Research on Advanced Metal Additive Manufacturing

先进金属增材制造研究

• 批准号: RGPIN-2021-03882
• 负责人: Elbestawi, Mohamed
• 金额: $ 4.01万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=760167
• 关键词: Research; Advanced; Metal; Additive; Manufacturing

The proposed research deals with developing a strong scientific basis for advanced applications of metal additive manufacturing, aimed at dealing with the increased demand for higher flexibility and efficiency of aerospace and automotive components in industrial manufacturing. The main research topics will include: 1. Multiple Material Additive Manufacturing (MMAM) This research will support the development of next-generation technologies and products aimed at significantly improving Additive Manufacturing (AM) by either optimizing the mechanical properties of the parts, enhancing the performance of AM parts, or providing additional functionality. Multiple material additive manufacturing (MMAM) represents a whole new paradigm and range of opportunities for design, functionality, and cost-effective high value products. MMAM can produce the part and its property variations in a single manufacturing operation instead of multiple steps. 2. Applications of Machine Learning for Defect Detection in L-PBF This research is aimed at significantly improving the performance, quality, and repeatability of metal additive manufacturing processes using artificial intelligence methods. One barrier that restrains metallic AM parts from reaching their true potential is the inconsistency in the quality of parts produced. In this research, in-situ monitoring system which will take the form of images, temperature readings, and acoustic signals will be used. 3. Additive Manufacturing of Graded Microstructures Titanium aluminides are a family of intermetallic compounds used for aircraft engines. As opposed to Ni-based superalloys, titanium aluminides provide significant advantages such as high strength, high stiffness, good creep, corrosion and oxidation resistance. These properties combined with low density can significantly reduce the structural weight of components. However, the key challenges in using titanium aluminides include low ductility and fracture toughness. This research will address this shortcoming by developing the concept of producing components with graded microstructures of titanium aluminides, which offer a unique opportunity to vary material properties within different sections of the component to satisfy specific functions.

拟议的研究涉及为金属增材制造的先进应用开发强大的科学基础，旨在应对工业制造中对航空航天和汽车零部件更高灵活性和效率的需求。主要研究课题包括：1.多材料增材制造（MMAM）这项研究将支持下一代技术和产品的开发，旨在通过优化零件的机械性能，增强增材制造零件的性能或提供额外的功能来显着改善增材制造（AM）。多材料增材制造（MMAM）代表了一种全新的模式和一系列设计，功能和成本效益高价值产品的机会。MMAM可以在单个制造操作而不是多个步骤中生产零件及其属性变化。2.机器学习在L-PBF缺陷检测中的应用本研究旨在使用人工智能方法显著提高金属增材制造工艺的性能、质量和可重复性。阻碍金属AM部件发挥其真正潜力的一个障碍是所生产部件的质量不一致。在本研究中，将使用图像、温度读数和声信号形式的现场监测系统。3.梯度微结构的增材制造钛铝化物是用于航空发动机的金属间化合物家族。与Ni基超合金相反，钛铝化物提供显著的优点，例如高强度、高刚度、良好的抗蠕变性、抗腐蚀性和抗氧化性。这些特性与低密度相结合，可以显著降低部件的结构重量。然而，使用钛铝化物的关键挑战包括低延展性和断裂韧性。这项研究将通过开发生产具有钛铝化物分级微观结构的组件的概念来解决这一缺点，这提供了一个独特的机会，可以在组件的不同部分内改变材料特性，以满足特定的功能。