Research on Advanced Metal Additive Manufacturing

点击翻译按钮获取中文摘要

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.