Investigating the Effect of Nano Crystalline MoS2 Particles on the Surface Integrity of Turned Components

Sekhar, K.; Reddy, V. Vikram; Srikiran, S.; Daniel, M.; Kumar, Satish

doi:10.1016/j.matpr.2017.07.084

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…This film acts as a physical barrier between the surfaces, preventing direct metal-to-metal contact and reducing friction [5,17]. Sekhar et al [36] used 0.5-1.5% MoS 2 concentration and found 0.5% as optimal. Rahmati et al [37] used 0-1% MoS 2 concentration during end-milling of aluminum alloys.…”

Section: Propertiesmentioning

confidence: 99%

Using Nano-Fluids Minimum Quantity Lubrication (NF-MQL) to Improve Tool Wear Characteristics for Efficient Machining of CFRP/Ti6Al4V Aeronautical Structural Composite

Mughal

Farooq

et al. 2023

Processes

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The aeronautical industry constantly strives for efficient technologies to facilitate hole-making in CFRP/Ti6Al4V structural components. The prime challenge in this direction is excessive tool wear because of the different engineering properties of both materials. Nanofluid minimum quantity lubrication (NF-MQL) is the latest technology to provide synergistic improvement in tool tribological properties and lubrication function during machining. In the current study, an MoS2-based NF-MQL system was applied during helical milling using a FIREX-coated tool. In-depth analysis of wear, a scanning electron microscope (SEM), and electron deposition spectroscopy (EDS) were used to evaluate workpiece elemental transfer and tool wear mechanisms. Experimental findings showed that 1% nanoparticles concentration in lubricant resulted in low tool wear of 13 µm after 10 holes. The SEM and EDS analyses depicted formation of tribo-film on the surface, resulting less severe wear and a reduced degree of adhesion. However, a low nanoparticle concentration of 0.5% resulted in 106 µm tool wear after 10 holes with slight evidence of tribo-film. Parametric analysis based on eccentricity, spindle speeds (individual for CFRP and Ti6Al4V), axial pitch, and tangential feed showed correlations with mechanical damage. An extended study of up to 200 holes showed diffusion of C element at a high rate as compared to metal elements such as W and Co. The lowest tool wear was observed using eccentricity level 1, spindle speed Ti6Al4V 1000 rpm, spindle speed CFRP 7500 rpm, tangential feed 0.01 mm/tooth, axial pitch 1.5 mm, and 1% of MoS2 nanoparticles.

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Section: Propertiesmentioning

confidence: 99%

Using Nano-Fluids Minimum Quantity Lubrication (NF-MQL) to Improve Tool Wear Characteristics for Efficient Machining of CFRP/Ti6Al4V Aeronautical Structural Composite

Mughal

Farooq

et al. 2023

Processes

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“…There are research findings of the use of MoS 2 [12][13][14] as a lubricant which demonstrated significant improvement in the cutting parameters and even established equations with respect to cutting parameters [15] and surface roughness [16] of the job [17,18]. Studies have been conducted by the use of MoS 2 as cutting fluid to the regular cutting fluid along with the use of MoS 2 -coated ceramic tool [19].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Nanolubricant-Assisted Machining Process by using Multiple Regression Analysis

Srikiran

Pavani²,

Kumaran

2023

Journal of Nanomaterials

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Graphite, due to its hexagonally arranged crystal structure, is a preferred lubricant. The crystal structure within a planar condensed ring system indicates that the layers are stacked in a direction that is parallel to each other. Researchers have reported that the use of graphite powder as a lubricant during machining has exhibited promising results. Mixture of graphite in a carrying medium demonstrated multifunctional lubrication performance due to the separation of sliding surfaces by a liquid lubricant film and protected by solid powder. Scientific literature has pointed out that graphite powder at the nanoscale has been used in various mechanical operations exhibiting promising results. It is found that nanolevel graphite powder has been used previously by researchers in the metal-forming operations and tribological tests. This emphasizes the significance of the present work, which investigates the impact of nanoscale differences in the particle size of graphite powder has on the machining of hardened steel. With SAE 40 oil functioning as the carrying medium and nanocrystalline graphite of various size range performing as the lubricant, the current work attempts to determine the effects of solid-lubricant-assisted machining. It is observed experimentally that the machining parameters have improved with respect to the particle size of the nanopowder. The experimental results show that the cutting forces, tool temperatures, and surface roughness are found to increase as the size of the nanocrystalline graphite powder is reduced from 70–90 to 5–10 nm. Using the experimental values, regression analysis is carried out to develop nonlinear expressions between the input and output variables using SPSS statistical tool. The data are used to develop the models to predict cutting forces, tool temperatures, and surface roughness for the input parameters like size of the nanocrystalline graphite powder, depth of cut, feed rate, and cutting velocity for a considerably good range in a scientific way so that further researchers can use it. Further, the outputs obtained from the experimentation and the regression equations are compared and analysis is carried out in terms of the error percentage.

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State of the art on sustainable manufacturing using mono/hybrid nano-cutting fluids with minimum quantity lubrication

Singh

Sharma

Sahu

et al. 2022

Materials and Manufacturing Processes

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Investigating the Effect of Nano Crystalline MoS2 Particles on the Surface Integrity of Turned Components

Cited by 3 publications

References 17 publications

Using Nano-Fluids Minimum Quantity Lubrication (NF-MQL) to Improve Tool Wear Characteristics for Efficient Machining of CFRP/Ti6Al4V Aeronautical Structural Composite

Using Nano-Fluids Minimum Quantity Lubrication (NF-MQL) to Improve Tool Wear Characteristics for Efficient Machining of CFRP/Ti6Al4V Aeronautical Structural Composite

Modeling of Nanolubricant-Assisted Machining Process by using Multiple Regression Analysis

State of the art on sustainable manufacturing using mono/hybrid nano-cutting fluids with minimum quantity lubrication

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