The problem approached in this paper refers to designing a device for wire electrical discharge machining (EDM) which can be used on a ram electrical discharge machine. Usually, wire electrical discharge machine is applied only on specialized electrical discharge machines. The device proposed in the paper will ensure widening the technological possibilities of the given ram EDM equipment. A principle schema of the device was established, after analyzing the main requirements specific to the device service. One took into consideration a possibility to rotate and fix the subassembly for guiding the wire electrode so that the active zone of the wire tool electrode has a horizontal, vertical or even inclined position. Another requirement was to ensure a way for achieving machining processes in cavities existing in workpieces of higher dimensions. Functioning of the designed device and strain resistance of some components were tested by using CATIA V5 software. Some optimization possibilities for this constructive solution of the device were identified.
Coatings-electrodes for processing dielectric aluminum oxide ceramics on a wire electrical discharge machine