COMPLICATIONS IN THE DESIGN AND FABRICATION OF TI6AL4V MICRO- LATTICE STRUCTURES FOR ADDITIVE MANUFACTURING
DOI:
https://doi.org/10.37628/ijn.v8i2.951Abstract
This research paper investigates several obstacles and concerns related to metal additive manufacturing (AM) components to improve the quality of the parts by recommending and implementing appropriate corrective measures. Titanium alloy cellular structures are in high demand for many uses, such as lightweight medical devices, aeroplanes, vehicles, and heat exchangers. This study investigates the manufacturability and performance of Ti6Al4V micro-lattice structures (MLSs) fabricated by Direct Metal Laser Sintering (DMLS). By repeatedly using a unit cell type with selfsupporting (e.g., Star, Tesseract, Cross, Octet) and non-self-supporting (e.g., X, Grid) kind properties, several lattice structures with varying relative densities and unit cell sizes have been produced. However, creating a metal MLS that is free of defects is challenging using the DMLS method. Consequently, this research investigates how lightweight Ti6Al4V MLSs may be designed and constructed with a defect-free lattice structure using the experimental setup of the DMLS techniqueReferences
Yan C. Hao L, Hussein A, Raymont D. Evaluations of cellular lattice structures manufactured using
selective laser melting. International Journal of Machine Tools andManufacture.2012;62:32-38.
https://doi.org/doi:10.1016/j.ijmachtools.2012.06.002
Li Yang, Ola Harrysson, Denis Cormier, Harvey West, Haijun Gong, Brent Stucker. Additive
Manufacturing of Metal Cellular Structures: Design and Fabrication. JOM. 2015; 67(3):608-615.
https://doi.org/doi:10.1007/s11837-015-1322-y
Heinl P, Müller L, Körner C, Singer RF, Müller FA. Cellular Ti- 6Al-4V structures with
interconnected macro porosity for bone implants fabricated by selective electron beam melting.
Acta Biomaterialia. 2008; 4(5):1536-1544. https://doi.org/doi:10.1016/j.actbio.2008.03.013
Duda T, Raghavan LV. 3D Metal Printing Technology. IFAC- Papers Online. 2016; 49(29):103-
https://doi.org/doi:10.1016/j.ifacol.2016.11.111
Hussein A, Hao L, Yan C, Everson R, Young P. Advanced lattice support structures for metal
additive manufacturing. Journal of Materials Processing Technology. 2013; 213(7):1019-1026.
https://doi.org/doi:10.1016/j.jmatprotec.2013.01.020
Khaing M, Fuh J, Lu L. Direct metal laser sintering for rapid tooling: Processing and
characterization of EOS parts. Journal of Materials Processing Technology. 2001; 113(1-3):269-
https://doi.org/doi:10.1016/S0924-0136(01)00584-2
Metal 3d printing with end-to-end support. https://www.rapiddmls.com.
CSIR-CSIO. Csio.res.in. Published 2023. Accessed April 5, 2023. https://www.csio.res.in/
Xiong J, Mines R, Ghosh R, Vaziri A, Ma L, Ohrndorf A, Christ HJ, Wu L. Advanced micro‐lattice
materials. Advanced Engineering Materials. 2015 Sep;17(9):1253-64.
Zhao Y, Wu Q, Wu L. Quasi-static compressive mechanical properties of multilayer micro-lattice
biomaterials for skull repair. Materials & Design. 2022 Aug 1;220:110871.
