• P.Leela Krishna
• P. Charan Theja
• M.Chandra Sekhara Reddy

This Research paper proposes optimal process parameters for Aluminium-7075 alloy metal on Wire cut Electrical discharge machine(WEDM). Aluminum alloys used for aeronautical applications are machined by using WEDM to obtain minimum taperness. A series of experiments are developed to investigate the effect of machining parameters such as Pulse on Time (TON), Pulse off Time(TOFF),Wire Feed Rate(WFR) and Control of Speed(COS) on Taperness, Dimensional Deviation(DD), Wire Wear Rate(WWR) and Metal Removal Rate(MRR). Al-7075 alloy is machined into the Circular profile geometries. Optimization of process parameters is performed by using a Genetic Algorithm technique which is most powerful unconventional robust tool. A mathematical model was developed using regression equation. Finally, comparison done between experimental values and optimum values to obtain conformation, level greater than 95%. The optimum range of machining parameters to produce a quality cut the optimum responses identified for circular geometry the identifications are Pulse on Time-103, Pulse off Time -59.99, Wire Feed Rate-2.0497 mm/min and Control of Speed -71.2864% for optimum response.

WEDM, Genetic algorithm, Taperness, Al-7075 alloy, Wire Wear Rate, Dimensional Deviation and Regression equation.

"Optimization of WEDM Parameters for circular profile cuts during machining of Al-7075 Alloy", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.594-602, June 2019, Available :http://www.jetir.org/papers/JETIR1907R97.pdf

"Optimization of WEDM Parameters for circular profile cuts during machining of Al-7075 Alloy", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp594-602, June 2019, Available at : http://www.jetir.org/papers/JETIR1907R97.pdf