Open AccessOptimization and modeling of Electrical Discharge parameters on Machining of Stavax Steel
Author(s) -
P Srinivasa Rao and Prof. Eshwara Prasad Koorapati
Publication year - 2020
Publication title -
international journal of modern trends in science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-3778
DOI - 10.46501/ijmtst061110
Subject(s) - electrical discharge machining , taguchi methods , machining , surface roughness , orthogonal array , materials science , mechanical engineering , design of experiments , electric discharge , pulse (music) , response surface methodology , linear regression , engineering , voltage , composite material , metallurgy , statistics , electrode , mathematics , electrical engineering , chemistry
This work focuses on the use of the Taguchi method in order to find out the optimized parameters of theprocess like discharge current, pulse on time and pulse off time on the machining features such as materialremoval rate(MRR), surface roughness(SR) & tool wear rate(TWR) on Stavax Steel by means of ElectricalDischarge Machining(EDM). It is also intended to study the individual influence of parameters on theperformance characteristics. The dielectric fluid circulating system is modified to conduct the experiments.The analysis of variance (ANOVA) is made to recognise the importance of parameters on the response. Byusing non-linear regression analysis the empirical models are developed in order to predict theseperformance characteristics and the confirmation test was conducted at the optimal parameters settings tocheck the optimum expected values of performance features. Detailed analysis by using ANOVA is done andcame out with the findings as a pulse on time is the most significant process parameter, next is the dischargecurrent and the insignificant parameter is the pulse off time. Machining surface morphology was studied andobserved that crater size is large and deeper due to a large amount of metal is melted and vaporized at theoptimum condition of MRR.