Magnetic Field Assisted Finishing of Ferromagnetic Air Compressor Cylinder Using Smart MR Polishing Fluid

Nano-finishing of mechanical components enhances their service life by minimizing friction and their working temperature. Especially for components having piston-cylinder arrangements such as air compressors, engines and hydraulic cylinders, better surface finish enhances their service life. In the present study, a new setup for nano-finishing of ferromagnetic air compressor cylinder based on Magnetic Field Assisted Finishing process is presented. Enhanced magnetic field intensity and uniform flux density is achieved by using diametrically magnetized magnets. As compared to axially magnetized magnets these magnets provide uniform distribution of magnetic flux over the work piece surface which is essential to achieve better surface finish. Simulation using AnsysMaxwell (R) is carried out to study the magnetic field distribution and to design the tool for finishing. The experimental results also support the potential and validity of the new setup.