Abstract
In the present study, the new engineered metal matrix composites (MMC) Aluminum 4032 is reinforced with reinforcement particles Zrb2 and Tib2 in various Wt. % (0,2,4,6,8) at room temperature through the stir casting method. The reinforcement particles Zrb2 (Zirconium Boride) and Tib2 (Titanium Boride) influences the mechanical property and parameters such as material removal rate, tool wear rate and depth in EDM machining process. Initially, the mechanical property such as tensile, compressive and hardness value has been measured for the Al 4032 composite alloy and it proves that increase in mechanical strength is due to the increase in reinforcement particles. Electrical discharge machining (EDM) is carried out on the composite alloy Al 4032 with tool as copper electrode where input parameters such as Pulse ON, (μS) Pulse OFF (μS) Current (Amps) is provided initially to set up the machining process. To identify the optimize process parameter in EDM machining process which influence to obtain minimum material removal rate (MRR), tool wear rate (TWR) and depth (Depth), the Taguchi L25 orthogonal array is used. The analysis of variance (ANOVA) was used to investigate the percentage of contribution by each parameter. The variation of current (amps), Pulse ON, Pulse OFF of the Al 4032 composite have been measured with the function of three parameter such as MRR, TWR and depth.
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