Effects of initial surface finish on cam wear

Alamsyah, C.; Dillich, Sara; Pettit, Allison R.

doi:10.1016/0043-1648(89)90060-4

Cited by 14 publications

(3 citation statements)

References 7 publications

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“…Alamsyah et al [1] investigated effects of cam materials initial surface on cam wear under controlled conditions of contacts. Kano and Kimura [2] examined the cam wear for some materials pairs using numerical methods.…”

Section: Introductionmentioning

confidence: 99%

The dry wear profile of cam shaft

İpek¹,

Selçuk²

2005

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 99%

The dry wear profile of cam shaft

İpek¹,

Selçuk²

2005

Journal of Materials Processing Technology

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“…In the past, several researchers evaluated the influence of surface characteristics on the tribological processes for camshaft applications. Alamsyah et al (1989)identified the effect of different manufacturing processes on the wear performance of AISI A10 (milled and ground) and AISI 4,140 (nitrided plus blead blasted) in a cam-follower lubricated tribosystem. They concluded that the pitting and scuffing wear damage was reduced by the post-machining ion nitriding and bead blasting.…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviour of nitrided and nitrocarburized carbon steel used to produce engine parts

Brühl¹,

Cabo²,

Tuckart

et al. 2016

Industrial Lubrication and Tribology

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Purpose – The purpose of this study is to select a proper surface treatment to enhance wear resistance of engine camshafts. The camshaft is a relevant part of a diesel engine which works under torsion, fatigue and wear efforts. They are usually manufactured by casting, forging or machining from forged bar of low alloy steels, and in most cases, the machined surfaces are quenched and tempered by induction heating. After that, in many cases, to withstand the efforts imposed on the active surfaces and improve tribology and fatigue properties, the industry used for decades, thermochemical technologies such as salt bath or gaseous nitriding and nitrocarburizing processes. Design/methodology/approach – This paper studied the effects of plasma nitriding and plasma nitrocarburizing, on the tribological behaviour of the steel SAE 1045HM3 proposed to produce camshafts. After the plasma treatments, the change in surface roughness was measured; the modified layers were studied by X-ray techniques and its thickness by optical microscopy. The diffusion zone was evaluated by Vickers microhardness determinations. Tribology tests were performed by pin-on-disc configuration using WC ball as a counterpart. Findings – Results show that plasma nitrided samples present the best tribological behaviour compared with the nitrocarburized ones; also, the influence of the roughness produced by the thermochemical processes appears to be important. Practical implications – Although both the plasma treatments have been applied for many years, and also reported separately in the scientific literature, there was no information comparing these two treatments for carbon steels, and also, there is not much about tribology in lubricated conditions of nitrided and nitrocarburized carbon steels. In fact, it is not proved that the porosity of the nitrocarburized layer is beneficial for wear resistance in lubricated conditions. In this paper, it was proved that at least in the tested conditions, it is not. Originality/value – Gas or plasma nitrocarburizing is usually recommended for this kind of applications, although the modified layer is porous. This paper attempts to prove that nitriding could be better than nitrocarburizing, even with a thinner white layer.

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“…It is reported that if the surface roughness of the raceways reduce from Ra 0.32µm to Ra 0.04µm, the life of the bearings will improve 2 times; if the surface roughness of the raceways reduce from Ra 0.63µm to Ra 0.08µm～Ra 0.063µm, the life of the bearings will improve 5 times [1]. Also, when the roughness of the raceway surface reduces from Ra0.32~0.16µm to Ra 0.08~0.04µm, the noise level will reduce 4~6dB [2].…”

Section: Introductionmentioning

confidence: 99%

The Finishing of Rolling Bearing Raceway by Electrochemical Mechanical Finishing (ECMF) Technology

Wang

Jiao³

et al. 2011

AMR

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This paper studies the technology of Electrochemical Mechanical Finishing (ECMF) on rolling bearing raceway. The principle of the technology is introduced, and the finishing results are presented. The results show that the surface roughness, supporting length rate, profile roundness, waveness and wave velocity are all improved greatly. Also, the main affecting factors such as the inter-electrode gap, electrochemical process and mechanical process are discussed in this paper. The bearings finished by ECMF have better service performance and life.

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Effects of initial surface finish on cam wear

Cited by 14 publications

References 7 publications

The dry wear profile of cam shaft

The dry wear profile of cam shaft

Tribological behaviour of nitrided and nitrocarburized carbon steel used to produce engine parts

The Finishing of Rolling Bearing Raceway by Electrochemical Mechanical Finishing (ECMF) Technology

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