Milling force and surface morphology of 45 steel under different Al2O3 nanofluid concentrations

• Published in: International journal of advanced manufacturing technology Vol. 107; no. 3-4; pp. 1277 - 1296
• Main Authors: Duan, Zhenjing, Yin, Qingan, Li, Changhe, Dong, Lan, Bai, Xiufang, Zhang, Yanbin, Yang, Min, Jia, Dongzhou, Li, Runze, Liu, Zhanqiang
• Format: Journal Article
• Language: English
• Published: London Springer London 01-03-2020; Springer Nature B.V
• Subjects: Aluminum oxide; CAE) and Design; Chemical properties; Computer-Aided Engineering (CAD; Engineering; Fatty acids; Industrial and Production Engineering; Lubricating properties; Mechanical Engineering; Media Management; Medium carbon steels; Morphology; Nanofluids; Nanoparticles; Original Article; Surface properties; Surface roughness; Workpieces; Minimum quantity lubrication; Different mass fractions; nanofluids; Milling; Surface roughness; Al; Cottonseed oil; O; Milling force
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-020-04969-9

Nanofluid minimum quantity lubrication (NMQL) is a resource-saving, environment-friendly, and efficient green processing technology. Cottonseed oil can form a strong lubricating film owing to its abundant saturated fatty acids and monounsaturated fatty acids, which have excellent lubricating properties. The physical and chemical properties of nanofluids change when Al
2
O
3
nanoparticles are added. However, the effects of cottonseed oil–based Al
2
O
3
nanofluid concentrations on the milling force and workpiece surface quality remain unclear. To address this limitation, 45 steel was used to conduct NMQL milling experiments of cottonseed oil–based Al
2
O
3
nanofluids with different mass fractions. Results showed that the minimum milling force was obtained at a concentration of 0.2 wt% (
F
x
 = 58 N,
F
y
 = 12 N). The minimum surface roughness value (
R
a
 = 1.009 μm,
RS
m
 = 0.136 mm) was obtained at a mass concentration of 0.5 wt%, and the micromorphology of the workpiece/chip was optimal.