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| 铝合金板料电磁成形工艺与理论的研究进展 |
| Research Development of Electromagnetic Forming Process and Theory of Aluminium Alloy Sheet |
| Received:March 29, 2021 |
| DOI：10.3969/j.issn.1674-6457.2021.05.003 |
| 中文关键词: 铝合金板料 电磁成形 数值模拟 本构模型 成形性能 微观组织 |
| 英文关键词: aluminum alloy sheet electromagnetic forming numerical simulation constitutive model formability microstructure |
| 基金项目:国家自然科学基金(52005374);湖北省自然科学基金(2019CFB196) |
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| 中文摘要: |
| 将电磁成形与现有板料成形工艺相结合，能够有效拓宽电磁成形应用领域，可为汽车、航空、航天等高端装备中铝合金零件高性能精确成形带来新的突破。主要综述了电磁复合成形工艺、多物理场耦合数值模拟与本构建模、铝合金板料电磁成形性能与组织演变等3个方面的研究进展，并结合笔者的研究工作对电磁成形工艺与理论研究中存在的问题进行了简要分析。着重综述了以电磁辅助冲压与电磁渐进成形为典型代表的电磁复合成形工艺，阐述了电磁成形过程多物理场耦合数值模拟分析方法，介绍了基于管材电磁成形或板材电磁胀形实验的高应变速率本构模型参数逆向识别方法，为电磁成形数值分析提供必要的材料模型。阐明了电磁成形能够有效提高铝合金板料成形性能，并揭示了多物理场耦合作用下铝合金板塑性变形机理与组织性能演变规律，为电磁成形工艺研究打下重要理论基础。最后，对铝合金板料电磁成形工艺与理论的研究进展进行了总结，并对其发展前景和研究方向进行了展望。 |
| 英文摘要: |
| The electromagnetic forming and the available sheet metal forming process were combined to effectively broaden the application fields of electromagnetic forming. It can bring about new breakthrough for high performance precision forming of aluminum alloy part for the high-end equipment of automotive and aerospace. The electromagnetic hybrid forming processes, multi-physical fields coupling numerical simulation and constitutive modelling, electromagnetic formability and microstructure evolution of aluminum alloy sheet were mainly reviewed in this paper. Combined with the authors’ research work, the existing problems of electromagnetic forming process and theory were briefly analyzed. The typical electromagnetic hybrid forming processes of electromagnetically assisted stamping and electromagnetic incremental forming were focused on. The multi-physical fields coupling numerical simulation and analysis methods were presented for electromagnetic forming process. On the basis of the electromagnetic forming of tube or electromagnetic bulging experiment of sheet metal, the parameter inverse identification methods of high strain-rate constitutive models were introduced to provide the required material models for numerical analysis of electromagnetic forming. It was clarified that electromagnetic forming can improve the formability of aluminum alloy sheet. The plastic deformation mechanism and microstructure evolution laws under the coupling effects of multi-physical fields were revealed to lay important theoretical foundation for the research on electromagnetic forming processes. Finally, the electromagnetic forming process and theory of aluminum alloy sheet were concluded. The development prospects and research interests were expected. |
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