Electrical Discharge Machining (EDM)

EDM, or electrical discharge machining, is capable of machining complex shapes in hard materials. The process includes an electrode and a workpiece, both submerged in dielectric fluid. Electrical current flows between the workpiece and electrode, repeatedly creating tiny plasma zones that instantaneously melt and remove the material. The electrode in EDM takes different forms. Wire EDM machines use a thin wire to cut. Ram EDM machines, or “die sinkers,” use electrodes that are custom machined into 3D shapes. The EDM process produces a cavity in the part that is the opposite or female version of the “male” electrode form. Similar to the ram EDM machine is the small-hole EDM machine, or “hole popper.” On this machine, the electrode is a cylinder used to machine a hole. 

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Blog

Buying a Wire EDM: How It Works

Wire EDMs can cut parts that require a level of accuracy, intricacy and fine surface finish that traditional machining methods cannot achieve. Here’s how it works.
Blog

At a Grand Opening, Sodick Reveals More Than New Machines

Along with launching a new line of hybrid machines, the EDM manufacturer is tailoring one of its EDM models specifically for post processing additive parts.

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EDM Drill Provides High Production, Unattended Operation

IMTS 2018: Current EDM Inc.’s FT300 five-axis CNC EDM drilling machine features the Siemens 840Dsl control.



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