New M.E.Thesis Submitted from Prod student

APPLICATION OF STAINLESS STEEL PIN AS A TOOL IN MAGNETIC ASSISTED FINISHING By Ashwani,Production
Abstract
Magnetic Abrasive finishing (MAF) is one of the promising technique for the finishing of surfaces. The magnetic abrasives are used as micro finishing tools in Magnetic Abrasive Finishing Process. As magnetic abrasives are not easily available the process is not fully utilized in commercial applications. The present work has been taken to develop an alternative magnetic tool for MAF which can be easily manufactured. One aim of this work is to investigate various process parameters of magnetic assisted finishing (MAF) process in the presence of the alternative tool consisting of tiny stainless steel pins. The pins are constructed from a cold rolled stainless steel wire. The present work has particularly taken to investigate into the length of the pins in order to make its use for finishing of internal surfaces of a metallic pipe In this study, A.C magnetic field has been used for generating magnetic flux around the work piece. An electromagnet capable of producing around 1 Tesla magnetic flux has been designed &fabricated and fitted in the experimental setup for carrying out experimental work. Various process parameters taken for the present work were magnetic flux density, machining time, rotational speed of the work piece and length of the pins. The performance has been measured in terms of surface finish and surface hardness of the internal finished surface of brass pipe. The performance of the process was observed to be the best at following values of process parameters [Magnetic Flux Density(0.8 Tesla), Machining Time (40 minutes), Length of Pin (ø 0.8 mm X 14 mm) and Rotational speed of the work piece (400 rpm)].

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