Multi-performance optimisation in WEDM using Taguchi method embedded with utility concept
by P.C. Padhi; S.S. Mahapatra; S.N. Yadav; D.K. Tripathy
International Journal of Procurement Management (IJPM), Vol. 7, No. 1, 2014

Abstract: Traditional design of experiment approaches is suitable for single response problems. However, manufacturing industries need that products/processes must be evaluated based on the performance of several quality characteristics. In the present study, an investigation is made to simultaneously optimise two responses such as surface roughness and dimensional deviation in wire electrical discharge machining (WEDM) using utility concept coupled with Taguchi method. Experiments were conducted varying the process parameters namely pulse-on-time, pulse-off-time, wire feed, wire tension, spark gap, set voltage and servo feed. The machining parameter settings were determined using Taguchi's L27 orthogonal array. The individual surface roughness and dimensional deviation values are transformed into corresponding utility values. Individual utility values have been finally aggregated to compute overall utility degree which serves as representative objective function for optimisation using Taguchi method. The significance of the machining parameters is identified by analysis of variance (ANOVA) and the confirmation test has been conducted to validate the results. Experimental results reveal that the proposed method effectively improves the machining performance of WEDM process.

Online publication date: Fri, 30-May-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
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 Procurement Management (IJPM):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your 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