Wire-Electrical Discharge Machining

Wire EDM (EDM) is a non-molded process in which a pulse voltage difference between a wire electrode and a conductive workpiece causes a spark that corrodes the workpiece material. In the case where the workpiece material is difficult to machine with conventional machine tools due to high strength, hardness, toughness and the like, it is often advantageous to remove the material in this way (Newton, 2008). For the process itself, EDM can produce any complex shape, but it loses surface integrity and other after effects, such as kerf width, heat affected zones, etc.

• Electrical Discharge Machining (EDM): This process, also known as spark machining, uses arc discharge to create micro craters and quickly and completely cuts. EDM is used for demanding tolerance applications that require hard materials and complicated shapes. EDM requires the substrate to be conductive, which limits its use for ferroalloys. CNC or CNC machining is a computer-aided technology that can be used in various equipment. To guide a tool to shape a workpiece based on preset parameters, you usually need G code language software and programming. In contrast to the manual guidance method, CNC machining is an automated process. Some of its advantages are as follows.

Electrical discharge machining (EDM) is a process of removing metal using an electric spark that burns off metal. CNC EDM has two forms: vertical EDM and wire EDM. Vertical EDM requires the use of electrodes with the shape of the cavity to be machined into the workpiece (usually machined with a CNC machining center). Please imagine the shape of a plastic bottle that needs to be molded. Wire electric discharge machining is commonly used to make a combination of a punch and a die of a mold set used for manufacturing. Because the EDM is closely related to the tools that use other manufacturing processes, it is a CNC operation that is not well known.

Electrical discharge machining (EDM) is an electrothermal and non-traditional process, in which the material is removed due to the thermal energy of the spark. EDM uses electrical energy to generate an electric spark passing through a dielectric fluid at a controlled distance. Irrespective of their hardness, shape and toughness, the material removal rate is related to the melting point of the metal to be processed so that the conductive parts can be processed by EDM. This is one of the most important methods used in the manufacture of molds with very good accuracy and precision and because there is no direct physical contact between the mechanical electrode and the workpiece, No mechanical stress is applied.