Authors : Shakir M. Mousa and Kamil J. Kadhim
Abstract: The effect of Magnetic Abrasive Finishing (MAF) method on the Temperature rise (Tr) and the surface Roughness (Ra) has been investigated in this research by determining the optimum temperature through the optimum surface roughness to improve the quality of surface layer for CuZn28 brass alloy plates. Sixteen runs were done in order to determine the optimum temperature in the contact area (between the abrasive powder and surface of workpiece) and the change in the surface Roughness ()Ra) according to Taguchi Orthogonal Array (OA). Four technological parameters (cutting speed, finishing time, working gap and the current in the inductor) with four levels for each parameter have been used, the matrix known as a L16 (44) OA. The Signal to Noise (S/N) ratio and Analysis of Variance (ANOVA) techniques were performed for analysing results of Tr and )Ra using the statistical software (MINITAB17), to establish the best optimum condition and identify the significant parameters affecting on the temperature rise and surface roughness. The modern and powerful technique IR camera was used to measure the temperature while scanning electron microscopy was utilized to study the texture of finishing surface. The results showed that the optimum temperature in contact area of workpiece is (55.1°C) and the most significant factor for CuZn28 brass effect on )Ra for MAF process was the cutting speed followed by current in the inductor, finishing time and working gap.
Shakir M. Mousa and Kamil J. Kadhim, 2018. Temperature and Surface Roughness in Magnetic Abrasive Finishing Process for CuZn28 Brass Alloy. Journal of Engineering and Applied Sciences, 13: 1798-1803.