Magnetic Abrasive Finishing of AISI 52100

Abstract

Quality of surface is an important factor to decide the performance of manufacture product. Magnetic abrasive finishing is a procedure in which work piece surface is smoothened by removing the material as micro-chips by abrasive particles in the presence of magnetic field in the finishing zone. Given the flexible polishing effect in magnetic abrasive finishing (MAF), the precise and mirror like surface can be obtained during this process. The working gap between work piece and magnet is filled with abrasive particles, made out of ferromagnetic particles and abrasive particles (MAPs). These particles structure an adaptable magnetic abrasive brush (FMAB) which does not oblige dressing. Maps are either reinforced (sintered) or unbounded. MAF offers numerous preferences, for example, adaptability toward oneself, controllability also the finishing instrument oblige not recompense or dressing.

To improve grinding efficiency of the magnetic abrasive finishing (MAF) technique. A test study is done to enhance the surface roughness nature of the AISI 52100 steel utilizing magnetic abrasive finishing system. In this project four pole electromagnet used. An electromagnet can produce magnetic flux density 0-0.2T at 0-100V DC power source.

In the present examination on magnetic abrasive finishing (MAF) process, Taguchi Design of Experiments is connected to discover important parameters affecting the surface quality created. Important parameters affect on surface roughness have been examined. Mixture of iron particles (Fe particles of mesh no. 300, 320) and abrasive particles (SiC, Al2O3) having different mesh size. It has been observed that the increase in rotational speed, weight of abrasive in mixture and mesh number (iron particles and abrasive particles) improve the surface finish. The experimental result showed, that the MAF process using silicon carbide (abrasive material) has better finishing potential as compare to alumina (abrasive material).