Investigation on the application of YAG laser texturing technology to the cylinder wall of auto engine

Jin, Zuanming

doi:10.1108/ilt-12-2011-0109

Cited by 13 publications

(15 citation statements)

References 10 publications

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“…Koszela et al 15 conducted experimental investigations of the oil pockets distribution effects on the tribological performance under mixed lubrication conditions, validating surface texturing results in significant improvement in wear resistance. By texturing on cylinder liner with emphasis on dimple distribution angle, Yang et al 16 found laser texturing could improve the anti-wear property in comparison with mechanical honing. For different circumstances, Yu et al 17 suggested that the design of dimple patterns should follow the hydrodynamic principle.…”

Section: Introductionmentioning

confidence: 99%

Effects of the array modes of laser-textured micro-dimples on the tribological performance of cylinder liner–piston ring

Yin

Jia

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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A mixed lubrication model of textured cylinder liner-piston ring was built to investigate the effects of four array modes namely, square array, stagger array, stretching, and shortening along liner axis array of micro-dimples on the tribological properties of cylinder liner-piston ring pair. The simulation results indicate that micro-dimples can enhance the hydrodynamic effects of lube oil, improving the film bearing capability. However, the effects differ significantly under the four dimple array modes: for square array, the cylinder liner-piston ring pair is well lubricated due to the synergistic effects of uniformly spaced micro-dimples that form homogeneous bearing film even around the fired top dead center where the lubrication condition is harsh; while the film of stagger array is the thinnest among the four schemes, which means its lubrication is also the worst. From square array mode, to shortening and stretching along liner axis array, then to stagger array mode, the total friction force of cylinder liner-piston ring shows an upward trend. By utilizing laser surface texturing method, square array, stretching along liner axis array, and stagger array of micro-dimples were textured on the gasoline engine cylinder bores, followed by a set of engine bench tests. The experimental results demonstrate that the engine motored torque of the three array modes increases in turns, which validates that the anti-friction effect of square array is optimal whereas that of stagger array is the most inefficient.

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Section: Introductionmentioning

confidence: 99%

Effects of the array modes of laser-textured micro-dimples on the tribological performance of cylinder liner–piston ring

Yin

Jia

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Textured dimples have the function of trapping wear debris. Researches by He et al (2015b), Zhan and Yang (2014), Borghi et al, (2008), Segu and Hwang (2015), Roy et al (2015), Hammouti et al (2015) showed that evacuation of wear particles out of contact was a crucial point to avoid abrasive wear caused by the presence of a third body. Wang et al, 2014 reported that hardened edges of laser dimples could further enhance wear resistance of textured specimens.…”

Section: Friction and Wear Propertiesmentioning

confidence: 99%

“…Circular dimple texture is commonly used because it is featured with processing convenience and easy implementation (Wakuda et al, 2003;Pettersson and Jacobson, 2006;Zhou et al, 2015). Zhan and Yang (2014) showed that friction coefficient and wear rate were reduced in laser dimple textured cylinders. He et al (2015b) reported that micro dimples on beryllium bronze specimen surfaces achieved using femtosecond laser had good wear resistance performance.…”

Section: Introductionmentioning

confidence: 99%

Comparisons of tribological properties between laser and drilled dimple textured surfaces of medium carbon steel

Shi

et al. 2017

ILT

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Purpose The study aims to compare tribological properties between laser dimple textured surface and drilled dimple textured surface, and to analyze the influence of dimple hardened edges and ability of trapping wear debris on wear properties of dimple textured surfaces. Design/methodology/approach Circular textured dimples were produced on AISI 1,045 specimen surfaces using laser surface texturing (LST) and drilled surface texturing (DST) methods. Tribological behaviors of LST, DST and non-textured specimens were studied using ball-on-disc tribo-tester. Metallographic structures, dimples and worn surface morphologies were observed using a three-dimensional digital microscope. Hardnesses of substrate and dimple edges were measured. Findings There was no obvious difference in wear and friction coefficients between LST and DST specimens. Hardnesses of laser dimple edges were much higher than that of drilled dimple edges and specimen substrate. The hardened materials of laser dimple edge included recast zone and heat affect zone. Laser dimple was cone-shaped and drilled dimple was cylinder-shaped. Drilled dimple had a better ability of trapping wear debris than laser dimple. Non-uniform wear phenomenon occurred on worn surfaces of LST dimple specimens. Originality/value The ability of textured dimples to trap wear debris is affected by single dimple volume. Hardened edges of dimples cause non-uniform wear on worn surfaces of LST specimens.

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“…Moreover, micro-dimples and nano-dimples are considered as the important surface texturing for improving the tribological properties of interacting surfaces in micro-electro-mechanical systems (Yasumaru et al, 2008). Most of the texturing is applied on the substrates, where laser is applied directly onto the metal surface (Zhan and Yang, 2014;Lin et al, 2015). Other surface improvement such as applying coating on coated metal is still in research progress.…”

Section: Surface Texturingmentioning

confidence: 99%

Laser surface texturing and its contribution to friction and wear reduction: a brief review

Baharin

Ghazali

Wahab

2016

Industrial Lubrication and Tribology

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Purpose – The purpose of this paper is to make people aware of the increase usage of laser system in surface texturing process. Design/methodology/approach – As it is a brief review paper, no particular method was used. Findings – It has been found that most of the surface texturing methods used mas laser beam machining using Nd:YAG laser. It shows that the realization of the textured surface helps to reduce friction and wear which can increase the life span of a material. Research limitations/implications – Most of the texturing is done on the substrates directly, and few research were conducted on coated surface of the material, which coating is also known as an excellent method to improve tribological properties. Originality/value – The paper shows details on the recent development of surface texturing and its contribution to friction and wear reduction.

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Investigation on the application of YAG laser texturing technology to the cylinder wall of auto engine

Cited by 13 publications

References 10 publications

Effects of the array modes of laser-textured micro-dimples on the tribological performance of cylinder liner–piston ring

Effects of the array modes of laser-textured micro-dimples on the tribological performance of cylinder liner–piston ring

Comparisons of tribological properties between laser and drilled dimple textured surfaces of medium carbon steel

Laser surface texturing and its contribution to friction and wear reduction: a brief review

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