Comparison of Performance by Same Abrasive Using Various Samples Prepared by Different Techniques upon Magnetic Abrasive Finishing Machine

Magnetically Assisted Abrasive Finishing (MAAF) processes are most suitable for obtaining quality finish on plane, internal and external cylindrical surfaces of metallic as well as non-metallic materials. These products are highly demanded in modern industrial applications. In spite of remarkable results of MAAF processes, the major constraint towards wide spread use of this technology is the non availability of suitable magnetic abrasives. The available manufacturing techniques for preparing magnetic abrasives are time consuming and complicated. The main aim of the present work is to prepare magnetic abrasives by making use of Microwave Sintering and Mechanical Attrition. Magnetic abrasives are prepared by mixing iron powder and Al2O3 sintered by microwave heating followed by crushing and secondly by mechanical alloying. Experiments have been conducted to evaluate and compare the performance of microwave sintered magnetic abrasives and mechanically alloyed magnetic abrasives. It is observed 15% of Al2O3 and 85% of iron gave best performance. Best performance for Al2O3 and iron was obtained 60 % for microwave sintered and 51 % obtained for mechanically alloyed magnetic abrasives.