Research on the Friction and Wear Characteristics of Textured Tool Surface and the Mechanism of Reducing Friction and Wear
Designing and machining a certain microstructure on the surface of the cutting tool can significantly improve the friction state between the cutting tool and chip surface.In order to explore the friction and wear characteristics of different texture cutting tools under dry friction conditions,finite element simulation analysis software ABAQUS was used to analyze different texture types of cutting tools,and the influence of various textures on friction reduction and wear resistance was analyzed based on the stress distribution of the cutting tools.At the same time,femtosecond lasers was used to process different types of textures on the surface of cutting tools and fric-tion and wear experiments were conducted with titanium alloy grinding balls,their friction coefficients were measured,and the wear situ-ation and morphology of different types of textured cutting tool surfaces were analyzed.The simulation and experimental results indicate that the T1 tool stress concentration zone is widely distributed and the stress concentration is severe;compared to the T1,the equivalent stress values of T2,T3,T4,and T5 types significantly decrease,and the stress distribution is relatively uniform,with T4 tool having the lowest surface equivalent stress value and the best cooling effect.The above results indicate that the friction coefficient of tools with dif-ferent types of textures is reduced to varying degrees compared to nontextured tools,which alleviates the adhesive wear on the tool sur-face to some extent.Among them,T4 tool has the most significant reduction in friction coefficient and the most prominent friction reduc-tion effect.
textured toolfriction and wear characteristicsfriction reduction and wear resistance mechanism
万方数据
维普
