(1. 有研科技集團有限公司有色金屬材料制備加工國家重點實驗室，北京100088；
2. 有研工程技術研究院有限公司，北京101407；3. 北京有色金屬研究總院，北京100088)
摘 要: 為獲得理想性能，航空鋁合金厚板在生產(chǎn)過程中需經(jīng)歷軋制、固溶淬火、預拉伸和時效強化等工藝過程。其中，厚板在進行固溶淬火處理時整體溫度變化異常劇烈，內(nèi)部產(chǎn)生較高殘余應力。近年來，借助數(shù)值模擬的手段分析鋁合金厚板內(nèi)部固溶淬火殘余應力分布狀態(tài)并對其進行消減處理是研究關注的熱點。介紹基于有限元方法的7xxx系航空鋁合金厚板固溶淬火及預拉伸處理過程中板材內(nèi)部殘余應力演化規(guī)律研究現(xiàn)狀，對固溶淬火和預拉伸仿真計算過程中所用方法及模型參數(shù)進行歸納，展望該領域未來的重點研究內(nèi)容和發(fā)展方向。
關鍵字: 航空鋁合金厚板；固溶淬火；預拉伸；殘余應力；有限元模擬
（1. State Key Laboratory of Nonferrous Metals and Processes, GRINM Group Co., LTD., Beijing 100088, China;
2. GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China;
3. General Research Institute for Nonferrous Metals, Beijing 100088, China）
Abstract:In order to obtain desired mechanical properties, rolling, solution, quenching, pre-stretching and age-hardening treatments were applied to produce aluminum alloy thick plates. Among the aforementioned processes, the temperature in the whole thick plate will be severely changed during the quenching process. Simultaneously, high residual stress also can be formed in the plate. In recent years, numerical simulation has been treated as an effectively method to study and predict the development, distribution and evolvement behavior of residual stress in the thick plate during quenching and pre-stretching processes. The research situation on the evolvement of residual stress in the thick aluminum plate during quenching and pre-stretching processes based on the FEM simulation method was reviewed. The usage of relative skills and parameters for the models were also concluded. Moreover, the key research content and develop orientations in this filed were prospected at the summary chapter of this article.
Key words: aviation aluminum alloy thick plate; solution and quenching; pre-stretching; residual stress; FEM
