Abstract
Proposing nano-cutting fluids contributes to facing the heat dissipation challenge during machining difficult-to-cut materials since they offer a highly observed thermal conductivity value in comparison with the base lubricants. Thus, several nano-additives are employed to improve the cooling and lubrication functions of the used base lubricants. The nano-additives have superior thermal and wettability characteristics which could significantly enhance the resultant nano-fluid properties. These properties include the ability to withstand the high generated temperature during machining difficult-to-cut materials. Also, they would enhance the nano-fluid tribological functions since the employed nano-additives work as spacers in the workpiece-tool interface area to reduce the induced friction during machining processes. Generally, nano-cutting fluids have shown promising effects on the cutting performance characteristics through different cutting operations such as turning, milling, and grinding. In the current work, a comprehensive review study about the nano-cutting fluid technology is presented. The study discussed different aspects related to the nano-cutting fluids and their applications such as, the preparation techniques of nano-fluids, characterization of nano-fluids stability, the thermal and rheological of the resultant nano-fluid, the nano-fluids effects on improving the cutting processes performance, and nano-fluids challenges.
Highlights
Increasing the heat dissipation area is an essential requirement during the cutting processes as it could offer effective results in terms of cutting tool life, energy consumption, and production rates
Several environmentally conscious cooling/ lubrication technologies during machining processes have been presented such as dry cutting, Minimum Quantity Lubrication (MQL), and cryogenic technology
Kamata and Obikawa investigated another conscious technology in order to improve the machinability known as minimum quantity lubricant (MQL) and it could be penetrated into the cutting zone using an optimal amount of cutting fluid with compressed air [3]
Summary
Increasing the heat dissipation area is an essential requirement during the cutting processes as it could offer effective results in terms of cutting tool life, energy consumption, and production rates. Proposing new environmental cooling and lubricant systems is highly required especially in improving the cutting quality characteristics. Several environmentally conscious cooling/ lubrication technologies during machining processes have been presented such as dry cutting, Minimum Quantity Lubrication (MQL), and cryogenic technology. Kamata and Obikawa investigated another conscious technology in order to improve the machinability known as minimum quantity lubricant (MQL) and it could be penetrated into the cutting zone using an optimal amount of cutting fluid with compressed air [3]. The cryogenic technique is considered as another effective alternative for enhancing the machinability and dissipating the generated heat at the cutting zone as it affects the properties of the cutting tool and workpiece using a super cold medium with liquefied gasses at a temperature lower than 120K (e.g. Liquid nitrogen:LN2) [4]
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