Experimental investigations and optimisation of process parameters in micro-EDM with multiple performance characteristics Online publication date: Sat, 11-Oct-2014
by N. Natarajan; R.M. Arunachalam
International Journal of Experimental Design and Process Optimisation (IJEDPO), Vol. 2, No. 4, 2011
Abstract: This study investigates the optimisation of process parameters of micro electric discharge machining (micro-EDM) for stainless steel grade 316 (SS 316) on the machining characteristics using the Grey relational analysis (GRA) method. Experiments based on the orthogonal array (OA) of Taguchi method have been carried out. The multi-response optimisation of the process parameters viz. material removal rate (MRR), tool wear rate (TWR), Diametral OverCut (DOC) and Taper (T) has been performed. By analysing the Grey relational grade matrix, the degree of influence of each process parameter on individual quality target can be measured. The current is identified to be the most influential factor of the MRR, TWR and the T. In addition, the analysis of variance (ANOVA) is also carried out to identify the most significant factor. In depth studies have also been made to examine the influence of various process parameters through SEM micrographs of machined micro-hole.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Experimental Design and Process Optimisation (IJEDPO):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook