(Faculty of Engineering, Federal University Oye-Ekiti, 2020-03-19) Agbonoga, E.A.; Adedipe, O.; Okoro, U.G.; Usman,. F.J.; Obanimomo, K.T.; Lawal,. S.A.
This study investigated the effects of process parameters of plasma arc cutting (PAC) of low carbon steel material using analysis
of variance. Three process parameters, cutting speed, cutting current and gas pressure were considered and experiments were conducted
based on response surface methodology (RSM) via the box-Behnken approach. Process responses viz. surface roughness (Ra) and kerf
width of cut surface were measured for each experimental run. Analysis of Variance (ANOVA) was performed to get the contribution of
process parameters on responses. Cutting current has the most significant effect of 33.43% on the surface roughness and gas pressure has
the most significant effect on kerf width of 41.99%. For minimum surface roughness and minimum kerf width, process parameters were
optimized using the RSM
