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| Al-Cu-Mg-Zn超硬铝合金盘类构件塑性变形性能及锻造成形工艺的研究 |
| Plastic Deformation Properties and Forging Process of Al-Cu-Mg-Zn Ultra-Hard Aluminium Alloy Disc-Shaped Component |
| Received:July 12, 2021 |
| DOI：10.3969/j.issn.1674-6457.2022.02.016 |
| 中文关键词: 超硬铝合金 压缩实验 锻造成形 热加工图 盘类构件 |
| 英文关键词: ultra-hard aluminum alloy compression test forging processing map disc-shaped component |
| 基金项目:国家自然科学基金面上项目(51975071);国家工业和信息化部工业强基工程项目(TC180A3Y1/18);重庆英才计划(CQYC202005068) |
| Author Name | Affiliation | | DU Chong | Hunan Vanguard Group Co., Ltd., Changsha 410100, China | | WANG Ze-fei | Chongqing Key Laboratory of Advanced Mold Intelligent Manufacturing, Chongqing University, Chongqing 400044, China | | MENG Yi | Chongqing Key Laboratory of Advanced Mold Intelligent Manufacturing, Chongqing University, Chongqing 400044, China | | YANG Xin-quan | Hunan Vanguard Group Co., Ltd., Changsha 410100, China | | WANG Shi | Hunan Vanguard Group Co., Ltd., Changsha 410100, China |
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| 中文摘要: |
| 目的 为了有效改善Al-Cu-Mg-Zn超硬铝合金盘类锻造构件成形精度和力学性能。方法 通过对代号7A04的Al-Cu-Mg-Zn系超硬铝合金进行热压缩实验，分析其流变行为;通过应力-应变数据，建立本构方程及热加工图。将构建的7A04超硬铝合金材料模型导入有限元分析软件中，同时对锻件成形过程进行仿真模拟并优化。结果 获得了基于Arrhenius模型的流变应力本构方程;确定了7A04超硬铝合金最适宜的加工区域，为后续的仿真模拟提供指导;基于7A04超硬铝合金盘类构件锻造成形有限元仿真模拟分析结果，获得了变形均匀锻件的最优方案。结论 通过全尺寸锻造生产实验对模拟分析结果进行验证，获得了变形均匀且无锻造工艺缺陷的7A04超硬铝合金盘类构件。 |
| 英文摘要: |
| The work aims to effectively improve the geometric accuracy and mechanical properties of forged Al-Cu-Mg-Zn ultra-hard aluminum alloy disc-shaped component. The rheological behaviors of Al-Cu-Mg-Zn ultra-hard aluminum alloy named 7A04 were investigated by hot compression tests. The constitutive equation and processing maps were established according to stress-strain data. The established 7A04 ultra-hard aluminum alloy model was imported into simulation analysis software, and the forging process was simulated and optimized.The rheological stress-based equations based on the Arrhenius model were obtained and the most suitable processing area of 7A04 ultra-hard aluminum alloy was determined, which provided accurate guidance for subsequent simulation. According to the finite element simulation results of forged 7A04 ultra-hard aluminum disc-shaped component, the optimal solution for homogeneous plastic deformation of forged component was obtained. The simulation analysis results are verified by full-size forging production experiments, and the 7A04 ultra-hard aluminum alloy disc-shaped components with uniform deformation and no forging process defects are obtained. |
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