Original scientific paper

https://doi.org/10.17559/TV-20200915110030

Tribological Assessment of Aluminum Cylinder Material for Piston Compressors in Trucks and Buses Brake Systems

Saša Milojević* orcid.org/0000-0003-0569-047X ; University of Kragujevac, Faculty of Engineering, Department for Motor Vehicles and Engines, Sebia, Kragujevac 34000, Sestre Janjić 6
Dragan Džunić orcid.org/0000-0002-1914-1298 ; University of Kragujevac, Faculty of Engineering, Department for Production Engineering, Sebia, Kragujevac 34000, Sestre Janjić 6
Dejan Marić* orcid.org/0000-0002-0142-1750 ; University of Slavonski Brod, Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlic Mazuranic 2, HR-35000 Slavonski Brod, Croatia
Tomáš Skrúcaný orcid.org/0000-0002-1610-4643 ; University of Žilina, Faculty of operation and economics of transport and communications, Department of road and urban transport, Slovakia, Žilina 010 26, Univerzitná 8215/1
Slobodan Mitrović orcid.org/0000-0003-3290-7873 ; University of Kragujevac, Faculty of Engineering, Department for Production Engineering, Sebia, Kragujevac 34000, Sestre Janjić 6
Radivoje Pešić orcid.org/0000-0002-9669-1744 ; University of Kragujevac, Faculty of Engineering, Department for Motor Vehicles and Engines, Sebia, Kragujevac 34000, Sestre Janjić 6

Abstract

Applying new technologies to reduce friction and wear in vehicles and equipment can minimize mechanical losses. This reduces power loss in internal combustion engines and reduces fuel consumption and emissions. Consumption of fuel energy can be reduced by the use of light metals, for example aluminum alloy, to produce vehicles and their aggregates and parts. In this case, the problem is poor tribological properties of those light weight metals, as well as the lower strength compared to the cast iron construction. For tribology research purposes, the contact surface of the aluminum cylinder of an experimental piston air compressor is reinforced with inserts of cast iron. The results of tribology research of the composite material are presented in the paper, explaining how parameters such as the sliding speed, contact time and contact area influence friction and wear of the material in relative tribological contacts, under constant normal force. The test procedures were performed on the ball-on-plate CSM® nanotribometer, in linear reciprocating sliding conditions with no lubricant. Material composition of the samples was determined using the Energy-Dispersive Spectroscopy. All measurements were realized at the Faculty of Engineering, University of Kragujevac.

Keywords

aluminum cylinder; friction and wear; piston compressor; tribological reinforcements; tribometer

Hrčak ID:

260849

URI

https://hrcak.srce.hr/260849

Publication date:

22.7.2021.

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