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Laboratory wear assessment of camshafts' cams

Z. Stanik, K. Witaszek, Wydzia · Transportu

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Abstract

Summary In this work results of laboratory wear tests of specimens made of spheroidal graphite cast iron grade EN-GJS-900-2 have been presented. This cast iron is used for camshafts of FIAT cars manufacturing. The iron has been heat–treated to obtain a hardness, ranging from 37 up to 53 HRC. Dry sliding and lubricated wear tests have been carried out. Their results have been utilized to work out mathematical wear models of the investigated cast iron. These models enabled the assessment of the influence of: lubricant presence, pressure, cam and pusher hardness on the wear rate of the tested material.

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What this paper is about

Summary In this work results of laboratory wear tests of specimens made of spheroidal graphite cast iron grade EN-GJS-900-2 have been presented. This cast iron is used for camshafts of FIAT cars manufacturing. The iron has been heat–treated to obtain a hardness, ranging from 37 up to 53 HRC. Dry sliding and lubricated wear tests have been carried out. Their results have been utilized to work out mathematical wear models of the investigated cast iron. These models enabled the assessment of the influence of: lubricant presence, pressure, cam and pusher hardness on the wear rate of the tested material.

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Available abstract

Summary In this work results of laboratory wear tests of specimens made of spheroidal graphite cast iron grade EN-GJS-900-2 have been presented. This cast iron is used for camshafts of FIAT cars manufacturing. The iron has been heat–treated to obtain a hardness, ranging from 37 up to 53 HRC. Dry sliding and lubricated wear tests have been carried out. Their results have been utilized to work out mathematical wear models of the investigated cast iron. These models enabled the assessment of the influence of: lubricant presence, pressure, cam and pusher hardness on the wear rate of the tested material.

Key concepts: Camshaft, Cast iron, Lubricant, Metallurgy, Materials science, Graphite, Work (physics), Mechanical engineering

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