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

• Main Authors: K., Kadirgama, D., Ramasamy, Kong, Chung Hwa
• Format: Article
• Language: English; English
• Published: Springer Berlin Heidelberg 2017
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://umpir.ump.edu.my/id/eprint/18601/3/fkm-2017-deva-Assessment%20of%20alternative%20methods%20of%20preparing.pdf; http://umpir.ump.edu.my/id/eprint/18601/9/fkm-2017-deva-Assessment%20of%20alternative%20methods%20of%20preparing1.pdf; http://umpir.ump.edu.my/id/eprint/18601/; https://doi.org/10.1007/s40430-017-0789-6

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.