Abstract
Abstract Ti6Al4V is a widely used grade-V, alpha-beta phase Titanium alloy. As it is a high strength material, machining of Ti6Al4V with the help of conventional processes is very difficult. That’s why, non-conventional machining processes, like electro-discharge machining process (EDM), have been chosen to machine this material. EDM is an electro-thermal, non-traditional machining process where spark is generated in between tool and workpiece to machine conductive materials by melting and vaporization. In case of EDM the strength of the workpiece material has no influence on machining, rather machining depends on thermal properties of the material. The main difficulty faced in EDM is the accumulation of debris in the machining zone which hampers the stability of the machining and finally hampers the machining characteristics. In the present research, a simple and cost-effective method using tapered tool, has been introduced to counter this problem. In this paper, the effect of tool taper angle, as well as peak current (Ip), pulse-on-time (Ton), duty factor (Tau) and flushing pressure, on material removal rate (MRR) and diametric overcut (DOC), have been investigated
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