Citation

Liew, Kia Wai and Kok, Chee Kuang and Mhd Noor, Ervina Efzan (2016) Effect of EDM dimple geometry on friction reduction under boundary and mixed lubrication. Tribology International, 101. pp. 1-9. ISSN 0301-679X

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Abstract

The purpose of this work is to study the effect of electrical discharge machined (EDM) dimple geometry on friction reduction under boundary and mixed lubrication. Three different types of dimple geometry were designed with equal area density of 10.4% and EDM on test surfaces of aluminium alloy 7075 square pins. The specimens were tested against a rotating high speed steel counter-disc using a pin on disc apparatus under mixed lubrication condition. Tribo-tests were conducted at increasing sliding speed with varying nominal contact pressures. The friction coefficient of the EDM dimpled specimens are found 11–24% lower than that of the non-textured specimens. It is also found that the round dimple geometry gives the lowest friction and wear among others.

Item Type:	Article
Uncontrolled Keywords:	Friction; Wear; Surface texture; Mixed lubrication
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	07 Dec 2017 13:56
Last Modified:	07 Dec 2017 13:56
URII:	http://shdl.mmu.edu.my/id/eprint/6578

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