| 新淬火状态硬铝合金板的成形性能及数值模拟 |
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| 引用本文： | 高宏志,周贤宾.新淬火状态硬铝合金板的成形性能及数值模拟[J].航空材料学报,2008,28(5). |
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| 作者姓名： | 高宏志 周贤宾 |
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| 作者单位： | 北京航空航天大学,机械工程及自动化学院,北京,100083 |
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| 基金项目： | 国家自然科学基金，教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 研究了铝合金退火状态和新淬火状态下的成形性能,给出了主要成形性能指标与自然时效及预变形的关系,表明在新淬火状态一定时间内,铝合金仍然具有良好的成形性能,淬火前的变形和淬火后的时效过程将降低成形性能;通过退火状态和新淬火状态材料成形的数值模拟对比,表明新淬火状态材料成形具有以下特点:新淬火状态材料成形需要更大的力能参数,残余应力和回弹较大,成形后变薄较小,厚度分布较均匀,随着时效时间增加和淬火前变形的增加,成形力、厚度变薄和回弹增大.
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| 关 键 词： | 变形铝合金 板料成形 成形性能 固溶热处理 自然时效 数值模拟 |
Formability and Numerical Simulation for as-quenched Aluminum Alloy Sheet |
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| GAO Hong-zhi,ZHOU Xian-bin.Formability and Numerical Simulation for as-quenched Aluminum Alloy Sheet[J].Journal of Aeronautical Materials,2008,28(5). |
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| Authors: | GAO Hong-zhi ZHOU Xian-bin |
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| Institution: | GAO Hong-zhi,ZHOU Xian-bin(School of Mechanical Engineering , Automation,Beijing University of Aeronautics , Astronautics,Beijing 100083,China) |
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| Abstract: | The influence of heat treatment on formability of aluminum alloy sheet could not be ignored and the fact that formability of as-quenched aluminum alloy sheet is not well understood has obstructed the improvement of forming process and the application of numerical simulation.Based on the practical forming process of 2D12 aluminum alloy,some experiments were conducted to investigate the influence of pre-stretching before heat treatment and age hardening time on the behavior and formability of 2D12 aluminum al... |
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| Keywords: | aluminum alloy sheet metal forming formability heat treatment quenching ageing numerical simulation |
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