What is electrical discharge machining and how does it work?
Electrical Discharge Machining (EDM) is a controlled metal-removal process that is used to remove metal by means of electric spark erosion. In this process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the desired shape.
What is the principle of EDM?
Working principle: The principle of working of EDM is based on the erosion of the material by repetitive sparks between the workpiece and the tool submerged in a bath of the dielectric medium.
What does EDM stand for in machining?
Electrical discharge machining
Electrical discharge machining (EDM), also known as spark machining, spark eroding, die sinking, wire burning or wire erosion, is a metal fabrication process whereby a desired shape is obtained by using electrical discharges.
What are the application of EDM?
The EDM process is most widely used by the mold-making, tool, and die industries, but is becoming a common method of making prototype and production parts, especially in the aerospace, automobile and electronics industries in which production quantities are relatively low.
What are the advantages of EDM?
Advantages of EDM – Part Geometry / /
- Thin walls are possible.
- Cut internal corners with very small radii.
- Cut thin slots in extrusion dies with wire EDM.
- Produce blind and high aspect ratio pockets with sinking EDM.
- Produce non-round openings and cavities.
- An alternative to broaching for 2D shapes like gears.
What is the difference between EDM and wire EDM?
The wire-cut EDM machine is operated by a CNC control instrument that can control the wire on a three-dimensional axis for greater flexibility. Conventional EDM cannot produce narrower angles or more complex patterns, while wire-cut EDM can be performed. A more precise cutting process allows for more complex cuts.
What are types of electrical discharge?
The three main types of electrical discharge machining are wire EDM, sinker EDM, and hole drilling EDM. Each type relies on the same underlying principle of high-energy erosion, but they differ based on the electrode that’s used.
What are the types of electrical discharge machining?
Electric discharge machining can be divided into three common types, Die sinking EDM, Wire EDM and hole drilling EDM.
What is a 3 types of EDM?
What is electric discharge CNC machine?
Electrical discharge machining (EDM) is a non-traditional machining process based on removing material from a part by means of a series of repeated electrical discharges between tools, called electrodes, and the part being machined in the presence of a dielectric fluid.