Final answer:
Electrodischarge machining is an electrical means of removing metal by electrical erosion. It is commonly used for shaping or cutting hard materials that are difficult to machine using traditional methods. Examples include wire EDM and sinking EDM.
Step-by-step explanation:
Electrodischarge machining is an electrical means of removing metal by electrical erosion. It is commonly used for shaping or cutting hard materials that are difficult to machine using traditional methods. In this process, a spark discharge is generated between a tool and the workpiece, causing small portions of the workpiece to be eroded and removed.
One example of electrodischarge machining is wire EDM (Electrical Discharge Machining), where a thin wire is used as the tool to cut through the workpiece. Another example is the sinking EDM, where a shaped electrode is used to create cavities or intricate shapes in the workpiece by erosion.