Influence of Laser Micro-Mesh Texturing on the Tribological Performance in an EHL Point Contact
Fabricating surfaces with controlled micro-geometry may be an effective approach to improved tribological performance. In this paper, the effect of laser surface micro-mesh texturing on the tribological performance is investigated theoretically with numerical solution of EHL point contact. In the theoretical model, the Reynolds equation is used as the governing equation. Well controlled micro-mesh texturing is described in film thickness equation. By Full Multi-Grid (FMG) method, the solutions of film thickness profile and pressure distribution map are present over a wide range of texturing parameters. The influence of width, depth and orientation of mesh texturing on the friction coefficient is analyzed. Result shows that, the film thickness profile and pressure distribution are sensitive to the parameters of micro-mesh texturing. The curve result of friction coefficient under two load conditions indicated that the parameters of mesh are key factor for texturing design. Solutions demonstrate the ability of numerical simulation on the design and optimization of surface mesh texturing.
Yu Zhou, Shan-Tung Tu and Xishan Xie
X. Wang et al., "Influence of Laser Micro-Mesh Texturing on the Tribological Performance in an EHL Point Contact", Key Engineering Materials, Vols. 353-358, pp. 796-800, 2007