-1，預鍛尺寸985/610/475 mm，模具溫度280 ℃）。各參數(shù)對模擬結果的重要性順序如下：變形溫度>應變速率>坯料形狀>>模具溫度。使用最佳參數(shù)組合獲得的實驗結果與數(shù)值模擬結果吻合較好，表明該方法可以避免大量實驗和數(shù)值模擬工作量，有效地控制超大型鍛件的載荷和微觀組織。;The forging load of super large turbine disc with a diameter over 2 m may approach or even surpass the limit of 800 MN of the largest press machine in China, which is the extreme manufacturing. Thus, maintaining good mechanical properties and controlling forging load are two key factors during the forging process of super large turbine disc. 25 groups of forging parameters was designed based on Taguchi method. The multi-objective optimization of finite element method simulation results was conducted by SNR and ANOVA methods. Results show that the most uniform and refined recrystallization microstructures are obtained under optimal forging load. The optimal combination of process parameters is determined under extreme manufacturing condition: temperature=1120 °C, strain rate=0.06 s-1, pre-forging size=985/610/475 mm, and die temperature=280 °C. The order of importance of each parameter to the simulation results is as follows: temperature>strain rate>billet shape>>die temperature. The experimental results obtained under the optimal parameters combination show good agreement with the simulated results, which demonstrates that this approach may be used to manage the load and microstructure of super large forgings while avoiding a significant number of experiments and numerical simulations."/>