关键词: 环形零件;辗扩工艺;研究现状;发展趋势;短流程

Abstract: Rolling forming process of ring parts is an advanced partial loading and continuous forming technology. Unsteady and nonlinear plastic forming occurs at the deformation zone during ring rolling under high temperature and load. For obtaining the deformation mechanics of the materials in ring rolling and promoting the improvement, perfect and application of this process, theoretical analysis, numerical simulation and experiments have been used to research the ring rolling process, process parameters and their effect rules on the microstructure and property of materials. The research status on this advanced forming technology is discussed. The developing trends on the theoretical and experimental study of rolling forming process, the numerical simulation of microstructure evolution in the process and the integrated regulation of forming and performance in rolling process are analyzed. Aiming at disadvantages such as longer production process, more energy consuming and wasting materials, the new cast-rolling forming technology of ring parts is put forward. The key scientific issues and application prospect of the new short process are investigated.

Key words: ring-shaped parts;rolling forming process;research status;developing trends;short process