• Puttur Neelakantam Vani
• K. Arun
• . M. Chandra Sekhara Reddy
• M,Madduleti

Wire Electro - Discharge Machining (EDM) is a metal-working process whereby material is removed from a conductive work piece by electrical erosion. This project work focuses on finding out the optimum parameters in Wire - EDM for machining of Inconnel 718. The major application of the Inconnel material is in the aerospace industry, both in airframes and engine components. Biocompatibility of Inconnel is excellent, especially when direct contact with tissue or bone is required. Input process parameters that are taken into consideration are wire feed rate, Pulse on time, Pulse off time, Peak current, and Servo voltage. Output parameters are Material removal rate (MRR), Kerf width and Surface roughness (SR) are measured. Also different wire materials like Half Hard Brass wire, Zn-Coated Brass wires are used in this experiment. For design of experiment Taguchi methodology of L18 orthogonal array is used. From the experiment, it can be conclude that Zn-Coated Brass wire is desirable for maximum MRR and minimum SR with good surface integrity, but Half Hard Brass wire is desirable for minimum Kerf width. An excellent combination of better flush ability, high mechanical strength and good electrical conductivity are the advantages of Zn-Coated Brass wires in contrast to Half Hard Brass wire.

Key words : wire feed rate, Pulse on time, Pulse off time, Peak current, and Servo voltage. Material removal rate (MRR), Kerf width and Surface roughness (SR).

"OPTIMIZING THE PROCESS PARAMETERS OF EDM USING TAGUCHI METHOD AND ANOVA ON INCONEL 718", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.487-494, December-2018, Available :http://www.jetir.org/papers/JETIR1812B62.pdf

"OPTIMIZING THE PROCESS PARAMETERS OF EDM USING TAGUCHI METHOD AND ANOVA ON INCONEL 718", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp487-494, December-2018, Available at : http://www.jetir.org/papers/JETIR1812B62.pdf