741 Industrial Engineering Journal ISSN: 0970-2555 Website: www.ivyscientific.org A WEDM Investigation of Alumina-Metal Matrix Nanocomposites Fabricated by Non-Contact Ultrasonic Cavitation Method by Multi-Response Signal-to- Noise ratio (MRSN) Approach 1 Manoj kumar Mahapatra Research Scholar, Nano Science, Sambalpur University, Odisha Corresponding Author Email: manoj.siliconwest@gmail.com 2 Payodhar Padhi Director cum chairman (R & D) Hi-Tech Group of Institutions payodharpadhi@gmail.com 3 Jaydev Rana Veer Surendra Sai University of Technology, Burla, India, jranauce@yahoo.co.in 4 Biswajit Satpathy Sambalpur University, Burla, India, satpathybulu@gmail.com Abstract: The newly metal matrix Nano-composite (MMNC) of commercially pure Al reinforced with 0.5 wt.% Al 2 O 3 nanoparticles was prepared by non-contact ultrasonic cavitation method. The high resolution transmission electron micrograph shows uniform distribution and good dispersion of the Al 2 O 3 nanoparticles within the aluminum metal matrix. Wire Electrical discharge machining (WEDM) was employed to machine MMNC with brass wire electrodes. The machining parameter along with characteristics performance characteristics were simultaneously optimized using Taguchi’s multi response signal to noise ratio (MRSN) technique and the optimum process parameters have been reported. Moreover, ANOVA technique is used to determine the contribution of input variables for the overall machining performance. This MRSN technique is simple and does not require the help of any software for its implementation.is described in this paper. Keywords Metal matrix Nano composite (MMNC), Non-contact Ultrasonic cavitation, WEDM, MRSN and ANOVA Industrial Engineering Journal Volume 15 Issue 10 * October 2022