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Table 3

MRAFF and its variants with process parameters.

Process Machine Magnetorheological fluid Electromagnet Workpiece Prominent results References
MRAFF No. − 200 cycles, τ-50–100 kPa, P- 3.75 MPa, z-30 mm, I- 6A 20 vol% CIP (18 μm), 20 vol% SiC(# 400) and 60 vol% of viscoplastic base medium B-0.574 T, H-150–250 kA/m Stainless steel (35 × 5 × 2 mm) Ra changes from 0.6 μm to 0.34 μm [15]
MRAH t- 20 min, Nholder -310 rpm, VPlunger -15 cycles/min 30 vol% CIP (size 8 μm), 25 vol% SiC (size 15 μm) B-0.65 T Mild steel (AISI 1020), Stainless steel (SS 316L) %ΔRa for 41.7% (mild steel) and 43.5% (stainless steel) [79]
R-MRAFF No.-1600 cycles, N-150 rpm, P- 15-35 bar, t-24.7 hr, z-1 mm 30 vol% CIP, 15 vol% SiC (#500-2000), 43 vol% of viscoplastic base medium and 12 vol% Surfactant Permanent magnet (Nd–Fe–B), B-0.37 T, Hc (836 kA/m) Knee joint implant(stainless steel) (1) At small angle magnetic line concentrated
(2) %ΔRa-17.5 (Final)

τ − shear stress, Plunger − reciprocating velocity, Hc − coercive field force, N − rotational speed, No − no of cycles, P − pressure, z − working gap, I − current, B-magnetic flux density, # − mesh size, MRAH − magnetorheological abrasive honing, R-MRAFF − rotational magnetorheological abrasive flow finishing.

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