An electric discharge machine (EDM) is a processing equipment that utilizes pulsed current to generate an electric discharge between the workpiece and the electrode, thereby achieving material removal. It is suitable for hard metals, complex-shaped parts, and workpieces that are difficult to process using traditional cutting methods. The equipment operates through non-contact discharge machining, which is not limited by material hardness and capable of processing fine structures, deep cavity molds, and high-precision parts. During the machining process, the workpiece experiences minimal force and the heat affected zone is small, facilitating the maintenance of machining accuracy and surface quality. EDM machines are commonly used in mold manufacturing, machining, electronics industry, and other fields, providing reliable processing solutions for the manufacturing of complex parts.