This paper studies the effect of magnetic abrasive flow machining process on internal finishing of the Al-6061-based hybrid composites tubes reinforced with SiC, Al2O3, and rare earth particulates. The characteristics of internal finishing for getting a mirror-like surface are influenced by the nature of magnetic abrasive particles. A novel systematic methodology to identify the optimal MAF process parameters is presented in present work. Moreover, effects of process parameters, namely, extrusion pressure and number of cycles on surface roughness, have also been investigated. An experimental study was carried out on Al-6061 hybrid composites containing wt% of SiC and Al2O3 from 5 to 15% and CeO2 from 0.5 to 2.0%. The results obtained from the roughness profile curve shows that at extrusion pressure of 20.68 bar least percentage improvement in surface roughness occurred whereas, at 48.26 bar, maximum improvement in surface roughness occurred with the use of magnetic field intensity.
Magnetic Abrasive flow Machining Box–Behnken Design Finishing
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