关于金属基增材制造工艺中的多尺度运输现象的审查
Miao Liu1,2, Zhongqiu Liu1,2, Baokuan Li2
1Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Northeastern University, Shenyang, China.
3D printing and additive manufacturing
|October 3, 2024
概括
数字模拟通过预测缺陷形成来帮助基于金属的增材制造 (MAM). 本次审查涵盖了物理和数据驱动的模型,以改善航空航天和生物医学中的工艺控制和缺陷避免.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 计算科学 计算科学
背景情况:
- 基于金属的增材制造 (MAM) 提供了高度的设计自由,但由于复杂的工艺参数,在实验性缺陷分析中面临挑战.
- 数字模拟对于理解多物理现象和预测MAM中缺陷演变至关重要.
- 现有的研究缺乏对MAM缺陷预测的数值模拟方法的全面审查.
研究的目的:
- 审查现有的MAM方法和基本现象.
- 基于规模 (单尺度和多尺度模型) 的数值模拟方法进行分类和分析.
- 探索数据驱动模型的潜力,作为MAM中物理驱动模型的补充.
主要方法:
- 审查关于MAM过程和缺陷形成的现有文献.
- 数字模拟方法的分类基于规模的三个类别.
- 讨论MAM的先进多尺度模型和数据驱动模型.
- 分析不同数值方法的预测目标,优点和弱点.
主要成果:
- 数字模拟在预测MAM现象和缺陷方面提供了准确性和经济性.
- 单尺度和多尺度模型为不同层次的缺陷演变提供了洞察力.
- 数据驱动模型,利用物理和实验数据,为MAM模拟提供了一个新的视角.
- 高预测准确度和效率有助于更好地控制参数和避免缺陷.
结论:
- 数字模拟对于推进基于金属的增材制造至关重要.
- 多尺度和数据驱动型号显示出增强预测准确性和计算效率的前景.
- 本综述为未来对MAM的数值模拟研究提供了参考.
相关概念视频
01:21Fatigue
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
01:26Steel Manufacturing
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
01:24Structural Steel Products
Structural steel products are created within a structural mill. The process begins with a beam blank that is reheated and then fed through a series of rollers. These rollers progressively shape the metal into its final form. Adjusting the spacings between the rollers allows for the production of different sections with the same nominal dimensions.
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments are...
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments are...