Experimental Study on Ultrasonic Milling Textures for Collaborative Wear

The objective of this study is to unveil the fundamental influence laws governing the friction and wear behavior variations exerted by the surface microtexture formed through longitudinal‐torsional ultrasonic milling (L‐TUM) of titanium alloy. Based on the motion characteristics of ultrasonic milling, single‐factor ultrasonic end milling experiments were conducted under various operating conditions to analyze the effects of different parameters on surface topography. Subsequently, friction and wear experiments were conducted on the textured surface to analyze its friction properties and wear behavior. The results show that under the L‐TUM processing method, a uniform and regular surface texture can be obtained. Through conducting friction and wear experiments on the processed surfaces and conducting comparative analysis, it was found that the average friction coefficient could be reduced by up to 41.6%. Simultaneously, analysis of wear behavior on textured surfaces revealed that wear volume prediction can be achieved through decomposition. This not only elucidates the friction‐reducing mechanism of surface microtextures but also provides crucial theoretical support for the functionalization of high‐performance titanium alloy surfaces. Furthermore, it offers new insights for further investigation into the wear mechanisms of textured surfaces.