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

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