The rigid-visco-plastic finite element model of hot forming process for empennage epedestal was established.Two forming processes were simulated and analyzed by 3D FEM.

• 建立了尾翼支座成形工艺的刚粘塑性有限元模型,采用三维有限元法对该零件两种成形工艺进行了模拟分析,确定合理的成形工艺。