Parametric optimization of end milling process under minimum quantity lubrication with nanofluid as cutting medium using pareto optimality approach

This paper investigates the characteristics of micro end-milling process of titanium alloy (Ti-6AL-4V) using nanofluid minimum quantity lubrication (MQL). A series of micro end-milling experiments are conducted in the meso-scale machine tool system, and milling forces, burr formations, surface roughness, and tool wear are observed and analyzed according to varying feed per tooth and lubrication conditions. The experimental results show that MQL and nanofluid MQL with nanodiamond particles can be effective to reduce milling forces, burrs and surface roughness during micro end-milling of titanium alloy. In particular, it is demonstrated that smaller size of nanodiamond particles — 35 nm — can be more effective to decrease burrs and surface roughness in the case of nanofluid MQL micro end-milling.

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Selection of Minimum Quantity Lubrication (MQL) Parameters in Milling of Ti-6Al-4V

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.426.139 ◽

2012 ◽

Vol 426 ◽

pp. 139-142 ◽

Cited By ~ 2

Author(s):

Zhi Qiang Liu ◽

X.J. Cai ◽

Ming Chen ◽

Qing Long An

Keyword(s):

Cutting Force ◽

End Milling ◽

Cutting Temperature ◽

Minimum Quantity Lubrication ◽

Milling Process ◽

Minimum Quantity ◽

Nozzle Position ◽

Mql System ◽

End Milling Process ◽

Selection Of

Different parameters of Minimum Quantity Lubrication (MQL) system, including air pressure, oil quantity, nozzle position, might have different influences on the cutting force and the cutting temperature. This paper presents an experiment of end-milling titanium alloy with MQL system. The objective of the experiment is to investigate the influences of MQL parameters in milling of Ti-6Al-4V. The results of experiment show that there are different effects on the cutting force and the cutting temperature with different MQL parameters, which will help to select different parameters in the end-milling process of Ti-6Al-4V.

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Experimental Study on Environmentally-Friendly Micro End-Milling Process of Ti-6Al-4V Using Nanofluid Minimum Quantity Lubrication With Chilly Gas

Volume 2: Materials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing ◽

10.1115/msec2016-8748 ◽

2016 ◽

Cited By ~ 2

Author(s):

Jung Sub Kim ◽

Jin Woo Kim ◽

Young Chang Kim ◽

Sang Won Lee

Keyword(s):

Tool Wear ◽

Coefficient Of Friction ◽

End Milling ◽

Minimum Quantity Lubrication ◽

Milling Process ◽

Co2 Gas ◽

Minimum Quantity ◽

Nanofluid Minimum Quantity Lubrication ◽

Micro End Milling ◽

End Milling Process

This research experimentally investigates the characteristics of micro end-milling process of titanium alloy using nanofluid minimum quantity lubrication (MQL) with chilly CO2 gas. In the nanofluid MQL, hexagonal boron nitride (hBN) particles having a lamellar structure are used. They have high aspect ratio and enable sliding against other particles, which can provide better lubricity. In addition, the chilly CO2 gas enhances a cooling effect during the micro end-milling process. A series of micro end-milling experiments are conducted in the meso-scale machine tool system, and milling force, coefficient of friction, surface roughness and tool wear are observed and analyzed according to varying lubrication and cooling conditions. The results show that the nanofluid MQL with chilly gas can be effective for reducing milling forces, coefficient of friction, tool wear and improving surface quality.

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