Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface Texturing
Surface texturing is an option of surface engineering resulting in reduction of friction due to the creation of isolated dimples or grooves on sliding surfaces. The purpose of this work is to find the effect of the groove bottom profiles on the reduction of the friction force.<b> </b>Inv...
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doaj-b004c2766ae7409389f3e5fc0c204b5b2020-11-25T01:48:39ZengMDPI AGCoatings2079-64122020-02-0110322110.3390/coatings10030221coatings10030221Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface TexturingSlawomir Wos0Waldemar Koszela1Andrzej Dzierwa2Pawel Pawlus3Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, PolandFaculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, PolandFaculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, PolandFaculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, PolandSurface texturing is an option of surface engineering resulting in reduction of friction due to the creation of isolated dimples or grooves on sliding surfaces. The purpose of this work is to find the effect of the groove bottom profiles on the reduction of the friction force.<b> </b>Investigations were conducted using an Optimol SRV5 tribotester equipped with a pin-on-disc module. A disc made of 42CrMo4 steel, with a 100 mm diameter acted as a sample. A counter-sample was made of the same material, however, its diameter was 20 mm. The sliding conditions were selected to be similar to those of a sliding crankpin bearing pad operating in a high-performance internal combustion engine. Surface texturing was found to be beneficial for a reduction in the friction coefficient up to 55% in comparison to the untextured disc. Tribological performances of discs with spiral groove patterns were better than those with a radial layout. In most cases the convergent profile of the groove bottom was superior to the dam shape.https://www.mdpi.com/2079-6412/10/3/221surface texturingpin-on-discconformal contactfriction forcelubricated sliding |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Slawomir Wos Waldemar Koszela Andrzej Dzierwa Pawel Pawlus |
spellingShingle |
Slawomir Wos Waldemar Koszela Andrzej Dzierwa Pawel Pawlus Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface Texturing Coatings surface texturing pin-on-disc conformal contact friction force lubricated sliding |
author_facet |
Slawomir Wos Waldemar Koszela Andrzej Dzierwa Pawel Pawlus |
author_sort |
Slawomir Wos |
title |
Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface Texturing |
title_short |
Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface Texturing |
title_full |
Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface Texturing |
title_fullStr |
Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface Texturing |
title_full_unstemmed |
Friction Reduction in Unidirectional Lubricated Sliding Due to Disc Surface Texturing |
title_sort |
friction reduction in unidirectional lubricated sliding due to disc surface texturing |
publisher |
MDPI AG |
series |
Coatings |
issn |
2079-6412 |
publishDate |
2020-02-01 |
description |
Surface texturing is an option of surface engineering resulting in reduction of friction due to the creation of isolated dimples or grooves on sliding surfaces. The purpose of this work is to find the effect of the groove bottom profiles on the reduction of the friction force.<b> </b>Investigations were conducted using an Optimol SRV5 tribotester equipped with a pin-on-disc module. A disc made of 42CrMo4 steel, with a 100 mm diameter acted as a sample. A counter-sample was made of the same material, however, its diameter was 20 mm. The sliding conditions were selected to be similar to those of a sliding crankpin bearing pad operating in a high-performance internal combustion engine. Surface texturing was found to be beneficial for a reduction in the friction coefficient up to 55% in comparison to the untextured disc. Tribological performances of discs with spiral groove patterns were better than those with a radial layout. In most cases the convergent profile of the groove bottom was superior to the dam shape. |
topic |
surface texturing pin-on-disc conformal contact friction force lubricated sliding |
url |
https://www.mdpi.com/2079-6412/10/3/221 |
work_keys_str_mv |
AT slawomirwos frictionreductioninunidirectionallubricatedslidingduetodiscsurfacetexturing AT waldemarkoszela frictionreductioninunidirectionallubricatedslidingduetodiscsurfacetexturing AT andrzejdzierwa frictionreductioninunidirectionallubricatedslidingduetodiscsurfacetexturing AT pawelpawlus frictionreductioninunidirectionallubricatedslidingduetodiscsurfacetexturing |
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