Study on Surface Integrity and Surface Roughness Model of Titanium Alloy TC21 Milling Considering Tool Vibration

Due to its excellent strength, plasticity, and fracture toughness, titanium alloy has been widely used in the aerospace field. The specificity of application environment places high demands on surface quality alloy. In this paper, we study effects different lubrication methods microscopic topography, roughness, microhardness TC21 during milling process. include dry, high-pressure air cooling, minimum quantity (MQL). Compared with dry cooling conditions, MQL can effectively suppress plastic deformation defects TC21. is significant for improving process addition, a roughness model considering vibration developed. According results orthogonal experiments, prediction accuracy acceptable, errors are all below 20%.