Effect of magneto rheological minimum quantity lubrication on machinability, wettability and tribological behavior in turning of Monel K500 alloy

• Published in: Machining science and technology Vol. 24; no. 5; pp. 810 - 836
• Main Authors: Kulandaivel, Arul, Kumar, Senthil
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 02.09.2020
• Subjects: Graphene oxide; jojoba oil; minimum quantity lubrication; Monel; tribology
• ISSN: 1091-0344; 1532-2483
• DOI: 10.1080/10910344.2020.1765179

The proposed work deals with the investigation of magnetorheological based minimum quantity lubrication of graphene oxide (GO) based jojoba oil as bio-lubricant on machinability and tool wear mechanism of turning Monel K500 alloy. Experiments were carried out for dry, flooded, minimum quantity lubrication (MQL) and magnetorheological (MR-MQL) conditions using medium duty lathe. The process parameters include the cutting speed 95, 110, 125 m/min, feed rate 0.050, 0.075, 0.1 mm/rev and depth of cut 0.25, 0.50, 0.75 mm for the output responses such as surface roughness, cutting temperature and tool flank wear. The results indicated that GO-based bio-lubricant MR-MQL reduced coefficient of friction (COF) of 0.051 and wetting angle of 6°, as well as improved machining performance such as cutting temperature of 145 °C, the surface roughness of 0.614 µm, flank wear of 0.18 mm with enhanced lubrication regime under extreme wear conditions.