CONSTRUCTIVE SOLUTIONS FOR HYDROSTATIC EQUIPMENT USED AS FEED MOTION REPLICATE AT ELECTRICAL DISCHARGE MACHINING.

The paper reveals the technical solutions adopted for the design of hydrostatic equipment to replicate the electro discharge machining feed motion. Such equipment is very usefully in, at least two cases. A first case is when machining by electro discharge in difficult angular positions, in order to avoid using special fixturing devices. Using such device can result in significant costs reduction. A second case refers to the case of machining oversized workpieces, which cannot be installed on medium or small sized usual electro discharge installations. Based on functional specifications and elaborated technical documentation, a fully functional model was achieved. Experimental tests revealed a good accordance between the performance requirements and measured ones. The equipment is working properly, from the point of view of EDM system command response both in continuous and pulsed regimes. Further researches should be carried out on equipment with multi-place operation mode. [ABSTRACT FROM AUTHOR]