Tribological studies to analyze the effect of solid lubricant particle size on friction and wear behaviour of Ti-6Al-4V alloy

Gunda, Rakesh Kumar; Narala, Suresh Kumar Reddy

doi:10.1016/j.surfcoat.2016.06.092

Cited by 28 publications

(7 citation statements)

References 19 publications

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“…This explanation is compatible with the research of other authors who described th positive effect of solid lubricants with particle sizes in the range of 1 to 150 μm in terms o tool wear reduction and surface roughness. This fact has been repored for materials suc as Inconel [30], Ti6Al4V [31] or different steels [32]. Particularly, Srivastava et al [33] de veloped the turning process of Al 6061 alloy with the used of 2-μm solid lubricant part cles, enhancing the surface roughness results, which is compatible with the results ob tained herein.…”

Section: Pin On Disk Friction and Wear Resultssupporting

confidence: 87%

Surface Integrity and Tool Wear Analysis on Turning of Copper-Nickel 70/30 ASTM B122 Alloy under Low Initial Lubrication

et al. 2021

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Traditional flood lubrication in machining processes is considered an unsustainable technique. In this paper, the low initial lubrication (LIL) technique is analysed during turning of cupronickel 70/30 alloy, in terms of surface roughness. A tribological analysis has been developed on a pin-on-disk tribometer comparing different lubrication systems, obtaining comparative results of friction and tool wear. It has been found that the tool wear is 73% lower in comparison to flood lubrication. LIL technique shows the ability to reduce the friction coefficient compared to dry machining and leads to improve tool wear in comparison with flood lubrication. The surface integrity evaluation of machined parts finds that the LIL technique can improve the surface roughness under specific machining conditions.

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Section: Pin On Disk Friction and Wear Resultssupporting

confidence: 87%

Surface Integrity and Tool Wear Analysis on Turning of Copper-Nickel 70/30 ASTM B122 Alloy under Low Initial Lubrication

et al. 2021

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“…At high-speed machining conditions, lubrication/cooling of applied cutting fluids is abundance and improves penetration ability at tool–chip–material interface and forms a thin layer film thickness between tool and material. 39 From all the performed experiments, it was observed that the attained results of ECSL particles with 8 kV observed minimum cutting force.…”

Section: Resultsmentioning

confidence: 88%

Analysis of electrostatic solid lubricant spray process parameters during turning Ti-6Al-4V alloy

Gunda¹,

Narala

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Titanium alloys are considered as hard-to-cut material due to its relatively high resistance to corrosion, low thermal conductivity and high chemical reactivity. Effective penetration of sufficient amount of lubricant in the metalworking process is of utmost importance to (a) reduce frictional resistance at the high-temperature tool–workpiece interface and (b) avert the formation of built-up edge in machining process. Traditionally, the lubricant forms a thin fluid film to reduce the friction. In order to reduce or eliminate coolant usage and to apply lubri-coolant efficiently at tool–chip–workpiece interface, a novel near-dry machining technique called electrostatic charged solid lubricant spray system has been developed. In electrostatic charged solid lubricant spray technique, the aerosolized micro-droplet particles were sprayed from the nozzle tip which uses a phenomenon called contact-charge electrification principle. The quick penetration and wettability of charged atomized droplet particles are impinged with high velocity at the tool–chip interface. The focus of the present experimental research is to analyse the optimum lubrication process parameters of the experimental set-up in terms of effectively applying cutting fluid in the machining zone. The study shows that the desired atomization and machining performance of the electrostatic charged solid lubricant spray technique can be obtained by governing different spray parameters (lubricant flow rate, air pressure, spray nozzle position, nozzle distance, electrostatic voltage). The results revealed that when the charged lubricants are applied with high velocity and large number of droplets, it will have significant influence on surface roughness and cutting force. The fabricated electrostatic charged solid lubricant spray technique provides us with an efficient and economic machining solution by applying solid lubricants effectively at tool–material interface during turning of Ti-6Al-4V alloy material. The present approach and the obtained results will help in better understanding of the machinability of hard-to-cut materials in manufacturing industries.

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“…There are variety of materials with the inherent lubricating capability which can be used as solid lubricant such as molybdenum disulfide (MoS 2 ), graphite, and polytetrafluoroethylene [ 41 ]. Solid lubricant is usually delivered in dry powder form which contains lubricant additives due to the nature of their crystal lattice structures arranged in layers for improvement in terms of friction and minimizing tool wear under extreme machining operations [ 42 – 44 ]. Solid lubricants were able to withstand extreme temperature due to their high chemical inertness and low volatility.…”

Section: Types Of Coolant Deliverymentioning

confidence: 99%

Recent progress and evolution of coolant usages in conventional machining methods: a comprehensive review

Kui

Islam

Reddy

et al. 2021

Int J Adv Manuf Technol

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This paper reviews recent progress and applications of usage of cutting fluids in conventional machining processes. In addition to reviewing the various conventional and advanced cooling techniques during machining, the paper also discusses the use of minimum quantity lubrication (MQL) in several types on metals such as steel, aluminum, alloy, and titanium alloys. Due to the toxicity of conventional cutting fluid resulting in ecological problems, the demand for environmentally friendly cutting fluid is rising. Therefore, natural vegetable oil is chosen as potential replacement as an environmentally friendly cutting fluid which fulfills the important aspects of biodegradability and sustainability. Application of vegetable oil-based cutting fluids under MQL techniques are also discussed. Moreover, the potential of palm oil as biodegradable and environmentally friendly natural vegetable oil-based metal-working fluids in MQL are reviewed.

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Tribological studies to analyze the effect of solid lubricant particle size on friction and wear behaviour of Ti-6Al-4V alloy

Cited by 28 publications

References 19 publications

Surface Integrity and Tool Wear Analysis on Turning of Copper-Nickel 70/30 ASTM B122 Alloy under Low Initial Lubrication

Surface Integrity and Tool Wear Analysis on Turning of Copper-Nickel 70/30 ASTM B122 Alloy under Low Initial Lubrication

Analysis of electrostatic solid lubricant spray process parameters during turning Ti-6Al-4V alloy

Recent progress and evolution of coolant usages in conventional machining methods: a comprehensive review

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