Abstract
Wire Electric Discharge Machining (WEDM) process is used for machining various materials used in applications that require dimensional accuracy, high surface finish and have intricate shapes. This work includes the study of WEDM process when dielectric fluid is mixed with combination of two metallic powders viz. Silicon Carbide and Aluminium Oxide. The effect of this powder mixing on Material Removal Rate (MRR) and Surface Roughness (SR) is being analysed and optimum level of control parameters is found out. AISI D3 which is also called as die steel is used as workpiece material. Distilled water (30 TDS) is used as dielectric fluid and Zinc cozted Brass wire (CuZn37) is used as wire electrode. DOE is done using Taguchi. Significant parameters are found out using ANNOVA. Lastly GRA is used to find optimum set of parameters.
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