Magnetic abrasive finishing of inconel 718 super alloy using permanent magnet

1Lecturer, Dept. of Mechanical Engineering, Pandit Deendayal Petroleum University, Gujarat, India 2Lecturer, Dept. of Industrial Engineering, Pandit Deendayal Petroleum University, Gujarat, India country ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The demand of Inconel metal (Nickel based super alloy) has rapidly increased due to its better properties, light weight and variety of industrial application. In this present work, MAF setup is designed for finishing typical flat workpiece of Inconel 718 super alloy. The unbounded powder is prepared for experimentation by homogeneous mixing of ferromagnetic particle (Iron powder of 350# mesh size) and abrasive particle (Silicon carbide powder of 600# mesh size). In order to provide magnetic field Nd-Fe-B (Neodymium Iron Boron) magnet of 0.52 Tesla are used to carry out the experiment. Effects of working gap, circumferential speed and the mixing ratio of iron powder and abrasive powder on percentage change in surface in surface roughness (% ΔRa) have been studied. Series of experiments have been conducted using in-house fabricated setup by using Taguchi L9 orthogonal array. ANOVA table is used to find out the significant Process parameter. It has been observed that working gap and speed are significant process parameters.