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. 

Use Your Machinists to Make Dies

By systemizing die making into repeatable steps, Dies Plus, a division of Otto Engineering, is using its machinists to effectively make dies. This solution relies on a paperless color-coding system to convey the tolerances machinists need to hit in order for tool and die makers to do the final fitting.

Online Store for EDM Wire Gives Small Shops A Boost

Online ordering of a small number of EDM wire in spools encourages small shops to use premium wire types for faster cuts, better results and overall lower cost.

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Search and find related suppliers of Electrical Discharge Machining (EDM)

New Product Announcements

GIP's Plasma Coated EDM Wire Aids Flushing, Increases Speed

Plasma hybrid-coated EDM wire, available from Global Innovative Products (GIP), is made with a coating that aids flushing for wire EDM efficiency.



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EDM and the Precision Parts Industry

Although EDM often is not at the forefront of concern for precision machined parts shops, it can play a big role in the production of tooling that...

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