Provided is a method for controlling the integration of hot power spinning forming/performance of a cylindrical part based on a hot processing map. The method comprises: during the process of thermoplastic forming of metals difficult to deform, conducting a test on the high temperature mechanical performance of a metal material at a temperature at which dynamic recrystallization occurs, and in a strain rate range; based on the dissipation of the power, and determination criteria of flow instability during the process of thermoplastic forming, on the basis that a flow stress-strain relationship is obtained from the high temperature mechanical performance test, respectively constructing power dissipation maps and flow instability maps under different strains; combining the power dissipation maps and the flow instability maps to obtain a material hot processing map; according to the distribution of power dissipation rate factors η, and the flow instability criteria, obtaining, by means of analysis, forming conditions with relatively large power dissipation rate factors η and favourable for thermoplastic forming under potential dangerous forming conditions and safe forming conditions meeting the flow instability criteria; and finally, according to a temperature and a strain rate obtained by means of the hot processing map and favourable for thermoplastic forming of a material, carrying out hot power spinning forming on a cylindrical part.
展开▼
