Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/36968
Title: Effect of grooved surface texturing on the behavior of lubricated contacts
Other Titles: Influência da texturização superficial no comportamento de contactos lubrificados
Authors: Raza, Khawaja Khalid 
Orientador: Ramalho, Amílcar
Vilhena, Luis
Keywords: Texturização de superfície; Sulcos; Curvas stribeck; Lubrificação
Issue Date: Jul-2016
metadata.degois.publication.location: Coimbra
Abstract: The goal of this research study was to investigate the effect of grooved surface texturing with a rhombic geometry under different lubrication regimes. Tribological study under unidirectional sliding was focused on the effect of texturing parameters such as groove depth, groove width, distance between grooves and pattern area density on the coefficient of friction under different lubrication regimes achieved by varying sliding speed and lubricant viscosity. Three types of grooved patterns with different textured area densities were produced on steel samples by electrical discharge machining (EDM). The largest gain in terms of friction reduction was observed by using lowest texture density specimen by using medium viscosity oil (ISOVG 150) at higher sliding speeds. Inspection of sliding surfaces has not revealed any measurable wear for the contact conditions investigated.
Description: Dissertação de Mestrado em Engenharia Mecânica, apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
URI: https://hdl.handle.net/10316/36968
Rights: openAccess
Appears in Collections:UC - Dissertações de Mestrado
FCTUC Eng.Mecânica - Teses de Mestrado

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