Abstract
The present study highlights a multi-objective optimization problem by applying utility concept coupled with Taguchi method through a case study in electric discharge machining of D2 steel by using electrode produced by direct metal laser sintering (LS). The study aimed at evaluating the best process environment which could simultaneously satisfy multiple requirements such as tool wear rate, material removal rate, and surface roughness. As traditional Taguchi method cannot solve a multi-objective optimization problem, to overcome this limitation, utility theory has been coupled with Taguchi method. Depending on Taguchi’s lower-the-better and higher-the-better criteria, individual response characteristics have been transformed into corresponding utility values. Individual utility values have been added finally to compute overall utility degree which serves as representative objective function for optimization using Taguchi method. The present study combined utility theory and Taguchi method for predicting optimal settings. Optimal result was verified through confirmatory test. This indicates application feasibility of the aforesaid methodology proposed for multi-response optimization and off-line control of multiple quality characteristics in electric discharge machining using electrode produced by direct metal LS.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.