Tribological characteristics of a cemented carbide friction surface with chevron pattern micro-texture based on different texture density

The influence of the drawing area on the tribological properties was studied using femtosecond laser processing of four kinds of chevron pockets of cemented carbides with 5.05%, 9.5%, 13.02%, and 15.2% texture density. The results show that the chevron pattern texture with a certain texture density helps decrease the friction of a YT15 cemented carbide surface compared with un-textured specimens. This surface texture minimizes and stabilizes the friction coefficient, while the fluid dynamic pressure increased in the specimen with 9.5% texture density. Wear occurs due to abrasive and adhesive wear. Therefore, designing a reasonable shape and selecting appropriate texture density will be the focus of further research on surface micro-texture.