Dataset on optimization of EDM machining parameters by using central composite design

Abstract

Newly prepared titanium alloy (Ti-13Zr-13Nb (TZN)) using powder metallurgy is considered in this investigation. Titanium alloys (TZN) are used in hip and knee replacement for orthopedic implants. Conventional machining, TZN alloys produce higher tool wear rate and poor surface quality, but this can be reduced by Electrical Discharge Machining (EDM) method. Moreover, EDM produce good biological and corrosion resistant surface. In this research, experiments were conducted by considering the influential process factors such as pulse on time, pulse off time, voltage, and current. The experiments were designed based on Response Surface Methodology (RSM) of face centered central composite design. Analysis of Variance (ANOVA) was conducted to identify the significance process factors and their relation to output responses such as Electrode Wear Rate (EWR), Surface Roughness (SR) and Material Removal Rate (MRR). Further, an empirical model was developed by RSM in order to predict the output responses.

A Comparative Study of Linear, Random Forest and AdaBoost Regressions for Modeling Non-Traditional Machining

“…An experimental dataset on EDM machining parameters by using the central composite design reported by Soundhar et al [31] is considered in this case study. Titanium alloy (Ti-13Zr-13Nb), i.e., TZN, was used as the work material for EDM machining.…”

“…Production of TZN can be done using different processes like the blended elemental method, cold uniaxial pressing, cold isostatic pressing and vacuum sintering. Soundhar et al [31] used a hydrated-dehydrated process for making titanium powder. The detailed method followed by Soundhar et al [31] is as follows-titanium powder was produced using a vertical furnace at a temperature of 500 • C and timing of 3 h with positive pressure.…”

“…Soundhar et al [31] used a hydrated-dehydrated process for making titanium powder. The detailed method followed by Soundhar et al [31] is as follows-titanium powder was produced using a vertical furnace at a temperature of 500 • C and timing of 3 h with positive pressure. Further on, at ideal room temperature, the hydrate was granulated in a niobium container under a vacuum of 10-2 torr.…”

“…For the machining process, TZN alloy of specimen size 20 mm in diameter and length of 35 mm was used by Soundhar et al [31], and graphite electrode of 10 mm for having higher MRR and lower EWR was used. Commercial grade kerosene was used as a dielectric fluid to flush off the unwanted particle in the EDM.…”

Analysis, predictive modelling and multi-response optimization in electrical discharge machining of Al-22%SiC metal matrix composite for minimization of surface roughness and hole overcut

“…Under such circumstances, the effective utilization of experimental, modeling, and optimization methodology make possible a more considerable improvement in decision-making with a new technological solution that can simultaneously satisfy and control the several distinctive as well as contradictory objectives (multi-objective) in order to make the EDM process an excellent choice for machining of advanced metal matrix composite materials. Several statistical and computational approaches such as RSM [16][17][18][19][20][21], ANN [22][23][24][25][26][27] have been applied for predictive modeling and Taguchi method [28][29][30][31], GRA [32][33][34][35][36], desirability function approach of RSM [37][38][39][40], and PCA [41,42] have been employed for parametric as well as process optimization in electrical discharge machining. Extensive studies have been reported by employing various experimental designs, modeling techniques and optimization approaches in order to assess or investigate the machinability [43][44][45][46], to predict the various technological responses, and to control the process parameters in machining of different workpiece materials (AISI D2, D3, D6, MDN 300, AISI 316L, stainless steel, A 2 tool steel, grey cast iron, Inconel 600, 601, 625, 825, 718, Ti6Al4V, Ti13Zr13Nb, nickel alloy, Al7075, Al6061, Al6063 alloy, Al-SiC MMC, Si 3 N 4 -TiN MMC, Al-Mg 2 Si, WC, polycrystalline diamond).…”