Effect of Wire Materials on Cutting Performance of WEDM for Machining of Inconel Superalloy
The machining of superalloys has put really a challenge for technologists and researchers. The conventional techniques of machining do not give satisfactory performance for machining of superalloys. In this paper, the results of an experimental study for cutting of Inconel 718 superalloy with wire electrical discharge machining (WEDM) have been presented. Three different wire materials along with important input process parameters namely peak current, servo voltage, pulse on time and pulse off time have been selected. The effect of these parameters on material removal rate has been investigated by using well know experimental technique called response surface methodology. The experimental results indicate that zinc-coated brass wire is most suitable for Inconel 718. An empirical model has been developed for correlating input parameters and material removal rate for zinc-coated brass wire. Analysis of variance has also been presented.
R. K. Garg et al., "Effect of Wire Materials on Cutting Performance of WEDM for Machining of Inconel Superalloy", Applied Mechanics and Materials, Vol. 624, pp. 124-128, 2014