Author : Rui Wang, Pyo Lim and Sang Don Mun

The research aims to focus on the smooth surface of material, due to the development of the high technologies, in which a surface is finished by removing the material in the form of microchips by abrasive particles in the presence of magnetic field in the finishing zone. The inner surface of Al 6063 pipe was used as the workpiece and finished through a new improved mini lathe by using four experimental methods. The workpiece was finished by magnetic abrasive finishing (MAF) process in some different experimental methods such as, different magnetic abrasive mixed radios, different workpiece rotational speeds, different magnetic pole arrangements and different magnetic pole shapes, the best experimental combination in this study can be found by using the analysis of variance (ANOVA) and multiple comparisons. The experimental data were analyzed using analysis of variance and multiple comparisons to understand the contribution of various process factors on process response. Optical microscope images have been obtained to study the surface morphology of the finished workpiece. Regression model was developed to predict the trend of change in surface roughness in terms of significant experimental parameters.

Keywords: Magnetic abrasive finishing (MAF), Al 6063 pipe, Inner surface roughness, Analysis of variance (ANOVA), multiple comparisons

Article published in International Journal of Current Engineering and Technology, Vol.7, No.3 (June-2017)