<p>To address the issues of poor forming quality and surface damage in the shear spinning of TA1 titanium alloy curvilinear generatrix components, this study investigates the influence of mandrel speed on the evolution of stress-strain, wall thickness distribution, and friction-wear behavior. Based on dynamic contact relationships, a finite element model is established using Abaqus/Explicit and validated through spinning experiments. Friction-wear tests are conducted to analyze the surface damage mechanisms. The results show that mandrel speed significantly affects the residual stress distribution by regulating the strain rate and frictional heat. At a mandrel speed of 600 r/min, the residual stress is the most uniform and the three-directional spinning forces are relatively low. At 1200 r/min, strain-rate hardening dominates, leading to a marked stress concentration at the tail end. Regarding wall thickness, the middle section (primary shear zone) exhibits the minimum thickness, while the tail end is thickened due to material accumulation. As mandrel speed increases, the wall thickness in the middle section decreases and stabilizes after 900 r/min. The wear mechanism shows a systematic evolution: at 300 and 600 r/min, abrasive wear dominates; at 900 r/min, the increased heat input promotes the formation of a hard and brittle TiN layer, leading to a composite mode of brittle spallation and abrasive wear, with a peak wear volume of 13.5 × 10⁻² mm³; at 1200 r/min, overheating induces matrix softening, shifting the wear mechanism to abrasive wear dominated by plastic plowing.</p>