Laser Microtextured Surfaces for Friction Reduction: Does the Pattern Matter?

Putignano, Carmine; Parente, Giuliano; Profito, Francisco J.; Gaudiuso, Caterina; Ancona, Antonio; Carbone, Giuseppe

doi:10.3390/ma13214915

Cited by 18 publications

(23 citation statements)

References 35 publications

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“…Because the honing angle and the spacing between honing grooves are functionally important parameters [100][101][102], a comprehensive description of the spatial properties of the crosshatched structures is needed. Classical spatial parameters do not also describe the pattern of textured surfaces [103], although a method of their description was developed [104]. Horizontal parameters were applied for the characterisation of the surface profile.…”

Section: Spatial Parametersmentioning

confidence: 99%

Functional Importance of Surface Texture Parameters

2021

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Areal 3D analysis of surface texture gives more opportunities than a study of 2D profiles. Surface topography evaluation, considered as 3D dimensional analysis in micro or nanoscales, plays an important role in many fields of science and life. Among many texture parameters, those connected with height are the most often used. However, there are many other parameters and functions that can provide additional important information regarding functional behaviour of surfaces in different applications. The knowledge about the functional importance of various surface properties is low. This review tries to fill this gap. Surface texture parameters are presented in various groups: height, spatial, hybrid, functional, feature, and others. Based on experiences of the present authors and literature review, the relationships among various surface parameters and functional properties are described. A proposal of a selection of parameters on the basis of their functional significations is provided. Considerations for future challenges are addressed.

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Section: Spatial Parametersmentioning

confidence: 99%

Functional Importance of Surface Texture Parameters

2021

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“…r Direct laser writing (DLW) is applied when the texture is of 10's to 100's of micrometers in the scale. The most popular texture is dimples -craters ablated by single or multiple laser pulses used for lubrication and friction reduction [111], [112].…”

Section: B Surface Texturingmentioning

confidence: 99%

Ultra-Short Pulse Lasers for Microfabrication: A Review

Račiukaitis

2021

IEEE J. Select. Topics Quantum Electron.

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Ultra-short pulse lasers, generating coherent light pulses with pulse durations in the picosecond and femtosecond range, are becoming popular in precision laser microfabrication. They are benefiting not only from well-predicted laser ablation with the suppressed heat-affected zone but also by opening new processing opportunities, especially in transparent materials, due to enhanced non-linear interaction with the material. In this review, the evolution of various kinds of mode-locked lasers from a scientific toy to a robust industrial tool is reviewed. The utilization benefits of high-average-power, high-pulse-repetition-rate ultra-short pulse laser are closely related to beam shaping and manipulation techniques. Fast beam scanning with galvanometric and polygon scanners as well as multi-beam parallel processing methods were developed. Some hot applications areas are briefly described. The efficient use of photons from ultra-short pulse lasers pushed the development of optimization methods in the ablation process. Efforts toward upscaling the process by increasing the average power of mode-locked lasers made feedback to laser developers, and burst regime became a necessity as well as high-speed beam scanning devices. Unique opportunities of ultra-short pulses are successfully exploited in machining transparent materials, with glass separation being the leading application.

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“…Because of the unique pattern-dependent properties of the texture, improper design of surface texture will result in adverse effects on the tribological performance (Ibatan et al, 2015;Gropper et al, 2016;Wang and Wang, 2015). Then so far, surface texture parameters optimization has still remained one of research hotspots and some researchers have made contributions to this area (Putignano et al, 2020;Zhang et al, 2018;Wang et al, 2020;Rahmani and Rahnejat, 2018).…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental study on the effect of surface texture with roughness orientation considered under a mixed lubrication state

Wang

et al. 2021

ILT

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Purpose The purpose of this paper is to investigate the effects of surface texture with roughness orientation considered on tribological properties under a mixed lubrication state numerically and experimentally. Design/methodology/approach Based on the average Reynolds equation and asperity contact model, the impacts of surface texture parameters and roughness orientation on lubrication properties have been calculated using finite difference method. Tin–bronze samples with various prescribed surface texture geometric parameters and roughness orientation were fabricated by laser surface texturing technique, and the tribology performance of the textured surface was studied experimentally. Findings The effects of surface geometric parameters and roughness orientation parameters have been discerned. The experimental observations are in good agreement with the numerical prediction, which suggests that the numerical scheme adopted in this work is suitable in capturing the surface texture and roughness effect under mixed lubrication state. Originality/value By meticulously controlling the surface roughness and surface texture geometric characteristics based on the laser surface texturing process, samples with prescribed surface texture parameters and roughness orientation consistent with that in theoretical studies were fabricated and the theoretical model and results were verified experimentally.

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Laser Microtextured Surfaces for Friction Reduction: Does the Pattern Matter?

Cited by 18 publications

References 35 publications

Functional Importance of Surface Texture Parameters

Functional Importance of Surface Texture Parameters

Ultra-Short Pulse Lasers for Microfabrication: A Review

Numerical and experimental study on the effect of surface texture with roughness orientation considered under a mixed lubrication state

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