Table 2
Recent MRF processes with process parameters.
| Process | Machine | Medium | Magnet | Workpiece | Response | Reference |
|---|---|---|---|---|---|---|
| BEMRF | t EN31-100 min &tcopper – 60 min, z-2 mm | 20 vol% CIP, 20 vol% SiC abrasive (#EN31-600 and #copper-800), 60 vol% base medium | Electromagnet coil VDC - 30 V, I − 2.6A and B − 0.2 T, NEN31-100 rpm and Ncopper -300 rpm | EN31,Copper (50 × 30 × 5 mm) | Ra decrease from 414.1 nm to 70 nm in 100 min for EN31 and from 336.8 to 102 nm in 60 min for copper | [63] |
| MRFF | t − 64.7 hr, z-1 mm, F-4 mm/min | 40 vol% CIPs, (6 μm), 3.5 vol% diamond abrasive (6 μm), 56.5 vol% Paraffin oil (oil based), 48.5 vol% water, 8 vol% glycerol | Sintered Nd–Fe–B permanent magnet, BHmax - 48-51MGOe, N-1000 rpm, F-4 mm/min, B-0.3 to 0.5T | Knee joint implant (titanium) | Total Average % ΔRa 39.76, Ra decreased from 268 nm to 28 nm | [64] |
| CMMRF | t– 5 to100 min,z-1 mm, F- 10 mm/min | 60 vol% Water, 30 vol% CIP (HQ grade), 5 vol% Alumina (#2500), 2 vol% Glycerine, 3 vol% Glycine |
Sintered Nd–Fe–B permanent Magnet, Bmax- 0.6T | Al6061-T6 (20 × 20 × 10 mm) | Final Ra is 8.4 nm | [65] |
| UAMAF | z-0.8 mm | 75 wt% Fe (49 μm) and 25 wt% SiC (22 μm) | ν- 20000 Hz, λ- 20 µm of ultrasonic horn | SS304 (100 × 100 × 2 mm) | Ra decreased from 240.8 to 44.9 | [66] |
| MFAF | t − 6.30 h, z-0. 18 mm | 40 vol% CIP, 3.5 vol% diamond abrasive (6 μm), 56.5 vol% base medium | Magnet fixture: mu metal, Cylindrical magnet (Ф- 5-20 mm, H- 50-100 mm), B- 0.4T, N: 1200 rpm | Titanium | (1) Surface roughness change from 180 nm to 10 nm (2) %Δ Ra −94.44% |
[67] |
| PMT | t-7.5 min, z-1.5 mm | 23 vol% SiC (21-19 μm), 17 vol% CIP (19 μm), 60 vol% base medium | Permanent magnet attached with rotating shaft | Diamagnetic copper alloy | Ra, Rq, Rz from 273.6 nm, 347.2 nm and 1769 nm to 28.8 nm, 38.1 nm and 269 nm resp. | [68] |
T − Time, z − working gap, WM − workpiece material, Ф − diameter, H − height, N − rotational speed, B − Magnetic flux density, Ra − surface roughness, V − volt, I − current, F − feed, ν − frequency, λ − amplitude, μm − micrometer, mm − millimeter, nm − nanometer, # − mesh size, BHmax − maximum magnetization energy.
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