Abstract:This review paper is concerned about the important of nanofluid in machining. It is discussed in several parts such as cutting force, surface roughness, tool life and tool wear. Various type of nanofluid is discussed in this paper with an effect on the surface roughness, force, tool life, and wear. Nanofluid plays a significant role in the increment of tool life and reducing tool wear. Nanofluid creates an artificial layer on top of the workpiece, and this reduces wear at the cutting tool. It seems that nanofl… Show more
“…It is associated with spherical rolling elements by tri-nanoparticles that have remarkable effects in reducing the coefficient of friction [25]. The presence of tri-nanoparticles at the cutting interface forms a thin film, which can be attributed to the lower cutting force of AA6061-T6 in the end milling process [26]. As a result, low severity of tool wear obtained at the flank using process optimization approach [27].…”
As an alternative to conventional metal working fluid in the end milling process, a combination of newly developed tri-hybrid SiO2-Al2O3-ZrO2 in aqueous-based nanofluid was delivered to the cutting zone using the MQL technique. The liquid has excellent thermal-rheology properties that can offer effective cooling and lubricating during the process. The tri-hybrid nanofluid application is environmentally safe, thus promoting sustainable manufacturing compared to the conventional working fluid. In this experimental study, the cutting forces were investigated comprehensively. Tri-hybrid nanofluid presents in atomizing conditions using the minimum quantity lubricant (MQL) technique at the cutting zone. Industrial standard inserts, namely uncoated, CVD TiCN-Al2O3 and PVD TiAlTaN tungsten carbide used in the experiments. End milling process variables were cutting speed, feed rate, depth of cut, MQL flow rate and nanofluid concentrations. The response data were analyzed statistically based on the design of experiment and regression models were developed for each response according to response surface methodology. Higher cutting force was observed at extreme machining parameters, which regards to higher material removal rate. During the cutting process of Aluminum Alloy 6061-T6, the cutting force, Fr measured was between 16 Newton and 30 Newton. The cutting force in Y-axes (Fy) demonstrates a higher magnitude than others due to the cutting feed of AA6061-T6 in the Y direction. CVD TiCN-Al2O3 tungsten carbide exhibited higher cutting force (Fy) due to coated hardness and tool failures mechanism on both rake and flank face as the wear phenomenon will increase the land contact area. In summary, the resultant cutting force (Fr) was recorded below 30 Newton, indicating the significant improvement in the end milling process. For future experimental works, the cutting force can be explored by considering different nanofluids, extreme machining conditions and brittle material.
“…It is associated with spherical rolling elements by tri-nanoparticles that have remarkable effects in reducing the coefficient of friction [25]. The presence of tri-nanoparticles at the cutting interface forms a thin film, which can be attributed to the lower cutting force of AA6061-T6 in the end milling process [26]. As a result, low severity of tool wear obtained at the flank using process optimization approach [27].…”
As an alternative to conventional metal working fluid in the end milling process, a combination of newly developed tri-hybrid SiO2-Al2O3-ZrO2 in aqueous-based nanofluid was delivered to the cutting zone using the MQL technique. The liquid has excellent thermal-rheology properties that can offer effective cooling and lubricating during the process. The tri-hybrid nanofluid application is environmentally safe, thus promoting sustainable manufacturing compared to the conventional working fluid. In this experimental study, the cutting forces were investigated comprehensively. Tri-hybrid nanofluid presents in atomizing conditions using the minimum quantity lubricant (MQL) technique at the cutting zone. Industrial standard inserts, namely uncoated, CVD TiCN-Al2O3 and PVD TiAlTaN tungsten carbide used in the experiments. End milling process variables were cutting speed, feed rate, depth of cut, MQL flow rate and nanofluid concentrations. The response data were analyzed statistically based on the design of experiment and regression models were developed for each response according to response surface methodology. Higher cutting force was observed at extreme machining parameters, which regards to higher material removal rate. During the cutting process of Aluminum Alloy 6061-T6, the cutting force, Fr measured was between 16 Newton and 30 Newton. The cutting force in Y-axes (Fy) demonstrates a higher magnitude than others due to the cutting feed of AA6061-T6 in the Y direction. CVD TiCN-Al2O3 tungsten carbide exhibited higher cutting force (Fy) due to coated hardness and tool failures mechanism on both rake and flank face as the wear phenomenon will increase the land contact area. In summary, the resultant cutting force (Fr) was recorded below 30 Newton, indicating the significant improvement in the end milling process. For future experimental works, the cutting force can be explored by considering different nanofluids, extreme machining conditions and brittle material.
“…Base fluid’s thermo-physical characteristics are altered when the nanoparticles are added to it. The most significant thermo-physical characteristics of NFs are their viscosity, thermal conductivity, convective heat transfer and specific heat (Shahzad, 2020; Das et al , 2006; Choi, 2009; Wong and De Leon, 2017; Kadirgama, 2020; Javid, 2021; Manikanta et al , 2018; Wong and De Leon, 2010; Kadirgama, 2021).…”
Section: Challenges In Milling Hard-to-cut Materials Under Nanofluid-...mentioning
Purpose
The purpose of this paper is to analyze the literature that is currently available and take a glance at minimum quantity lubrication (MQL) with nanofluids (NFs) as viable candidates to improve the efficiency of various milling operations on challenging materials.
Design/methodology/approach
The extensive literature review is carried through the existing literature, which shows the effect of various process parameters in the milling operation of challenging materials under NF-MQL conditions. The manuscript also deals with identifying the inferences and research gaps from the literature review. The role and potential of NF-MQL in milling challenging materials are identified in this work.
Findings
The conclusion has also derived some recommendations for future study from the prior research, which will be helpful for any further research in this area.
Research limitations/implications
This research work is limited to milling operations in challenging materials.
Practical implications
NF-MQL applications in milling operations are comparatively underexplored and merit considerable research. The amount of effort industry practitioners put into sustainable manufacturing will surely be greatly reduced by thorough research on the milling of challenging materials under NF-MQL settings.
Social implications
MQL system has a great potential to perform well in the experimental endeavor. Despite that fact, majority of the small and medium scale manufacturing industries are still using the conventional flood system for the machining of the workpieces because of the unaffordable initial cost and requirement of expertise involved as compared to the flooded lubrication. This issue might be solved when more works will be accomplished in industries for small as well as medium scale production.
Originality/value
These are novel study approaches because there are so many variables that affect cutting efficiency; therefore, more research is required to assess and provide direction for the advancement of hard milling technology.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-01-2023-0010/
“…It should be noted that nano-fluid causes that the surface roughness is stable during first 60 min of the milling test. After next 60 min it increases up to 0.2 m due to milling cutter wear to VBB = 0.4 mm [18]. Figure 15 compares the Ra values measured after pure MQL and MQSL (minimum quantity solid lubrication) when solid lubricant in the form of nanoparticles of graphite (40 m in size) and MoS2 (6 m in size) in the 20% volumetric concentration are added to MQL vegetable-oil-based fluid.…”
A special group of hybrid assisted processes termed media-assisted processes which apply liquid media with special additives in the form of nanoparticles supplied to the cutting zone is overviewed. Special attention is paid to minimum quantity lubrication (MQL) technique with the use of nanofluids. In this review paper some important thermal and tribological effects resulting from the applications of various nanoparticles are outlined and compared. The MQL-nano cutting fluid mechanisms (rolling and ploughing) are described. In particular, some important quantitative effects concerning thermal and tribological behaviour of the cutting process as well as surface quality are presented.
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