Abstract
Wire-cut Electrical discharge machining process (WEDM) is frequently used for making the complicated shapes that are required for industrial applications. It is specially recommended for extremely hard materials and very small work pieces. There is no physical contact between tool and work piece, and therefore delicate sections and weak materials can be machined without any distortion. Among the many titanium alloy grades, Ti-6Al-4V has extreme strength, superior corrosion resistance as well as good weldabilty and fabricability. This alloy can be used in high temperature applications up to 400°C. However, this alloy cannot be machined by conventional machining process due to the strain hardening effect. The aim of current paper is to optimize the pulse on time, current, and wire speed on the material removal rate, kerf width and surface roughness in wire electric discharge machining of the Ti-6Al-4V alloy. The analysis of the result indicates that the machining parameters have significant influence on the responses. Regression equations for the all responses are generated using Minitab-17. This investigation helps to control the material removal rate, kerf width and surface roughness for the desired applications.
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