Laser Melting and Surface Texture Technology: Effect on Friction Properties

Abstract

This paper discusses the role of laser surface texturing and laser melting technology in enhancing surface lubrication and wear resistance under starved lubrication conditions. The aim is to enhance the wear resistance of laser surface texturing and to explore the role of surface texturing in enhancing lubrication. This paper observes the microstructure of the melting zone, transition zone and matrix of the base material Cr12MoV after laser melting and condensing, detects and analyses the metallographic composition, and tests the micro-hardness. The effects of laser surface texturing technology and laser melting technology on the coefficient of friction under different friction and wear environments were comparatively investigated. The laser melting zone consists of martensite with fine grain size and a large amount of residual austenite. After laser melting, the hardness reaches 1.4 times the hardness of the matrix. The laser surface texture increases lubrication significantly at low rpm. The fully fusion-coagulated treatment is wear-resistant in a variety of different frictional wear environments.