FORCE ANALYSIS DURING MAGNETIC ABRASIVE FINISHING PROCESS (MAF)

Abstract

The Magnetic Abrasive Finishing (MAF) process is the one in which material is removed in such a way that surface finishing and deburring are performed simultaneously with the applied magnetic field in the finishing zone. Knowledge of forces acting during MAF is important to understand the mechanism of material removal. Forces have direct influence on the generation of a finished surface and accuracy of the products. This work presents the designing of the electromagnet using Ansoft Maxwell and the experimental findings about the forces acting during MAF and provides correlation between process parameters and the forces. The resistance type force transducer (dynamometer) has been used. It is used to measure the normal magnetic force component responsible for micro indentation into the work piece and tangential cutting force component producing microchips. The force data have been recorded on computer using software called Dynoware. It is concluded that forces with increase in voltage to the electromagnet (or magnetic flux density) and decrease in the rotation speed given to the electromagnet.