Investigation towards surface roughness & material removal rate in Wire-EDM of aluminium alloy 6061 and 5083 using Taguchi method

Abstract

Wire-electro discharge machining (WEDM) is a spark degeneration operation utilized for creating intricate patterns and profiles by means of electrically conductive materials employing wire electrode. The level of exactness and fine surface completions of the work-piece is important for the uses of particular complex segments. Other than WEDM, the manufacturing of accurate shapes and dimensions requires a lot of hours by a usual operations. Surface roughness together with material removal rate in WEDM is of critical significance. The current investigation exhibits, the impact of WEDM specifications about surface roughness plus material removal rate on aluminium alloy (AA) 6061 and aluminium alloy (AA) 5083 are explored and single objective method is utilized for parametric optimization. The study utilizes Taguchi's robust design methodology by considering, orthogonal matrix L9, S/N ratio, and ANOVA. For experimentation, pulse on time, pulse off time as well as peak current are utilized as primary variable numeric. The outcomes show that the major important elements that influence the surface roughness are Pulse on time together with Pulse off time in case of AA 6061 likewise the major important elements that influence the surface roughness are pulse off time with peak current in case of AA 5083.