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EDM technology is a new process using electric energy and heat energy, commonly known as discharge machining.

The difference between EDM technology and general machining in the EDM tool and the workpiece does not contact, but by the tool and the workpiece continuously produced by pulsed discharge, partial discharge, using the instantaneous high metal removal step by step down, in the discharge process of a visible spark, it is called edm.

The necessary conditions for EDM technology are:
1.Pulse power must be used
2.The tool electrode and the workpiece must be kept a certain gap between the machined surfaces
3.Discharge must be carried out in a liquid medium with certain insulation properties.

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