Effect of surface roughness on friction and lubrication regimes

Bachchhav, Bhanudas D.; Bagchi, H.

doi:10.1016/j.matpr.2020.06.252

Cited by 22 publications

(11 citation statements)

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“…An effect of load, speed, surface roughness, lubricant rheology and additive synergy on lubricant efficacy were evaluated using a four-ball tester and pin-on-disk tribometer (Bachchhav et al , 2011, 2014; Bachchhav and Bagchi, 2021). Effect of surface roughness on the coefficient of friction under different regimes of “Stribeck Curve” have been studied experimentally using pin-on-disk to control an oil film thickness to achieve desired lubrication regime (Bachchhav and Bagchi, 2021). Tribological behavior of different vegetable oils were evaluated for its applicability as a potential metal-working fluids (Georgescu et al , 2018; Dykha and Kuzmenko, 2015; Heikal et al , 2017; Huang et al , 2006; Kathamore and Bachchhav, 2021a, 2021b; Sadriwala et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Vegetable-based lube oils due to their environmental friendliness, excellent lubricity and improved stability (resulting from newly developed additives) are acceptable fluids as specialty lubricants (Bachchhav, 2019). An effect of load, speed, surface roughness, lubricant rheology and additive synergy on lubricant efficacy were evaluated using a four-ball tester and pin-on-disk tribometer (Bachchhav et al, 2011(Bachchhav et al, , 2014Bachchhav and Bagchi, 2021). Effect of surface roughness on the coefficient of friction under different regimes of "Stribeck Curve" have been studied experimentally using pin-on-disk to control an oil film thickness to achieve desired lubrication regime (Bachchhav and Bagchi, 2021).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The optimum combination of input parameters resulted in the lowest coefficient of friction and wear (Sadriwala et al, 2020). The use optimum combination of input parameters resulted in minimum friction and wear (Bachchhav et al, 2011(Bachchhav et al, , 2014Bachchhav and Bagchi, 2021;Heikal et al, 2017;Singh, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Wear behavior of environment friendly trimethylolpropane trioleate-based lubricant

Bachchhav

Kathamore

2022

ILT

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Purpose Formulation of mineral-based specialty lubricants without anti-wear (AW) and extreme-pressure (EP) additives is a challenging task. This study aims to propose an environment friendly alternative to mineral-based lubricants with superior wear preventive characteristics. Design/methodology/approach In this study, analysis of wear under trimethylolpropane trioleate (TMPTO)-based lube using operating parameters of four-ball tester was done. The effects of type of lube oil, temperature, load and speed on specific wear rate were investigated using Taguchi L27 orthogonal array. Based on the Taguchi experimental results and single-to-noise ratios, ranking of the four ball parameters was done. The surface analysis of worn steel balls was carried out using optical microscopic images of wear scar and energy dispersive spectrometry (EDS). Findings Results depict that the blend of sulfurized additives with TMPTO base oil showed a synergistic effect in terms of reduction in specific wear rate by the formation of protective film layer on the surface. The possible physical or chemical interactions between base oil and additives were studied based on the surface morphology of test balls. Practical implications The formulated lubricant has the potential to be used as a tapping/broaching oil. Originality/value To the best of the authors’ knowledge, the paper is a novel study investigating the effect of different additive in TMPTO. The results could prove beneficial in making TMPTO-based lube oil a viable replacement of mineral-based oils.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wear behavior of environment friendly trimethylolpropane trioleate-based lubricant

Bachchhav

Kathamore

2022

ILT

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“…The oil and additive manufacturers and researchers are setting a new criterion for the selection of bio-based lubricants using multi-criteria decision-making methods (Kathamore and Bachchhav, 2019, Kathamore et al, 2020. An effect of surface integrity, lubrication regimes, synergy and compatibility of additives and its impacts on friction and wear behavior of tribosystems were evaluated using a four-ball and pin-on-disc tribotesters (Bachchhav et al, 2011;Bachchhav et al, 2014;Singh, 2015;Shafi and Charoo, 2020;Bachchhav and Bagchi, 2021). Ester based boundary lubricants are found biodegradable and nontoxic and are highly environment friendly (Anand et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Tribological investigations of trimethylolpropane trioleate bio-based lubricants

Kathamore

Bachchhav

2021

ILT

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Purpose The screening of lube oil performance prior to field trials is the most significant for the formulation of novel lubricants. This paper aims to investigate the efficacy of trimethylolpropane trioleate oil (TMPTO) based lubricants with different additives. Design/methodology/approach In this endeavor, initially five lubricating blends along-with TMPTO based oil with variable additives were evaluated for their tribological performances using ASTM standards. Out of these, the top three best-performing oils were further investigated for possible physical or chemical synergies among lube oils, additives and ball surface using SEM. The molecule structures of TMPTO based lube oils were confirmed using Fourier transform infrared spectroscopy (FTIR). Findings The wear preventive and extreme pressure characteristics of different TMPTO based samples were evaluated and compared for compatibility and synergy of additives. Morphological analysis of SEM images was used to understand the wear behavior of the worn surfaces. Practical implications Further investigation of TMPTO oil on its oxidation stability at high temperature and pressure to make it technologically competitive and commercially viable metal-working lubricant is suggested. Originality/value This paper highlights the tribo-effects of TMPTO to be rendered as a suitable lubricant for metal-cutting operations. The surface morphology of the worn-out surface significantly demonstrates the effect of loading conditions.

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Effects of parameter selection strategy on tool wear when milling 3D-printed functionally graded materials with textured tool under minimum quantity lubrication

Wang

Yang

Jianpu

et al. 2023

Int J Adv Manuf Technol

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Functionally Graded Materials (FGMs) is a promising engineering material, which is highly desirable in extreme environments of aerospace, nuclear and bio-implants. Although the surface accuracy and quality of 3D printed Ni-Fe FGMs can meet most application scenarios, it still requires post-cutting treatment especially in nuclear industry. The FGMs, with the gradient of mechanical property, is a new type of di cult-to-cut material. However, no ready-made post milling process can be referred. The poor machined surface quality induced by severe tool wear still cannot be handled even with textured tool under Minimum Quantity Lubrication (MQL). In this paper, the mechanical properties and machinability of the Ni-Fe FGMs as well as its 5 isotropic component 304L x IN625 y were rstly studied and correlated. Then, two milling parameter selection strategies were proposed by minimum milling force and by minimum surface roughness, corresponding to strategy I and strategy II. The results show that severe tool breakage occurs when strategy I is adopted. On the contrary, tool undergone continuous reciprocating cycles of bonding, coating peeling, re-bonding, re-peeling when strategy II is adopted. Un this circumstance, strategy II can reduce tool ank wear by 40.1% regarding to the synergistic effect of micro-texture and MQL, which is a prospective method to solve the low tool durability during machining of 3D printed Ni-Fe FGMs.

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Effect of surface roughness on friction and lubrication regimes

Cited by 22 publications

References 10 publications

Wear behavior of environment friendly trimethylolpropane trioleate-based lubricant

Wear behavior of environment friendly trimethylolpropane trioleate-based lubricant

Tribological investigations of trimethylolpropane trioleate bio-based lubricants

Effects of parameter selection strategy on tool wear when milling 3D-printed functionally graded materials with textured tool under minimum quantity lubrication

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