Computer-aided site-specifc control of 3D printed metals

• 主要作者: Ong, Joseph Jia Jie
• 其他作者: Matteo Seita
• 格式: Final Year Project
• 語言: English
• 出版: Nanyang Technological University 2021
• 主題: Engineering::Materials
• 在線閱讀: https://hdl.handle.net/10356/147657

Conventionally, additive manufacturing (AM) methods such as Direct Energy Deposition (DED) and Laser Powder Bed Fusion (LPBF) has been mainly adopted to produce complex designs. In recent times, site-specific AM properties can be produced by adopting a bidirectional scanning strategy to produce near-perfect single crystals through epitaxial grain growth. In this study, various site-specific dogbone models’ mechanical behaviour is observed using finite element analysis. The effects on von-Mises stress concentrations at various equivalent plastic strain (PEEQ) levels were analysed by experimenting with various geometric designs and texture orientation. Simulation results demonstrated that site-specific AM textures' tensile strength has a strong dependency on the orientation of textures to the applied load.