An experimental study of diesel engine cam and follower wear with particular reference to the properties of the materials

Michalski, Jacek; Marszalek, J; Kubiak, Krzysztof

doi:10.1016/s0043-1648(00)00353-7

Cited by 23 publications

(9 citation statements)

References 4 publications

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“…4 Therefore, the cam and follower system contain the important parts to study in order to reduce frictional losses. Today, many studies [5][6][7][8] have been conducted on the friction properties of the cam mechanism. Researchers 9 generally use a conventional test apparatus in which the friction torque is measured on the cam side of the cam / follower system by fixing a torque meter to the shaft.…”

Section: Introductionmentioning

confidence: 99%

A New Test Apparatus for the Tribological Behavior of Cam Mechanisms

Baş

Bıyıklıoğlu

Çuvalcı

2003

Experimental Techniques

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Section: Introductionmentioning

confidence: 99%

A New Test Apparatus for the Tribological Behavior of Cam Mechanisms

Baş

Bıyıklıoğlu

Çuvalcı

2003

Experimental Techniques

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“…For single-phase materials, grain boundaries may play an important role in crack development [ 36 , 37 , 38 ]. Similar relationships between cracking and microstructure can occur in fatigue wear [ 39 , 40 , 41 , 42 , 43 , 44 ]. However, often when conducting observations or calculations to predict the morphology of thermal fatigue wear crack mesh, for simplicity’s sake, a complex factor related to the morphology of precipitates, such as carbides, is not taken into account [ 45 , 46 , 47 , 48 , 49 , 50 ].…”

Section: Introductionmentioning

confidence: 98%

Tool Wear Issues in Hot Forging of Steel

et al. 2023

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Steel forging tools are subjected to a number of tribological wear mechanisms depending on the geometry and surface of the tool and the flow of the material. Thus, there is no single general tribological wear mechanism, and only the predominant wear mechanisms in this case can be indicated. The problem has been known for years, but due to its complexity research on it is still relevant. In this study, the various wear mechanisms of hot work tools are analyzed on the basis of original research. Moreover, the influence of the micro- and macrostructure of the material and of its mechanical, physical, and technological characteristics on susceptibility to a given type of wear is considered. Adhesive wear, wear caused by plastic deformation, mechanical fatigue, thermal fatigue, the influence of hardness, heat treatment, and impact strength on tool wear and the mechanisms causing this wear are discussed in addition to tribological wear mechanisms such as abrasive wear. The influence of thermomechanical history and the characteristics of the tool material, including structural anisotropy, on the wear of these tools is indicated. The analysis of wear mechanisms performed will enable more precise definition of the principles of tool material selection and tool material condition for the hot forging of steel.

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“…The contact surfaces of the cam and the follower are usually surface hardened. The hardening may be due to phase transformation or precipitation processes, occurring on the material during heat treatment or thermochemical treatment [5].…”

Section: Introductionmentioning

confidence: 99%

The Cathodic Electrolytic Plasma Hardening of Steel and Cast Iron Based Automotive Camshafts

Dayanç¹,

Karaca²,

Kumruoğlu

2017

Acta Phys. Pol. A

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Cathodic electrolytic plasma hardening is a novel thermochemical surface modification and hardening process, used to increase wear resistance and surface hardness of metallic components in a local area of interest. The heating efficiency is related with the plasma nozzle design, applied current and electrolyte. The nozzle design is also a critical factor for the hardening of complex shapes, such as gears and camshafts. In this work, lobes of camshafts, fabricated from several cast iron and steel grades were hardened by cathodic electrolytic plasma hardening in aqueous carbonate electrolyte, using a specific plasma nozzle. The camshafts were attached to CNC lathe for turning them in the horizontal axis. In order to optimise heating and to achieve the ideal flowing and wetting by the electrolyte of the lobe case, the ceramic ellipse-shaped nozzle outlet was designed. As a result of preliminary studies, external surface of lobes was heated and subsequently quenched by electrolyte. The hardness of processed surface was in the range of 50-60 HRc for the different camshafts. No distortion was observed on the surface of lobes. Hardness depth was measured to be from 0.1 mm to 5 mm for several lobes.

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An experimental study of diesel engine cam and follower wear with particular reference to the properties of the materials

Cited by 23 publications

References 4 publications

A New Test Apparatus for the Tribological Behavior of Cam Mechanisms

A New Test Apparatus for the Tribological Behavior of Cam Mechanisms

Tool Wear Issues in Hot Forging of Steel

The Cathodic Electrolytic Plasma Hardening of Steel and Cast Iron Based Automotive Camshafts

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