Study of thickness dependence of sputtered-carbon coating for low friction valve lifters

Lindholm, Per; Svahn, Fredrik

doi:10.1016/j.wear.2005.10.002

Cited by 11 publications

(7 citation statements)

References 15 publications

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“…Baja juga sering terlibat dalam dunia otomotif sering dijadikan sebagai bahan dasar pembuat lokomotif [11]. Baja juga memiliki nilai titik leleh yang tinggi dan tidak mudah patah, nilai titik leleh baja mencapai 1300 o C -1500 o C [12]. Hoffmeyer [13] juga meneliti bahwa crankshaft berbahan baja paduan memiliki kekuatan mekenikal yang bagus dan tahan terhadap panas.…”

Section: A Deformasiunclassified

Analisis Kinerja Connecting Rod Menggunakan MEH (Metode Elemen Hingga) dengan Material Baja Paduan

Rahman¹,

Putra²,

Tjiptady³

2022

Metrotech

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Penelitian ini bertujuan untuk menganalisis kerja connecting rod dengan metode elemen hingga. Connecting rod yang dianalisis menggunakan material baja paduan. Analisis ini dimaksudkan untuk mengatasi masalah kegagalan pada connecting rod akibat modifikasi yang ekstrem. Pengujian metode elemen hingga menggunakan software ANSYS 18.1 dengan gaya tekan sebesar 12 kg/cm2. Proses meshing menghasilkan 6394 elemen dan 11676 nodal. Simulasi menggunakan MEH ditujukan untuk menganalisis total deformasi, tegangan normal, dan tegangan geser. Hasil simulasi menunjukkan bahwa deformasi maksimum sebesar 0,0000939, sedangkan deformasi minimum sebesar 0,0000104 mm. Pada analisis simulasi tegangan normal menunjukkan nilai maksimum sebesar 1,351x1010 Pa dan nilai minimum sebesar -8,460x1010. Selanjutnya analisis tegangan geser maksimum mencapai 2,848x1010 Pa dan nilai tegangan geser minimum sebesar -3,0851x1010 Pa. Dari penelitian kinerja connectin rod dapat daimbil keputusan bahwa connecting rod dengan material Baja paduan memiliki hasil kinerja yang positif.

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Section: A Deformasiunclassified

Analisis Kinerja Connecting Rod Menggunakan MEH (Metode Elemen Hingga) dengan Material Baja Paduan

Rahman¹,

Putra²,

Tjiptady³

2022

Metrotech

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“…Most studies on cam-follower contacts are addressed to friction and wear measurements for investigating the influence of lubricant additives and surface coatings, finish and texture, see Willermet et al (1991), Soejima et al (1999), Lindhom and Svahn (2006), Kano (2006), Lewis and Dwyer-Joyce (2002). The friction force (or torque) is often calculated by subtracting the contributions of other components and inertia actions from the measured values, as in Kano (2006), Baş et al (2003).…”

Section: Introductionmentioning

confidence: 99%

Analysis of dynamics and friction resistance in the cam-tappet system

Siczek

Stefański

2019

Journal of Theoretical and Applied Mechanics

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In this paper, the influence of friction resistance and mutual contact interaction on dynamical properties of the cam-tappet mechanism is analyzed. A dynamical model of the cam-tappet contact has been developed. Chosen results of numerical simulations of this model are presented for cases with and without oil lubrication in contact zones. Various phenomena accompanying the cam-tappet contact dynamics have been observed, e.g., change of the global direction of tappet rotation, local oscillation of these revolutions, changes of friction in function of frequency of the camshaft longitudinal vibrations. We confirm, that the growing amplitude of camshaft longitudinal vibration causes an increase in the tappet rotational speed, whereas its reducing to small values leads to stopping the tappet rotation.

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“…These fact leads to an insufficient bearing capacity of the lubricant film accompanied by high thermal conditions, plastic and elastic deformations and spalling. The pieces of material removed from the surfaces by the spalling process leads to abrasive wear [3,4,5]. Also the superficial layer fatigue leads to material concentration and cracks due to the high normal and shear stresses.…”

Section: Introductionmentioning

confidence: 99%

A Study on Plastic Deformations due to Contact Fatigue Wear on a Metallic Coating Deposed in Electric Arc

Băsescu

Crîșmaru

Strugaru

et al. 2013

AMR

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This paper studies the way how a sample with a 40Cr130 coating behaves to contact fatigue wear from the perspective of plastic deformations. The sample is made of an 18MnCr11 alloy steel. The coating was deposited in electric arc using the Smart Arc 350 installation from Sulzer Metco. The samples was subjected to fatigue wear on the AMSLER installation in limit and mixed lubrication conditions. The samples were subjected to wear for 30 hours, at a loading force of 177 N. The moving sample had a rotational speed of 375 rot/min. Different combinations of contact materials were used for the test samples: coating coating and coating base material. The results were highlighted using the QUANTA 200 3D DUAL BEAM electron microscope.

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Study of thickness dependence of sputtered-carbon coating for low friction valve lifters

Cited by 11 publications

References 15 publications

Analisis Kinerja Connecting Rod Menggunakan MEH (Metode Elemen Hingga) dengan Material Baja Paduan

Analisis Kinerja Connecting Rod Menggunakan MEH (Metode Elemen Hingga) dengan Material Baja Paduan

Analysis of dynamics and friction resistance in the cam-tappet system

A Study on Plastic Deformations due to Contact Fatigue Wear on a Metallic Coating Deposed in Electric Arc

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