WEDM
Wire Electrical Discharge Machining, commonly known as WEDM or wire-cut EDM, is a non-traditional machining process that uses electrical discharges to erode material. It utilizes a thin, continuously moving wire electrode, typically made of brass or copper, to cut intricate shapes and profiles into electrically conductive materials. The wire is guided by a computer numerical control (CNC) system, allowing for high precision and complex geometries. A dielectric fluid, usually deionized water, surrounds the workpiece and wire, serving to cool the area, flush away eroded debris, and act as an insulator to initiate the electrical discharge. This spark erosion process creates tiny craters on the workpiece, gradually removing material. WEDM is particularly effective for machining hard metals, heat-treated steels, carbides, and superalloys where conventional machining methods are difficult or impossible. Its applications are widespread, including tool and die making, mold manufacturing, aerospace components, and medical devices. The accuracy and surface finish achievable with WEDM are significant advantages, making it a valuable tool in modern manufacturing.