Mechanism of smoothing of cylinder liner surface during running-in

Sreenath, A.V.; Raman, N.

doi:10.1016/0301-679x(76)90046-3

Cited by 31 publications

(18 citation statements)

References 6 publications

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“…Moreover, he suggests that plateau honing pressure on cylinder liner roughness parameters is negligible [8,9]. Different previous studies highlight a strong connection between the topography of honed surfaces and their wear resistance during running-in [1,5,6]. In addition, some researchers claim that smooth plateau honing is more effective than rougher non-plateaued surfaces so it is not clear whether enhanced performance is due to the plateauing or to the fact that the surface is smoother.…”

Section: Introductionmentioning

confidence: 96%

“…It helps piston rings/cylinder liners assemblies to reduce friction, oil consumption and the blow-by [4,5] and to increase wear resistance, load carrying capacity and the scuffing resistance between mating surfaces [6].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, some researchers claim that smooth plateau honing is more effective than rougher non-plateaued surfaces so it is not clear whether enhanced performance is due to the plateauing or to the fact that the surface is smoother. The wear process and surface smoothing mechanism during running-in is predominantly due to the removal of material without plastic deformation [5]. Sreenath suggests that the surfaces are smoothed further mostly by filling the valleys by wear debris in the later stage of in engine running-in test [5].…”

Section: Introductionmentioning

confidence: 99%

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Running-in wear modeling of honed surface for combustion engine cylinderliners

Mezghani

Demirci

Yousfi

et al. 2013

Wear

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. AbstractThe texture change during running-in alters the performance and efficiency of a tribo-mechanical system. During mass production of cylinder liners, a final finishing stage known as "plateau honing" is commonly added to reduce the running-in The present paper thus investigates the various aspects of the wear modeling that caused running-in problems in honed surfaces and its implications on ring-pack friction performance. To illustrate this, plateau honing experiments under different conditions were first carried out on an instrumented vertical honing machine. The plateau honing experiments characterize the surface modifications during running-in wear of cast-iron engine bores using advanced characterization method. Based on the experimental evidence, a running-in wear model was developed. Finally, a numerical extension of the developed model was applied to solve the Reynolds equation by taking into account the real surface topographies of the engine bore. This enables us to predict realistic friction performance within the cylinder ring-pack tribosystem.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Running-in wear modeling of honed surface for combustion engine cylinderliners

Mezghani

Demirci

Yousfi

et al. 2013

Wear

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“…This simple concept begs the question of the details of the wearing off of the tops of asperities. A typical paper on this subject [24] reports the flattening of asperities which were originally of a 0.48 pm c.1.a. roughness, but 2.1 pm of material was worn away before the flat tops were seen!…”

Section: Effect Of Surface Finishmentioning

confidence: 99%

“…(c) Sreenath and Raman [24] also suggest that debris may fill valleys, which also causes some smoothing. There is no comment offered on why loose debris becomes so firmly attached to the valleys.…”

Section: Effect Of Surface Finishmentioning

confidence: 99%

A review of scuffing and running-in of lubricated surfaces, with asperities and oxides in perspective

Ludema

1984

Wear

241

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SummaryThe slow progress in the understanding of scuffing (scoring) and runningin of most lubricated surfaces is probably due to an inadequate understanding of the details of asperity deformation and oxide formation. The thickness and properties of oxides influence the stress states imposed on asperities as much as does the liquid lubricant, but the oxides are ignored in theories. Present theories also focus on adhesion as the cause of scuffing and they usually do not take account of the changing surface roughness during sliding. There may indeed be some evidence of adhesion in the later stages of damage but adhesion has not been demonstrated to be the initiating mechanism of scuffing. Plastic fatigue is the more likely explanation, and this can occur without atomic contact between the sliding surfaces.

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Wear in cylinder liners

Sudarshan

Bhaduri

1983

Wear

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Mechanism of smoothing of cylinder liner surface during running-in

Cited by 31 publications

References 6 publications

Running-in wear modeling of honed surface for combustion engine cylinderliners

Running-in wear modeling of honed surface for combustion engine cylinderliners

A review of scuffing and running-in of lubricated surfaces, with asperities and oxides in perspective

Wear in cylinder liners

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