Investigations into the Effect of Varying Electrode Diameter on Cutting Rate and Kerf Width in WEDM of Varying Thickness Inconel718

Abstract

Wire electrical discharge machining of varying thickness Inconel718 plate of 8, 10, and 12 mm, which is widely used as aircraft turbine material having extremely good high-temperature characteristics, is done to investigate the effect of zinc-coated wire electrode diameter of 0.15, 0.20, and 0.25 mm on the cutting rate which is the most important economic considerations in the manufacturing and kerf width is known to be dimensional accuracy of the WEDM. The commonly used large diameter of wire we end with larger kerf width is not desirable in precision jobs. In the ocean of research on WEDM parametric effects, light is focused on the effect of using small diameter wire on cutting rate, checking its feasibility with high thickness plates and accuracy it gives. Taguchi L27 array has been used for experimental design. And further to that, ANOVA is done to find the most influencing factor. It is found that small wire diameter gives good cutting rate along with promisingly small kerf width.