Abstract
Electrical discharge machining (EDM) confirmed its importance in the machining of hard and complex geometrical material which are difficult to machine or modified by traditional machining technique. The EDM process parameters – namely, pulse-on time, pulse-off time, current, voltage and dielectric medium – significantly influence the machining performance, such as surface traits, roughness and surface films. Therefore, in this study, the influence of EDM performance parameters on the metal removal rate (MRR) and surface roughness (SR) was examined. Experimentation was conducted according to the Taguchi L18 orthogonal array. Further, the analysis of variance (ANOVA) was employed for analyzing the S/N ratio results of the MRR and SR of various samples. The results revealed that cobalt (Co)–chromium (Cr) alloy substrates machined with a tungsten (W)–copper (Cu) electrode at the higher current setting (16 A, P on = 150 μs, P off = 150 μs) in EDM oil exhibited appropriate MRR and surface roughness value. Moreover, the EDM surfaces also exhibited suitable biocompatibility and excellent osseointegration.
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 callDisclaimer: 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.
