Optimization of Surface Roughness in WEDM Process Using Artificial Bee Colony Algorithm
نویسندگان
چکیده
This paper presents an investigation on the effect of machining parameters on the surface roughness (centre line average roughness: Ra) and the optimal combination of process parameter for minimum Ra in wire electrical discharge machining (WEDM) of EN 31 steel using artificial bee colony (ABC) algorithm. The experimental studies are conducted by varying discharge current, voltage, pulse on time and pulse off time based on central composite design (CCD) method. A mathematical model is developed for Ra using response surface methodology (RSM). From ABC analysis, the optimum combination of process parameters is obtained for minimum Ra. Also, surface and contour plots are generated to study the effect of input parameters on Ra. Finally, the surface characteristics caused by WEDM are analyzed by scanning electron microscopy (SEM) images.
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