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| 数值模拟技术在微成形研究中的应用 |
| Application of Numerical Simulation Technology in Microforming Research |
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| DOI：10.3969/j.issn.1674-6457.2023.07.004 |
| 中文关键词: 微成形 数值模拟 尺寸效应 变形机制 金属成形 |
| 英文关键词: microforming numerical simulations size effect deformation mechanism metal forming |
| 基金项目:国家自然科学基金（52075329） |
| Author Name | Affiliation | | GAO Chen-xin | School of Materials Science and Engineering, Institute of Forming Technology & Equipment, Shanghai Jiao Tong University, Shanghai 200240, China | | XU Shuai | School of Materials Science and Engineering, Institute of Forming Technology & Equipment, Shanghai Jiao Tong University, Shanghai 200240, China | | FENG Ni-jing | Education Center of MBA/MEM, Chongqing Jiaotong University, Chongqing 400074, China | | ZHANG Hai-ming | School of Materials Science and Engineering, Institute of Forming Technology & Equipment, Shanghai Jiao Tong University, Shanghai 200240, China |
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| 中文摘要: |
| 微成形技术具备高生产效率、高材料利用率和优异的成形质量，是一种极具发展前景的高精度加工技术。数值模拟技术作为一种先进的研究手段，可以在塑性加工中对材料的变形和工艺可行性等进行评估和预测，达到节约生产成本、缩短研发周期的作用。主要综述了数值模拟技术在微成形研究中的典型应用。介绍了数值模拟技术在研究材料性质和材料变形方面的应用，包括利用Voronoi方法和晶体塑性方法建立金属多晶体模型，研究了微成形过程中材料的变形机制和尺寸效应，建立了材料摩擦函数、构建了零件粗糙表面，研究了微成形过程中的摩擦行为；将晶粒大小、晶体取向与板料模型相关联，研究了微成形过程中薄板的回弹行为和成形极限。除此之外，也介绍了近年来微成形领域的许多新成形技术，如激光辅助微成形、水射流增量微成形、超声辅助微成形，以及数值模拟方法在这些新微成形技术方面的应用。最后，总结了数值模拟技术在微成形研究中所起的作用，并展望了该领域的未来发展趋势。 |
| 英文摘要: |
| Because of its high production efficiency, high material utilization rate and excellent forming quality, microforming technology becomes a high-precision machining technology with great development prospects. As an advanced research tool, numerical simulation technology can realize the evaluation and prediction of material deformation and process feasibility in plastic processing, and achieve the effect of saving production cost and shortening research and development cycle. The typical applications of numerical simulation technologies in microforming research were mainly reviewed. The application of numerical simulation technology in the research of material properties and deformation was introduced, including establishing metal polycrystal models with Voronoi method and crystal plasticity method. The deformation mechanism and size effect of materials during microforming were studied. The material friction functions were constructed and the rough surfaces of parts were built to study the friction behavior during microforming. The grain size and crystal orientation were correlated with sheet models to study the springback behavior and forming limit of thin sheet in microforming. In addition, many new forming technologies in the field of microforming in recent years, such as laser assisted microforming, water jet incremental microforming, ultrasonic assisted microforming, and the application of numerical simulation methods in these new microforming technologies were also introduced. Finally, the role of numerical simulation technology in microforming research was summarized, and the future development trend in this field was also prospected. |
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