Research on Tribological Performance of Cylinder Liner by Micro-Laser Surface Texturing

2011 ◽  
Vol 4 (4) ◽  
pp. 1318-1324 ◽  
Author(s):  
Yin Bifeng ◽  
Li Xiaodong ◽  
Fu Yonghong ◽  
Wang Yun
Keyword(s):  
Surface Texturing ◽  
Cylinder Liner ◽  
Tribological Performance ◽  
Laser Surface ◽  
Laser Surface Texturing

scholarly journals Tribological Performance of Random Sinter Pores vs. Deterministic Laser Surface Textures: An Experimental and Machine Learning Approach

2021 ◽  
Author(s):  
Guido Boidi ◽  
Philipp G. Grützmacher ◽  
Markus Varga ◽  
Márcio Rodrigues da Silva ◽  
Carsten Gachot ◽  
...  
Keyword(s):  
Machine Learning ◽  
Surface Texturing ◽  
Tribological Performance ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Learning Approach ◽  
Machine Learning Approach ◽  
Surface Irregularities ◽  
Sintered Materials ◽  
Surface Pores

This work critically scrutinizes and compares the tribological performance of randomly distributed surface pores in sintered materials and precisely tailored laser textures produced by different laser surface texturing techniques. The pore distributions and dimensions were modified by changing the sintering parameters, while the topological features of the laser textures were varied by changing the laser sources and structuring parameters. Ball-on-disc tribological experiments were carried out under lubricated combined sliding-rolling conditions. Film thickness was measured in-situ through a specific interferometry technique developed for the study of rough surfaces. Furthermore, a machine learning approach based on the radial basis function method was proposed to predict the frictional behavior of contact interfaces with surface irregularities. The main results show that both sintered and laser textured materials can reduce friction compared to the untextured material under certain operating conditions. Moreover, the machine learning model was shown to predict results with satisfactory accuracy. It was also found that the performance of sintered materials could lead to similar improvements as achieved by textured surfaces, even if surface pores are randomly distributed and not precisely controlled.

Sign in / Sign up

Export Citation Format

Share Document