Surface Textures Fabricated by Laser Surface Texturing and Diamond Cutting - Influence of Texture Depth on Friction and Wear

2018 ◽  
Vol 20 (4) ◽  
pp. 1700995 ◽  
Author(s):  
Jun-Jie Zhang ◽  
Jian-Guo Zhang ◽  
Andreas Rosenkranz ◽  
Xiao-Li Zhao ◽  
Ye-Lin Song
Keyword(s):  
Friction And Wear ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Diamond Cutting ◽  
Surface Textures

Tribological effects of laser surface texturing and residual stress

2018 ◽  
Vol 70 (1) ◽  
pp. 126-132 ◽  
Author(s):  
Shuwen Wang ◽  
Feiyan Yan ◽  
Ao Chen
Keyword(s):  
Residual Stress ◽  
Wear Resistance ◽  
Friction And Wear ◽  
Surface Texturing ◽  
Laser Surface ◽  
Friction Reduction ◽  
Laser Surface Texturing ◽  
Wear Testing ◽  
Content Type ◽  
Surface Textures

Purpose The purpose of this paper is to investigate the tribological effects of laser surface texturing (LST) and residual stress on functional surfaces. Design/methodology/approach Three different surface textures (circular dimple, elliptical dimple and groove) with two different textured area ratios (10 and 20 per cent) are designed and fabricated by a Picosecond Nd YAG Laser machine. The friction and wear performance of textured specimens is tested using a UMT-2 friction and wear testing machine in mixed lubrication. Findings Test results show that elliptical dimples exhibit the best performance in wear resistance, circular dimples in friction reduction and grooves in stabilization of friction. The surfaces with larger textured area density exhibit better performance in both friction reduction and wear resistance. The improved performance of LST is the coupled effect of surface texture and residual stress. Originality/value The findings of this study may provide guidance for optimal design of functional surface textures in reciprocating sliding contacts under mixed or hydrodynamic lubrication, which can be used in automotive and other industrial applications.

scholarly journals Effect of laser surface texturing (LST) on tribochemical films dynamics and friction and wear performance

Wear ◽  
2015 ◽  
Vol 332-333 ◽  
pp. 1225-1230 ◽  
Author(s):  
Bolutife Olofinjana ◽  
Cinta Lorenzo-Martin ◽  
Oyelayo O. Ajayi ◽  
Ezekiel O. Ajayi
Keyword(s):  
Friction And Wear ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Wear Performance ◽  
Tribochemical Films

scholarly journals Combined friction and wear reduction in a reciprocating contact through laser surface texturing

Wear ◽  
2016 ◽  
Vol 358-359 ◽  
pp. 51-61 ◽  
Author(s):  
Sorin-Cristian Vlădescu ◽  
Andrew V. Olver ◽  
Ian G. Pegg ◽  
Tom Reddyhoff
Keyword(s):  
Friction And Wear ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Wear Reduction

Friction and Wear of MoS2 Films on Laser Textured Steel Surfaces

2008 ◽  
Author(s):  
Lev Rapoport ◽  
Alexey Moshkovich ◽  
Vladislav Perfilyev ◽  
Igor Lapsker ◽  
Gregory Halperin ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Solid Lubricant ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Wear Life ◽  
Lubricant Films ◽  
Mos2 Film ◽  
Steel Surfaces ◽  
Solid Lubricant Films

Incorporation of solid lubricant into micro-reservoirs produced by Laser Surface Texturing (LST) and its effect on the tribological properties of surfaces under dry friction is studied. The density of the dimple reservoirs and the height of the bulges around them are investigated in terms of the longevity of solid lubricant films burnished on LST steel surfaces. Friction tests were performed using a ball-on-flat device. Optimum density (40–50%) of the dimples is revealed. It is shown that the adhesion of solid lubricant in the space between the dimples is provided by mechanical engagement of particles in the rough surface and by smearing the solid lubricant around the dimples. Best results are obtained with the surfaces that were lapped to half of the height of bulges. Long wear life of burnished film on LST steel surfaces is apparently provided by preservation of thin MoS2 film around the bulges and by supply of solid lubricant from the dimples to the surface. The effect of repeated burnishing on wear life of solid lubricant films was studied. Repeating burnishing leading to increasing the density of solid lubricant films increases the wear life.

scholarly journals Effects of Laser Surface Texturing and Lubrication on the Vibrational and Tribological Performance of Sliding Contact

Lubricants ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 10
Author(s):  
Shunchu Liu ◽  
Qingyi Sai ◽  
Shuwen Wang ◽  
John Williams
Keyword(s):  
Surface Texturing ◽  
Picosecond Laser ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Textured Surface ◽  
Area Density ◽  
Surface Textures ◽  
Frictional Surfaces ◽  
Frictional Vibrations ◽  
Frictional Noise

Various textures are fabricated by a picosecond laser machine on the surfaces of circular stainless steel specimens. Vibrational and tribological effects of laser surface textures are investigated by means of a tribometer and a data acquisition and signal processing (DASP) system. Experimental results show that surface textures can reduce the coefficients of friction (COFs), enhance the wear resistance, and improve the dynamical performance of frictional surfaces. In this study, the surface with micro circular dimples in diameter of 150 μm or textured area density of 25% has the best tribological and dynamical performance. Compared with the non-textured surface, the surface with circular dimples in diameter of 150 μm and 15% textured area density has 27% reduction of COFs, 95% reduction of frictional vibrations, and 66% reduction of frictional noise. The frictional vibrations and noise in the sliding contacts can be effectively reduced by adding graphene to the lubrication oil, and the surface textures enhance the frictional noise reduction performance of lubrication.

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