Tribological Studies of Lubricated Laser-Textured Point Contacts in Rolling/Sliding Reciprocating Motion with Investigations of Wettability and Nanohardness

Sudeep, U.; Tandon, N.; Pandey, R. K.

doi:10.1080/10402004.2014.998357

Cited by 27 publications

(22 citation statements)

References 24 publications

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“…25–35% reduction in the friction coefficient, 15–40% vibration reduction, at relatively high loads ( p H = 0.7–1.0 GPa) at rolling/sliding velocities (0.04–0.16 m/s). 3–6 Significant reduction in the frictional torque, vibration amplitude, and temperature rise are also reported with grease-lubricated textured thrust ball bearing. 10 Looking at the encouraging results with concentrated textured contacts, it is worth exploring here for enhancing the tribological behaviors of reciprocating lubricated point contacts at high loads (up to 3 GPa) using low and high viscous oils.…”

Section: Introductionmentioning

confidence: 91%

“…Recently, surface texture has emerged as a viable technology for improving the tribodynamics behavior of concentrated contacts. [3][4][5][6][7][8][9][10] It is found that certain textures reduce the vibration and friction coefficient at the lubricated contacts due to the enhanced value of damping due to better lubrication. Lubricated textured point contacts have yielded beneficial results i.e.…”

Section: Introductionmentioning

confidence: 99%

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Tribological studies of low and high viscous oils lubricated heavily loaded textured point contacts under the reciprocating motion

Chaudhary

Pandey

Mazumdar

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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The tribo-performance behaviors of lubricated textured point contacts have been explored herein at relatively high contact loads (up to 3 GPa) under reciprocating motion (0.2 and 0.4 m/s) employing low (ν@40 ℃ = 100 cSt) and high (ν@40 ℃ = 422 cSt) viscous oils. In this experimental study, two contacts (flat conventional surface vs. polished ball and textured flat surface vs. polished ball surface) have been created for the investigations of friction, wear, and contact potential (ability for film formation). It is found that in the presence of texture at the concentrated contacts, the coefficient of friction and wear have reduced considerably with high viscous oil irrespective of operating parameters. However, low viscous oil has yielded an increase in the wear under identical operating parameters. The contact potential (an indirect indication of film formation during the running-in period) in the presence of texture develops rapidly as compared to the conventional surface with both oils. It has demonstrated a reduction in the running-in period in the presence of textures at the contacts. The optical microscope images of worn surfaces of balls and tracks have also been presented for the quantification of wear and understanding of the associated mechanisms.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Tribological studies of low and high viscous oils lubricated heavily loaded textured point contacts under the reciprocating motion

Chaudhary

Pandey

Mazumdar

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…As predicted, sliding contact surface by using dimpled tapered die (A) presents the nest surface roughness and yet, ner than at the deformation area. Wakuda et al [38] and Sudeep et al [42] veri ed that surface texturing is one of the e ective keys to friction reduction. With an existence of textured surface at the tapered die area, again, it is an advantage for a better surface roughness along the sliding contact area.…”

Section: Surface Roughnessmentioning

confidence: 99%

A new approach for cold extrusion process: Dimples indentation on sliding contact surface and palm oil as an alternative lubricant

Nurul

Samion

2017

Scientia Iranica

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Surface texturing is one of the economic solutions to die modi cation if compared with tool change and hot works. In extrusion die design, it has become increasingly common to add dimples to maintain lubricant ow along the metal forming process. For that reason, this research was done by embedding dimples in a tapered die sliding contact surface to explore its e ectiveness in a nished product of cold extrusion process. Besides, an alternative lubricant from palm oil was also tested, and mineral oil was used for comparison purposes. As a result, dimpled tapered die may help decrease the extrusion load of cold extrusion process, leading to ner surface roughness of extruded product. Palm oil-based lubricant also presents similar results to those of mineral oil, meaning that palm oil has a potential to be considered as a new metal forming lubricant in the future.

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“…The roles of textures' attributes and lubrication regimes on the fatigue life of the concentrated contacts are also being explored and established [10,11]. It has been reported that the textures' fabrication techniques also play vital role on the tribological behaviors of the contacts [12,13]. It happens due to the localized modification in materials' properties (mainly hardness) at the surface during the texturing processes (particularly with the use of lasers).…”

Section: Introductionmentioning

confidence: 98%

Vibration studies of lubricated textured point contacts of bearing steels due to surface topographies: Simulations and experiments

Sudeep¹,

Tandon

Pandey

2016

Tribology International

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Tribological Studies of Lubricated Laser-Textured Point Contacts in Rolling/Sliding Reciprocating Motion with Investigations of Wettability and Nanohardness

Cited by 27 publications

References 24 publications

Tribological studies of low and high viscous oils lubricated heavily loaded textured point contacts under the reciprocating motion

Tribological studies of low and high viscous oils lubricated heavily loaded textured point contacts under the reciprocating motion

A new approach for cold extrusion process: Dimples indentation on sliding contact surface and palm oil as an alternative lubricant

Vibration studies of lubricated textured point contacts of bearing steels due to surface topographies: Simulations and experiments

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