Influence of selected hydromechanical parameters of wedm machine on quality and cutting performance

The article presents the impact of selected hydromechanical parameters of Wire Electrical Discharge Machining (WEDM) on the quality and efficiency of cutting, i.e. the surface roughness and the material removal rate. Based on the literature analysis and own experience, the following parameters of the WEDM operation were considered: the wire feeding speed, the pressure of the dielectric fluid and the speed of the working head. Using the parameter values recommended by the machine manufacturer, preliminary tests were carried out. The cut out element was the satellite of the satellite mechanism being part of a low-power hydraulic motor. Observations of the tested surface determined the presence of numerous erosive craters on this surface. Based on the results obtained, three-dimensional charts were developed showing the impact of selected input parameters on the considered output factor. The conducted research may constitute the basis for optimization of the electro-erosion cutting process.