Development of magnetic nanoparticle based nanoabrasives for magnetorheological finishing process and all their variants |
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| Affiliation: | 1. Centre for Sensors, Instrumentation, and Cyber-physical System Engineering (SeNSE), Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India;2. CSIR-Central Scientific Instruments Organisation, Chandigarh, 160030, India;3. School of Engineering, University of Lincoln, Brayford Pool, LN6 7TS, United Kingdom;4. Department of Textile Technology and Fiber Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India |
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| Abstract: | Efficacy and the outcome of the magnetorheological finishing (MRF) related processes depends on two crucial factors, (i) a finishing abrasive and (ii) a magnetic particle. However, the magnetic particles although necessary, become a hindrance for non-magnetic abrasive particles in directly reaching the surface to be finished. This study relates to the development of SPION-based smart material for MRF and all their variant processes. The SPION particles possess dual nature such as nanoabrasives and magnetic nanoparticle. The superparamagnetic property of the developed SPION particle has been confirmed by alternating gradient magnetometer with the saturation magnetization value of 82.23 emu/g. The polishing performance of the developed SPION-based particle as abrasive has been investigated on a BK-7 optical glass and the polishing is done via a 5-axes automated ball end magnetorheological finishing (BEMRF). The developed SPION abrasive enhanced the finishing process of the BEMRF technique and provided surface finishing on the BK-7 substrate up to the surface roughness (Ra) values of 22.3 nm with the Ra improvement of 88.14%. |
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| Keywords: | Magnetic abrasives MRF BEMRF SPION Magnetorheological fluid Optical glass MRF" },{" #name" :" keyword" ," $" :{" id" :" pc_tT9QXQLBH5" }," $$" :[{" #name" :" text" ," _" :" Magnetorheological Finishing BEMRF" },{" #name" :" keyword" ," $" :{" id" :" pc_Z7DvYJaiWq" }," $$" :[{" #name" :" text" ," _" :" Ball End Magnetorheological Finishing SPION" },{" #name" :" keyword" ," $" :{" id" :" pc_y3ki9FnsQI" }," $$" :[{" #name" :" text" ," _" :" Superparamagnetic Iron Oxide Nanoparticle CMP" },{" #name" :" keyword" ," $" :{" id" :" pc_8ZDJuPxWjZ" }," $$" :[{" #name" :" text" ," _" :" Chemical Mechanical Polishing MAF" },{" #name" :" keyword" ," $" :{" id" :" pc_NU8uQYlW5e" }," $$" :[{" #name" :" text" ," _" :" Magnetic Abrasive Finishing |
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