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Electrical Discharge Machine, EDM is one of the most accurate manufacturing processes available for creating complex or simple shapes and geometries within parts and assemblies.

Electrical discharge machines (EDM) remove metal from a workpiece by using a series of electric sparks to erode material. An electrical discharge machine is considered to be the most precision oriented manufacturing process and is widely used for creating simple and complex shapes and geometries. EDM machining is favoured in situations where high accuracy of work and the low count is required. An EDM machine consists of a workpiece and the wire electrode. A workpiece is sometimes dipped in a dielectric to develop a potential difference between the workpiece and wire electrode. Electrical discharge machine supply is applied to the workpiece. Electrical discharge machines (EDM) work by eroding the material that appears in the electrical discharge path. This material is responsible for generating an arc between the workpiece and wire electrode. The wire electrode rotates acts as wire EDM tooling and rotates a two-three axis and cuts the internal cavities in the workpiece. There are many types of electrical discharge machines (EDM). Examples include a CNC EDM and a wire EDM machine. A CNC EDM is a computer numerical control machine and is used for removing metal using electrical discharge spark erosion. A wire EDM machine is designed for precision machining purposes and is used for cutting prismatic metal components. Other electrical discharge machines (EDM) are commonly available.

There are several ways in which electrical discharge machines (EDM) function. Electrical discharge machines (EDM) are used where the fast turn around time is required. Electrical discharge machines (EDM) works by removing the workpiece that generates an arc with the wire electrode and creating a cavity in the workpiece. The dimensional accuracy required for an electrical discharge machine is + / – 0.0005 inches per inch. Electrical discharge machines (EDM) also require a 0.0003 feature profile accuracy across the workpiece cutting path. Electrical discharge machines (EDM) are designed and manufactured to meet most industry specifications.

Electrical discharge machines (EDM) are used in many applications. Electrical discharge machines (EDM) are widely used in the automobile industry, chemical industry, and the aerospace industry. In addition, electrical discharge machines (EDM) are also used in biological and ecological surveys. Electrical discharge machines (EDM) should adhere to Petrotechnical Open Standards Consortium (POSC) and Public Petroleum Data Model Association (PPDM) industry standards.