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Abstract:

A new metal removal process using a rotary brush as the hot electrode has been presented. The process of electrodischarge machining with brush electrodes in water-glass is a type of surface machining process of electrically conductive materials. The process is used to remove the excess material and to smooth the machined surface. The use of brush electrodes makes the process cost-effective because it reduce the time needed to machine large parts. Proper parameter settings, hot electrode material and the type of power supply generator help to control the intensity of phenomena occurring in the machining zone in order to achieve the desired properties. The process allows both the removal of burrs and flushes and the blunting of the sharp edges without damaging or undercutting the machined surface. An exceptional properly of brush electrodes is that they make it possible to produce a uniform layer which firmly adheres to the core and has a high content of alloy components.

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Comparative studies of brush electrodischarge machining with electrodes of alloy steel and tungsten