During EDM, the workpiece and which other component are immersed in a dielectric fluid?

During Electrical Discharge Machining (EDM), the process involves the precise removal of material from a workpiece through electrical discharges between an electrode and the workpiece. The workpiece and the electrode are both submerged in a dielectric fluid, which serves multiple essential functions.

The dielectric fluid is critical for cooling the workpiece and the electrode, preventing unwanted electrical discharges, and flushing away chips and debris created during the machining process. This fluid acts as an insulator, allowing controlled sparking between the workpiece and the electrode, which is essential for achieving the desired machining effect.

In comparison, capacitors, die sets, and resistors do not play a direct role in the EDM process regarding the engagement with the dielectric fluid in the same manner as the electrode and workpiece do. Therefore, the electrode is indeed the correct answer as it directly participates in the material removal process alongside the workpiece while being immersed in the dielectric fluid.