EDM Machine

EDM Machine

An EDM machine, also known as an electrical discharge machining machine, is a type of machining tool used to create complex shapes in hard metals or other conductive materials. It works by using a series of electrical discharges (sparks) to erode material from the workpiece.

EDM is a non-traditional machining process, meaning it does not use a sharp cutting tool to remove material. Instead, it uses thermal energy to melt and vaporize the material. This makes it ideal for machining hard metals, such as tool steel, stainless steel, and titanium, that would be difficult or impossible to machine with traditional methods.

There are two main types of EDM machines: sinker EDMs and wire EDMs.

Sinker EDMs use a shaped electrode to create cavities and pockets in the workpiece. The electrode is plunged into the workpiece, and a dielectric fluid is flushed between the electrode and the workpiece. The dielectric fluid helps to insulate the electrode and workpiece and to remove debris from the cutting zone.

Wire EDMs use a thin wire electrode to cut two-dimensional shapes into the workpiece. The wire electrode is continuously fed through the machine and is guided by a computer numerical control (CNC) system. The wire electrode is never in direct contact with the workpiece, but it is close enough to create electrical discharges that erode the material.