Cryogenic die-less spinning was proposed to address wrinkling and cracking, which occur in traditional spinning, to form large thin-walled curved components. A finite element model for this technique was developed, and die-less spinning at room temperature (RT) and cryogenic temperature (CT) was conducted to determine its feasibility. The wall thickness and the hardness of the components were then measured, and the microstructure evolution was observed to evaluate the forming accuracy and quality of the components. The component could be formed entirely (with a height of 45 mm) at cryogenic temperature feeding in a single pass, but the component formed at room temperature was broken with a height of 17.2 mm. In addition, the component formed via a single-pass feed path had a large stress concentration area and poor wall thickness accuracy. Results indicate that cryogenic temperature and multi-pass feed path could improve the formability of the component. Owing to the suppression of dynamic recovery at cryogenic temperature, smaller substructures were formed, and more dislocations accumulated in the grain, causing a higher level of work hardening of the alloy. The dislocation density of the components formed via a single-pass feed path at CT, multi-pass feed path at CT, and multi-pass feed path at RT were 3.40 × 1013, 2.62 × 1013, and 1.97 × 1013, respectively. The plasticity of the alloy was significantly improved at cryogenic temperatures because of the increased critical dislocation density and the improved work hardening ability.