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Electrical Discharge Machining (EDM) is a manufacturing process that uses electrical sparks to remove material from a workpiece. Here's a simple explanation:

Setup:

Place a conductive workpiece (usually metal) and an electrode (often made of copper or graphite) close to each other in a dielectric fluid.

Generate Sparks:

Apply electrical voltage between the workpiece and the electrode, creating sparks.

Material Removal:

The sparks erode the workpiece, removing tiny particles.

Dielectric Fluid:

The dielectric fluid flushes away debris and helps control the sparking process.

Precision Machining:

EDM can achieve high precision, creating intricate shapes and fine details.

Types of EDM:

Wire EDM uses a thin wire as the electrode.

Sinker (or Ram) EDM uses a shaped electrode to create a negative of its shape in the workpiece.

Applications:

EDM is used for making molds, dies, and components with tight tolerances.

It's effective for hard materials that are challenging to machine using traditional methods.

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