Article
Chemistry, Physical
Ricardo Santamaria, Mobin Salasi, William D. A. Rickard, Kod Pojtanabuntoeng, Garry Leadbeater, Mariano Iannuzzi, Steven M. Reddy, Md Zakaria Quadir
Summary: There is a growing interest in using selective laser melting (SLM) for metal additive manufacturing. However, our understanding of SLM-printed stainless steel is limited due to complex process variables. This study found discrepancies in crystallographic textures and microstructures compared to previous literature. The as-printed material showed macroscopic asymmetry in structure and crystallographic texture, with specific low-angle boundary features being identified as non-crystallographic.
Review
Chemistry, Multidisciplinary
Mia Carrola, Amir Asadi, Han Zhang, Dimitrios G. Papageorgiou, Emiliano Bilotti, Hilmar Koerner
Summary: The combination of nanomaterials and additive manufacturing can bring impressive properties, but achieving cooperative synergistic effects and novel material properties requires deeper research. By studying the cooperative effects at processing, morphological, and architectural levels, material performance can be improved, emerging properties explored, and the additive manufacturing process enhanced.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Engineering, Manufacturing
Zahra Lotfizarei, Amir Mostafapour, Ahmed Barari, Alireza Jalili, Albert E. Patterson
Summary: Material extrusion additive manufacturing (MEAM) is a common process for building solid geometry using selective extrusion of molten material. One emerging process within this group is powder material extrusion (PME), which extrudes feedstock consisting of metal or ceramic powder suspended in a thermoplastic matrix. PME offers low cost, simple equipment, and lack of industrial hazards and residual stresses.
ADDITIVE MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Olivier Miclette, Raphael Cote, Vincent Demers, Vladimir Brailovski
Summary: In recent years, there has been a growing interest in the material extrusion additive manufacturing of highly-filled polymers. Conventional polymer 3D printers can be easily adapted for use with metal powder-filled polymer filaments, making them cost-effective and readily available. However, fabricating these materials is time-consuming and their formulations differ from regular metal injection molding feedstocks. On the other hand, other types of material extrusion additive manufacturing printers, such as screw- and piston-based ones, can use available metal injection molding feedstocks and apply optimized debinding and sintering procedures. This study presents the development of a novel ram extruder-based printer and the optimization of the printing process using low-viscosity metal injection molding feedstocks.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
O. Dolev, S. Osovski, A. Shirizly
Summary: The tensile behavior and fracture toughness of a hybrid Ti-6Al-4V alloy were examined, showing good properties without a preference for crack growth. The hybrid manufacturing approach studied here expands the current limitations of large-scale critical components and allows for higher throughput.
ADDITIVE MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Premesh Shehan Lowe, Xiaoying Honey, John Crossley, Keshanka Karunaratne, Chathura Kannangara, Steven Jones
Summary: Directed-energy deposition is a 3D printing method that utilizes a focused energy source to melt and deposit materials. The use of high-intensity ultrasonic waves has been found to assist in controlling the solidification process, improving grain structure refinement, and reducing anomalies. The configuration of ultrasonic waves can also be adjusted to facilitate scalability.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Engineering, Multidisciplinary
Murad Ali, Fahad Alam, Yap Fook Fah, Oleg Shiryayev, Nader Vahdati, Haider Butt
Summary: The traditional manufacturing processes for optical sensors have limitations, but 3D printing offers a new way to create optical devices with added functionalities like spectral color variation in lenses. By optimizing DLP 3D printing parameters and mixing thermochromic pigment powders in resins, customized tinted Fresnel lenses can be fabricated for selective color focusing and temperature sensing applications. The surface wettability of the lenses can be determined through contact angle measurements, showing the potential for custom-built optical devices with active and passive sensing capabilities.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Nectarios Vidakis, Markos Petousis, Nikolaos Mountakis, Vassilis Papadakis, Chrysa Charou, Vasilis Rousos, Pavlos Bastas
Summary: The demand for functional filaments made of bio-sourced, biocompatible, biodegradable, and/or recyclable polymers and composites for 3D printing is increasing in the industry. This study focused on the reinforcement of polylactic acid (PLA) filament with glass fillers in different forms. Various concentrations of glass in powder, beads, and flake forms were used to optimize the composite filaments. The mechanical response of the composites was evaluated through thermogravimetric analysis, Raman spectroscopy, and 3D printing of specimens for testing.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Analytical
Han Zhang, Long Huang, Mingyue Tan, Shaoqing Zhao, Hua Liu, Zifeng Lu, Jinhuan Li, Zhongzhu Liang
Summary: Researchers are looking for more innovative 3D printing technologies for glass fabrication, which provides a good solution to the complex traditional glass manufacturing process. However, the application of 3D printing in glass fabrication is still in its infancy and faces many challenges.
Article
Engineering, Chemical
Korinde A. van den Heuvel, Myrthe T. W. de Wit, Bastiaan H. J. Dickhoff
Summary: Understanding the relationship between powder blend characteristics and tablet characteristics is crucial for obtaining 3D powder bed printed tablets that meet pharmaceutical specifications. This study focused on the impact of different particle size distributions on key material attributes such as wettability, consolidation, and flowability. Optimizing the base formulation and print settings concurrently is essential for successfully formulating hydrophilic/hydrophobic APIs into 3D printed tablets.
Article
Engineering, Industrial
Wessel W. Wits, Emiel Amsterdam
Summary: In laser powder bed fusion, multi-material mixing and elemental diffusion were studied for the fabrication of functionally graded structures. An adapted recoater was used to deposit powder from multiple sources, creating a more gradual material transition. Homogenization heat treatment enhanced elemental diffusion, resulting in a gradual material transition without a distinct interface.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Xiang Ang, Jing Yuen Tey, Wei Hong Yeo, Katrina Pui Yee Shak
Summary: Ink-based printing or direct ink writing (DIW) is a method that deposits ink-based material layer by layer to form a 3D article, and it can be used to 3D print metal and ceramic materials when combined with metallurgy processing. This review focuses on the latest progress in metallic and ceramic materials through DIW, including printability based on ink blends and properties, as well as parametric analysis. Ink printability, determined by ink flow and extruded shape maintenance, is crucial for DIW success. Different ink compositions and printing parameters play important roles in achieving optimal printing results.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Chemistry, Multidisciplinary
N. Alinejadian, S. H. Kazemi, M. Grossberg-Kuusk, L. Kollo, I. Odnevall, K. G. Prashanth
Summary: This study demonstrates that the addition of 2% by weight of MoS2 to Mo feedstock significantly improves crack mitigation in Mo-based micro-lattice structures produced by selective laser melting. The enhanced crack inhibition is attributed to the formation of Mo2S3, reduced lattice strain, and decreased residual stresses. The addition of MoS2 hinders stress corrosion cracking and surface oxidation cracking, as confirmed by increased polarization resistance. However, it also leads to increased corrosion current density and occurrence of different types of corrosion. The strategy of adding MoS2 to Mo feedstock enables the fabrication of high-temperature micro-lattice components with improved corrosion resistance properties.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Physical
Lukasz Zrodowski, Rafal Wroblewski, Tomasz Choma, Bartosz Moronczyk, Mateusz Ostrysz, Marcin Leonowicz, Wojciech Lacisz, Piotr Blyskun, Jan S. Wrobel, Grzegorz Cieslak, Bartlomiej Wysocki, Cezary Zrodowski, Karolina Pomian
Summary: The newly developed ultrasonic atomization method shows great promise in producing powders suitable for additive manufacturing, with highly spherical particles produced through electric arc melting and standing wave vibrations. This method has the potential to be a valuable tool for material scientists in developing powders with tailored chemical composition, size, and structure.
Article
Materials Science, Composites
Arit Das, Martin Etemadi, Bradley A. Davis, Steven H. McKnight, Christopher B. Williams, Scott W. Case, Michael J. Bortner
Summary: This study investigates the impact of adding short fibers or continuous fibers to filament fusion materials on the properties of the resulting parts. Through detailed crystallization analysis and rheological characterizations, improvements in the fiber-reinforced system were observed. The experiment also found that layer thickness is a key parameter affecting the tensile properties of printed parts.
POLYMER COMPOSITES
(2021)
Article
Engineering, Industrial
Chao Wei, Lin Li, Xiaoji Zhang, Yuan-Hui Chueh
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2018)
Article
Engineering, Manufacturing
Chao Wei, Yuan-Hui Chueh, Xiaoji Zhang, Yihe Huang, Qian Chen, Lin Li
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2019)
Article
Engineering, Manufacturing
Chao Wei, Heng Gu, Zhe Sun, Dongxu Cheng, Yuan-Hui Chueh, Xiaoji Zhang, Yihe Huang, Lin Li
ADDITIVE MANUFACTURING
(2019)
Article
Engineering, Manufacturing
Yuan-Hui Chueh, Xiaoji Zhang, Chao Wei, Zhe Sun, Lin Li
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2020)
Article
Engineering, Manufacturing
Yuan-Hui Chueh, Chao Wei, Xiaoji Zhang, Lin Li
ADDITIVE MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Xiaoji Zhang, Yuan-hui Chueh, Chao Wei, Zhe Sun, Jiwang Yan, Lin Li
ADDITIVE MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Chao Wei, Heng Gu, Xiaoji Zhang, Yuan-hui Chueh, Lin Li
ADDITIVE MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Zhe Sun, Yuan-Hui Chueh, Lin Li
ADDITIVE MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Chao Wei, Heng Gu, Qian Li, Zhe Sun, Yuan-hui Chueh, Zhu Liu, Lin Li
Summary: This study aims to investigate the influence of laser volume energy density (VED) and material composition ratio on the melting status of laser-processed powder layers. Experimental results show that the VED required to melt high melting point Invar36 alone is insufficient to melt the Invar36/Cu10Sn mixture, mainly due to the lower laser beam absorptivity, higher thermal conductivity, and lower melting temperature of Cu10Sn copper alloy.
ADDITIVE MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Yuan-Hui Chueh, Xiaoji Zhang, Jack Chun-Ren Ke, Qian Li, Chao Wei, Lin Li
ADDITIVE MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Dongxu Cheng, Chao Wei, Yihe Huang, Zhizhou Zhang, Dong Wang, Zekun Liu, Mathew Newman, Tianlei Ma, Yuan-Hui Chueh, Xiaoji Zhang, Zhu Liu, Lin Li
Summary: This study demonstrates the feasibility and characteristics of additively manufactured glass-ceramic/metal 3D electronic components using multiple material laser powder bed fusion. The integration of glass-ceramic and metallic materials enables the development of high-performance functional components for high temperature applications. The printed components show high relative density and successful embedded conductive structures.
ADDITIVE MANUFACTURING
(2022)
