDM) Techniques.
EDM is a machining method based on spark erosion and is an abbreviation for Electrical Discharge Machining. EDM is a form of material processing that uses electrical tension between the workpiece and an electrode. This creates tiny sparks that melt off minute pieces of the material within a thousandth of a millimeter. This process of spark erosion applies to virtually any electrically conductive material, regardless of its hardness.
Good examples are materials such as steel, carbide, aluminum, and copper. The speed of the machining process depends in part on the melting point of each material type. Well-known variants of EDM machining are technologies such as:
* Wire EDM
* Hole-drilling EDM
* Die Sinking
There are many advantages to EDM. Machining based on spark erosion guarantees consistent quality down to the most diminutive dimensions. Traditional machining techniques such as drilling and milling employ rotating parts to shape the material. EDM is a process without rotating parts. This enables continuous contours with sharp angles on the inside.
The extreme accuracy of the technology also guarantees high process reliability. A prerequisite for this is that the electrode is replaced promptly during the machining process. Finally, the absence of mechanical stress ensures that even the most fragile products can be machined with precision and without any deformation risk.
More information about these techniques can be found at www.terhoek.com.
