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Wire-Electrical Discharge Machining


Wire electrical discharge machining (WEDM) is a machining process that uses a thin, electrically charged wire to cut through a workpiece. WEDM is also known as wire cutting EDM or wire erosion, and it is commonly used to machine complex shapes and features in hard, brittle, or conductive materials.

The WEDM process involves the following steps:

1、The workpiece is immersed in a dielectric fluid, which acts as a coolant and an electrical insulator.

2、A thin, electrically charged wire is threaded through the workpiece and positioned at the desired location for cutting.

3、A voltage is applied between the wire and the workpiece, creating a spark that melts and vaporizes the material at the contact point.

4、The wire is advanced through the workpiece, cutting a path that follows the desired shape and contour.

5、The dielectric fluid is constantly circulated to flush away the molten material and prevent the wire from overheating.

6、Once the cutting is complete, the wire is retracted, and the workpiece is removed from the machine.

WEDM offers several advantages over traditional machining methods, including the ability to cut complex shapes and contours with high precision and accuracy. It is also well-suited for machining hard or brittle materials that are difficult to machine with conventional methods. However, WEDM can be a relatively slow and expensive process, and the wire can wear out quickly, requiring frequent replacements.

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