Magnetic abrasive finishing(MAF) seminar report/pdf/ppt download
Abstract : Study of new and cost effective finishing processes has always been an area of keen interest to overcome the difficulties of existing finishing process.
Magnetic Abrasive Finishing (MAF) is a process in which a mixture of non-ferromagnetic abrasives and ferromagnetic iron particles is used to do particles in the mixture are magnetically energized using a magnetic field.
The iron particles form a lightly rigid matrix in which the abrasives are trapped. This is called Flexible Magnetic Abrasive Brush (FMAB), which when given relative motion against a metal surface, polishes that surface.
The major studies concerning MAF have been done regarding the behaviors of the process under the effect of various parameters like working gap, mesh number of abrasive, speed of relative motion on cylindrical and flat work-pieces taking one type of material, non-ferromagnetic or ferromagnetic only.
But limited comparative study by taking stainless steel with ferromagnetic behavior has been done to analyze the surface roughness that is generated during the process.
This paper has aim of development of Magnetic Abrasive Finishing Process & studying the effect of the process parameters (percent composition of iron powder, mesh during MAF of ferromagnetic S.S. work-piece material for flat work-pieces.
The results of the experiments are statistically analyzed using design expert v.7 software for the responses generated during the process.
In case of ferromagnetic work-piece, percent composition of iron powder has more effect than the other parameters. With increase in mesh size of abrasive, percent improvement in surface roughness increases.
With increase in current the percent improvement in surface roughness value increases much more than the other parameters, therefore effect of applied current is seen to the most significant amongst all the parameters.
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