Process parameters optimization of multiple response characteristics of WEDM on Inconel-825 super alloy using Fuzzy- Grey relational analysis is presented in this paper. Response characteristics such as MRR, surface finish and spark gap are optimized during wire EDM operation. Process parameters including pulse on time, pulse off time, corner servo voltage, flushing pressure, wire feed, wire tension, servo feed and spark gap voltage are investigated using Taguchi mixed L36 orthogonal array. These response characteristics are studied and examined using grey-fuzzy approach and optimal combination of influential input parameters are discovered. Based on the results of verification experiments it is concluded that Taguchi, Fuzzy-Grey Relational Analysis can efficaciously be used to find the optimal combination of influential input parameters of WEDM. Hence, this paper supports that the suggested approach can be a useful tool to ameliorate the performance of WEDM on Inconel-825.

Rajyalakshmi G

Department of Manufacturing Engineering

School of Mechanical Engineering

Vellore Campus

Ramaiah P.V.

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Indian Journal of Science and Technology

Aluminium ceramic (Al-Al2O3) is used comprehensively all over the world. In this paper, input parameters on Al-Al2O3 workpiece are applied to investigate the MRR and surface roughness by the process of wire electrical machining (WEDM).Four varying input parameters (Ton, Toff, Wf and Cs%) were tabulated for nine samples using L9 orthogonal array design technique whereas keeping wire tension as constant. Tool wear is calculated as the change in initial thickness and final thickness after cutting operation using screw gauge. The surface roughness is found using surface roughness tester.Minitab is used to plot the graph between input parameters against various output parameters. To find the impact of process parameters, ANOVA (Analysis of Variance) is used .

MATEC Web of Conferences

Optimization of WEDM process during machining of Al-Al2O3 composite using Taguchi based Grey Relational Analysis

Objectives: The present study investigated the parametric investigation of machinability parameters on the quality characteristics of force (Fz) and roughness (Ra) during the dry turning of Inconel 718 alloy. Methods/Statistical Analysis: Machinability experiments are carried out with PVD coated carbide with (KC5510) and without wiper (KC5525) insert at three speeds (60, 80, 100 m/min), two feed (0.06 and 0.10 mm/rev) and three cutting depth (0.4, 0.8, 1.2 mm) under dry cutting conditions. The experiments are planned based on Taguchi's L18 orthogonal array. The percentage contribution of the machinability parameters on quality characteristics is determined using analysis of variance test (ANOVA). Predictive regression equations are developed for the estimation of all the quality characteristics. Findings: From the experimental results, the most significant factor in case of both Fz and Ra is cutting depth during the turning of 718 Inconel alloy for both the inserts. The Pearson correlation (r) is evaluated whether the correlation is exists between the machinability parameters (speed; feed and cutting depth) on force and roughness. The results of calculated 'r' show that the cutting depth has a strong correlation with both quality characteristic trailed by the speed. Application/Improvements: In addition, the lower magnitude of Ra roughness is observed for KC5010 compared to insert designated with KC5525.

An Investigation of the Parametric Effects of Cutting Parameters on Quality Characteristics during the Dry Turning of Inconel 718 Alloy

European Journal of Operational Research

Prediction of index futures returns and the analysis of financial spillovers—A comparison between GARCH and the grey theorem

Journal of Materials Processing Technology

Effects of heat treatment on the surface of a die steel STD11 machined by W-EDM

The International Journal of Advanced Manufacturing Technology

Optimization of wire electrical discharge machining (WEDM) process parameters using Taguchi method

On the influence of cutting speed limitation on the accuracy of wire-EDM corner-cutting

Materials & Design

The optimal process conditions of an injection-molded thermoplastic part with a thin shell feature using grey-fuzzy logic: A case study on machining the PC/ABS cell phone shell

Application of Taguchi, Fuzzy-Grey Relational Analysis for Process Parameters Optimization of WEDM on Inconel-825

Journal	Indian Journal of Science and Technology
Publisher	Indian Society for Education and Environment
ISSN	0974-6846
Open Access	No