Friction studies of metal surfaces with various 3D printed patterns tested in dry sliding conditions

In recent years, 3D scanning and printing of plastics has rapidly matured while printing of metallic parts is only gaining popularity due to required refinements of technology combined with cost- and resources effectiveness for the main components of printers and consumables. The 3D printing allows...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part J, Journal of engineering tribology Journal of engineering tribology, 2018-01, Vol.232 (1), p.43-53
Main Authors: Holovenko, Y, Antonov, M, Kollo, L, Hussainova, I
Format: Article
Language:English
Subjects:
Coefficient of friction
Configuration management
Control stability
Dimpling
Friction
Laser beam melting
Mechanical engineering
Metal surfaces
Microstructural analysis
Polymers
Scanning
Sliding
Stainless steel
Stainless steels
Three dimensional printing
Wear mechanisms
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Summary:In recent years, 3D scanning and printing of plastics has rapidly matured while printing of metallic parts is only gaining popularity due to required refinements of technology combined with cost- and resources effectiveness for the main components of printers and consumables. The 3D printing allows producing complicated shapes that can be hardly produced by conventional mechanical tools and can provide the functionalization of surfaces. In this work, several different stainless steel (AISI 316 L) surface patterns (flat, gecko’s fibrils, dimples, pyramids, mushrooms, mesh, brush, inclined brush) intended for controlling the coefficient of friction were printed with the help of a 3D metal printer by selective laser melting technique. Unidirectional sliding tests were performed with pin-on-disc configuration. Sliding velocity of 5 × 10−3 m/s and continuously increasing load ranged from 5 to 103 N has been applied in the course of “scanning” mode and accompanied by simultaneous recording of the coefficient of friction. A stainless steel (AISI 316) disc counterbody was used in this series of the tests. It was found that the 3D printed structures allow to control the value and stability of the coefficient of friction in a wide range of loads. Microstructural analysis of the worn samples was performed to support the conclusions regarding wear mechanism.
ISSN:1350-6501
2041-305X
DOI:10.1177/1350650117738920