Effect of Permanent Magnetic Pole Orientation on Field Strength in Viscoelastic Magnetic Abrasive Finishing Process

Viscoelastic magnetic Abrasive Finishing is a new method which has evolved from traditional MAF process where an abrasive- Ferromagnetic laden media is used which provides an effective machining option. In this process,, along with an abrasive particles in presence of a viscoelastic medium is used to provide better surface finish as viscoelastic medium increases the bonding of ferromagnet particles with abrasive particles. In the present paper Ansys Maxwell 16.0is used to obtained the distribution of Fan shaped magnetics by using Magnetic field on the workpiece through which the effective surface of machining can be predicted. The pattern is obtained using combination of 4 magnetic poles taken 2,3 and 1 at a time by arranging them at different angles. After observing the pattern, it was found that the most effective machining would be done by taking 4 poles surrounding the workpiece as it would cover the entire surface of the workpiece and the combination of 3 magnet at an angle of 120 degree is effective when 3 poles are taken at a time. 90-degreeangle between the pole must be taken when we are using two poles as the magnetic field intensity is maximum in this combination.