An electric discharge machining wire includes a brass containing 43 mass % or less of zinc (Zn) and having an ?-phase and a ?-phase, wherein a component ratio of the ?-phase in the brass is greater than 50 vol % and 55 vol % or less.

An electric discharge machining wire includes a brass containing 43 mass % or less of zinc (Zn) and having an ?-phase and a ?-phase, wherein a component ratio of the ?-phase in the brass is greater than 50 vol % and 55 vol % or less.

An electric discharge machining wire includes a core material composed of brass with zinc concentration of more than 40 mass %, and a coating layer provided around the core material. The zinc concentration of the coating layer is higher than the zinc concentration of the core material.

An electric discharge machining wire includes a core material composed of brass with zinc concentration of more than 40 mass %, and a coating layer provided around the core material. The zinc concentration of the coating layer is higher than the zinc concentration of the core material.

A wire electrical discharge machine includes a filter for removing machined swarf produced by electrical discharge machining from a working fluid, and a heating device for heating the working fluid stored inside the filter.

A wire electrical discharge machine includes a filter for removing machined swarf produced by electrical discharge machining from a working fluid, and a heating device for heating the working fluid stored inside the filter.

A fine hole electric discharge machine includes a machining tank, a storage tank, at least one pipeline, a guide base, a liquid current generator, and a controller. The at least one pipeline has at least one opening directed to the upper surface of a workpiece and allows machining liquid to flow through. The liquid current generator selectively forms a first liquid current in which the machining liquid is supplied from the storage tank and jetted from a predetermined opening of the opening, or a second liquid current in which the machining liquid is sucked from an opening the same as or different from the predetermined opening and recovered to the storage tank. The controller controls the liquid current generator to form the first liquid current or the second liquid current.

Electroerosion devices and methods for performing electroerosion machining are disclosed. The electroerosion devices may perform simultaneous electrical discharge machining and pulsed electrochemical machining (S-ED/PEC) through the use of at least two different types of electrodes and a quasi-dielectric working fluid.

Electroerosion devices and methods for performing electroerosion machining are disclosed. The electroerosion devices may perform simultaneous electrical discharge machining and pulsed electrochemical machining (S-ED/PEC) through the use of at least two different types of electrodes and a quasi-dielectric working fluid.

An electrode applied in electro-machining processes, where the electrode includes a main body portion and at least one built-in internal flushing passage for introducing a flushing liquid to a volume between the electrode and a workpiece to be machined. The electrode is made by an additive fabrication process that enables specialized flushing for enhancing waste material evacuation and incorporate special material properties like zones of high electrical conductivity and thermal resistance. The fabrication process produces materials and geometries that could not otherwise be made using conventional processing.