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本文介绍了热刚粘塑性有限元耦合程序的分析技术及其在环坯扩挤复合成形过程中的应用，给出了环坯复合成形控制工艺设计实例。
In this paper, the analysis technique of coupled thermo-viscoplastic finite element program and its application in compound extrusion of ring blanks are introduced, and a design example of the process of composite control of blanks is presented.