Analyzing the dimensional deviation in wire cut electric discharge machining of nickel aluminium bronze using molybdenum wire electrode

Abstract

Nickel aluminium bronze alloys are critically developed for applications in industries which provide optimized performance and economically greater alternative to other alloy metals. NAB alloys are easily fabricated in both conventional and non-conventional methods. In this work Molybdenum wire of high tensile strength, solid electrical discharge, smooth finish, high cutting speed, long life, and so on describe wire for wire cutting applications. Molybdenum wires have properties like high precision, control of line tolerance is less than 0 to 0.002 mm. The four critical information factors, for example, beat on schedule, beat off time, current and wire strain are taken as info factors and material expulsion rate and kerf width as the yield factors. To locate the ideal factors, Taguchi's L9 symmetrical exhibit and Signal to Noise (S/N) proportion investigation are utilized in the current work. Rate commitments of reaction factors are likewise assessed from the S/N ratio, the diagram shows that the beat off and wire pressure have the most significant reaction for acquiring higher MRR and kerf width, trailed by beat on schedule and current. SEM image shows the interactions created by the WEDM in NAB alloys and the responses of input and output variables are well established.