Guo Yueling, Di Xinglong, Liu Changmeng
School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
EXTENDED ABSTRACT: To shorten the time and reduce cost for developing new materials and structures in such fields like aerospace, we have developed a high-throughput additive manufacturing technology, guided by the cutting-edge scientific issues of the integrated design of equipment, materials, structures, and functions. Based on the rapid optimization of high-throughput additive manufacturing process, we have proposed the mechanical performance improvement approach for metallic materials via ultra-fined microstructure, fully eutectic phase formation, and regularization of eutectic morphology. New niobium-, aluminum-, and magnesium-based alloys have been developed accordingly, with improved mechanical property and oxidation resistance relative to conventional cast counterparts. Via nano-modification and low-frequency pulse processing, the unfavorable porosity defects of additive manufactured aluminum alloys are eliminated, and the mechanical properties are significantly enhanced. A support-free additive manufacturing technology is developed for fabricating large thin-wall complex components, and the geometrically self-constrained forming mechanism is clarified. We have developed the "multi-wire + multi arc" additive manufacturing equipment with an intelligent control system. Refractory high entropy alloys are efficiently designed and fabricated via high-throughput ultra-short additive manufacturing. The high-throughput material design, process optimization and in-situ manufacturing of components are achieved.
Keywords: Additive Manufacturing; High-throughput Manufacturing; High-performance Manufacturing; Extreme Manufacturing; Mechanical properties
Dr. Guo Yueling is an associate professor at the School of Mechanical Engineering, Beijing Institute of Technology. He graduated from Beihang University in 2018 with a Ph.D., and then conducted the joint doctoral research at the Max-Planck-Institut fl由Eisenforschung GmbH in Germany from 2017 to 2018. He was awarded as "Excellent Doctoral Thesis" by Beihang University and "Excellent Master's Thesis" by University of Science and Technology Beijing, respectively. His main research interests include Intelligent Multi-wire and Multi-arc Additive Manufacturing equipment, Microstructure and Mechanical properties of light alloys via wirearc additive manufacturing, ultra-short in-situ additive manufacturing of composition-complex materials/structures. The research results have been engineering-applied in aerospace and other fields. He has published 39 papers in the renowned engineering-related journals, such as Virtual and Physical Prototyping, Corrosion Science, Acta Metallurgica Sinica etc., and applied for more than 10 Chinese invention patents. He presides over National Defense Basic Research project/sub-project, National Natural Science Foundation of China, and JCJQ Sub-project. He serves on the Members of Committee of Materials Institution of Chinese Mechanical Engineering Society, Fusion Welding Process and Equipment Technical Committee of Chinese Mechanical Engineering Society, Non-Traditional Machining Technical Committee of China Ordnance Society and Young Editorial Boards of journals such as Additive Manufacturing Frontiers, as well as reviewers of several SCI and EI journals.