Abstract
This article presents an experimental study of material removal rate (MRR) and surface roughness characteristics of wire electrical discharge machining (WEDM) and the optimization of process parameters based on Taguchi method coupled with grey relational analysis for minimum surface roughness and maximum MRR. Experiments are carried out by utilizing the combination of process parameters viz. discharge current, voltage, pulse on time and pulse off time based on L27 Taguchi orthogonal array (OA). Analysis of variance (ANOVA) carried out and it reveals that current has the maximum contribution in controlling MRR and surface characteristics of WEDM. The interaction between voltage and pulse on time is also found to have significant contribution in MRR and surface roughness characteristics. The optimum combination of process parameters for maximum MRR and minimum surface roughness is obtained and the optimal setting has been verified through confirmatory test. The result shows good agreement between the predicted and experimental results. This indicates the utility of the grey-Taguchi technique as multi-objective optimizer in the field of WEDM. Also, variation of responses with process parameters are also studied using 3D surface plots. Finally, the microstructure analysis in the region of cutting surface is performed using scanning electron microscopy (SEM).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Materials Forming and Machining Processes
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.
