Assessment of Alternative Methods of Preparing Internal Combustion Engine Cylinder Bore Surfaces for Frictional Improvement

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Abstract

A smooth polished surface has a great potential to lead to low friction and wear in internal combustion engines (ICE). Alternative methods to create a smooth dimpled surface on a hypereutectic aluminium (aluminium die cast) ADC12 substrate for frictional improvements are evaluated in this study using an oscillating wear tester (OWT). It was found that the samples embossed with #480 grit sandpaper and sandblasted with #240 sieve sand samples had the more desired properties with a reduced coefficient of friction (μ) of 23% at low sliding speeds before hydrodynamic lubrication mode and 6.9% in the fully hydrodynamic lubrication region. Although samples cast with added graphite powder had much lower friction, it had insufficient oil retention volume and resistance against catastrophic wear.

Item Type:	Article
Uncontrolled Keywords:	Internal combustion engine; Oscillating wear tester; Aluminium matrix; Lubrication
Subjects:	T Technology > TJ Mechanical engineering and machinery
Faculty/Division:	Centre of Excellence: Automotive Engineering Centre Centre of Excellence: Automotive Engineering Centre Faculty of Mechanical Engineering
Depositing User:	Dr Devarajan Ramasamy
Date Deposited:	27 Oct 2017 08:31
Last Modified:	26 Dec 2017 02:05
URI:	http://umpir.ump.edu.my/id/eprint/18601
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