Electrical Discharge Machining (EDM) Machine ToolGenerally divided into four main categories: Category 1 is mainly used for processing various molds, cavities, and holes, accounting for about 80% of all EDM machine tools; Category 2 is EDM wire cutting machines, used for cutting parts and processing punches; Category 3 is EDM machines for boring and grinding threads, which have both linear feed and rotational motion of the tool electrode relative to the workpiece; Category 4 is EDM machines that can perform surface treatment on workpieces, such as electrical discharge engraving.

(1) EDM machine tool processing technology single electrode method uses a single electrode to process the workpiece, generally used for simple shapes with low precision requirements. Single electrode processing can also achieve rough, medium, and fine processing of the workpiece by oscillating the linear head.

(2) EDM machine tool processing technology multi-electrode method

Uses multiple electrodes for processing the same workpiece, generally divided into rough, medium, and fine processing in sequence.

(3) EDM machine tool processing technology decomposed electrode method

According to the geometric shape of the workpiece, the electrode is decomposed into several parts, using the main cavity electrode to process the main part of the cavity, and then using the auxiliary cavity electrode to process sharp corners, narrow seams, and other areas.

(4)Electrical Discharge Machining (EDM) Machine ToolProcessing standards

Rough processing generally uses a larger current and longer on time.

Medium processing generally uses medium current and medium on time.

Fine processing generally uses a smaller current, high frequency, and shorter on time.