Results 11 to 20 of about 3,296 (214)

Cryogenic Minimal Quantity Lubrication Assisted Cutting Process for Polyimide Materials

open access: yesShanghai Jiaotong Daxue xuebao, 2022
The cutting performance of the porous polyimide material assisted by cold air trace lubrication was investigated, and the influence law of cutting process parameters on the cutting effect (cutting force, surface finish quality, and oil content) of the ...
CAO Zheng, LEI Xuelin, ZHANG Hang, CAI Xiaojiang
doaj   +1 more source

Numerical and Experimental Investigations to Assess the Impact of an Oil Jet Nozzle with Double Orifices on the Oil Capture Performance of a Radial Oil Scoop

open access: yesAerospace, 2023
To study the influence of orifice spacing on the oil–air two-phase flow and the oil capture efficiency of an oil scoop in an under-race lubrication system, an experimental platform for under-race lubrication was built, and a calculation model for the oil–
Le Jiang   +5 more
doaj   +1 more source

Numerical Investigation of Oil–Air Flow Inside Tapered Roller Bearings with Oil Bath Lubrication [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Oil–air flow within an oil bath lubrication tapered roller bearing is essential for the lubrication and cooling of the bearing. In this paper, we develop a simulation model to investigate the flow field of tapered roller bearings with oil bath ...
Z. Wang   +5 more
doaj   +1 more source

Temperature rise characteristics for angular-contact ball bearings with oil-air lubrication based on fluid-solid conjugate heat transfer

open access: yesAdvances in Mechanical Engineering, 2021
At present, the thermal analysis of oil-air-lubricated angular-contact ball bearings uses empirical heat transfer coefficients to calculate heat transfer.
Miaomiao Li   +3 more
doaj   +1 more source

A multiphase flow study for lubrication characteristics on the internal flow pattern of ball bearing

open access: yesResults in Engineering, 2023
This work proposes a general method for establishing the lubrication analysis model of ball bearing and the oil-air multiphase flow characteristics inside ball bearing is revealed by CFD. Based on the geometric feature, the micro-clearance in the chamber
Wentao Shan   +5 more
doaj   +1 more source

The key technology of lubrication for screw motor in air directional drilling

open access: yesMeikuang Anquan, 2023
When the air directional drilling technology is used for drilling construction, whether the screw motor can be well lubricated is a key factor affecting its life.
LI Kun
doaj   +1 more source

CFD Investigation on Oil Injection Lubrication of Meshing Spur Gears via Lattice Boltzmann Method

open access: yesLubricants, 2022
The meshless Lattice Boltzmann Method (LBM) is introduced and employed to solve the complex two-phase flow problem of jet lubrication of meshing spur gears. Computational fluid dynamics (CFD) simulations based on LBM are carried out using the model of an
Xiaozhou Hu   +3 more
doaj   +1 more source

Effect of Oil Dispersion on Lubricating Film Thickness Generation under Oil Droplet Supply Conditions

open access: yesLubricants, 2023
Oil–air lubrication has proven to be very effective for high-speed bearings because the oil supply in the form of droplets can be precisely controlled. This work uses optical interferometry to study the mechanism of lubricating film formation in rolling ...
Chenglong Liu   +4 more
doaj   +1 more source

Machining response of Ti64 alloy under Nanofluid Minimum Quantity Lubrication (NFMQL) [PDF]

open access: yesE3S Web of Conferences, 2021
Rapid wear progression of cutting insert associated with attainment of excessive tool-tip temperature are indispensable causes which limit operational domain of cutting velocity during dry turning of Ti64 alloy.
Sahoo Sarthak Prasad, Datta Saurav
doaj   +1 more source

Study of Effects of MoS2 Nanofluid MQL Parameters on Cutting Forces and Surface Roughness in Hard Turning Using CBN Insert

open access: yesFluids, 2023
Lubrication and cooling in hard machining is an urgent and growing concern. The use of a suitable cooling lubrication condition is a crucial factor and has a great influence on the machining efficiency and the machined surface quality in hard machining ...
Ngo Minh Tuan   +2 more
doaj   +1 more source

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