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EDM is a new process completely different from mechanical processing. Its characteristics are suitable for industrial production and processing in the field. With the development of industrial production and the progress of science and technology, new materials with high melting point, high hardness, high strength, high brittleness, high viscosity and high purity are constantly appearing. There are more and more workpieces with various complex structures and special process requirements, which makes traditional machining methods impossible or difficult to process. Therefore, in addition to further development and improvement of mechanical processing methods,edm machining service people also strive to find new processing methods. EDM can adapt to the needs of production development and shows many excellent properties in applications. Therefore, it has been rapidly developed and increasingly widely used. So what are the characteristics of EDM


1. The pulse discharge has high energy density, which is convenient for processing special materials and complex-shaped workpieces that are difficult or impossible to process with ordinary mechanical processing methods. Not affected by the hardness of the material, and not affected by the heat treatment conditions.


2. The duration of pulse discharge is extremely short, the conduction and diffusion range of heat generated during discharge is small, and the range of material affected by heat is small.


3. During processing, the tool electrode does not contact the workpiece material, and the macroscopic force between the two is extremely small. The tool electrode material does not need to be harder than the workpiece material, so the tool electrode is easy to manufacture.


4. The structure of the workpiece can be reformed, the processing technology can be simplified, the service life of the workpiece can be improved, and the labor intensity of the workers can be reduced.


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