Abstract
Design and Performance Evaluation of Desktop Rod Electrode Discharge EDM Machine in Pure Water
Highlights
EDM (Electrical Discharge Machining) is a special processing method for etching the residual material of conductive workpiece by immersing the working fluid and connecting the two poles of the pulse power supply
Because it is difficult for small machine tools to realize high speed wire walking, in order to ensure that small machine tools can be processed normally and reduce wire breakage rate as much as possible 0.8 mm small diameter rod copper rod is used as electrode material, that is, rod electrode
A method commonly used in the field of machining in EDM, in which EDM wire cutting uses EDM etching reaction to cut workpiece, which can theoretically process any conductive material and belongs to non-contact machining
Summary
EDM (Electrical Discharge Machining) is a special processing method for etching the residual material of conductive workpiece by immersing the working fluid and connecting the two poles of the pulse power supply. Its machining principle is essentially the same as that of EDM: using moving wire (copper wire or molybdenum wire) as tool electrode to connect the negative electrode of pulse power supply. Conductive material or semi-conductive material to be processed parts connected to the positive electrode of pulse power supply, and add sufficient working fluid with good insulation between the poles. When the pulse power gives off a continuous high frequency pulse signal, a certain potential difference is formed between the tool electrode and the workpiece to be processed. According to the input NC program control processing to obtain a certain shape of the workpiece [4]
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