Article
Engineering, Mechanical
Asif Ur Rehman, Vincenzo M. Sglavo
Summary: This study focuses on using pure water as a binder in 3D printing construction, specifically with ordinary Portland cement (OPC) concrete. Different water-based binder formulations were tested for compatibility and their impact on geometric and mechanical properties, with findings showing delayed increase in mechanical strength when using water-polyvinyl alcohol (98:2 w/w) solution. Post-curing with water vapor was found to enhance structural hardness and reduce infilling porosity.
RAPID PROTOTYPING JOURNAL
(2022)
Article
Engineering, Industrial
Yiwei Mao, Jingwen Li, Wei Li, Daosheng Cai, Qingsong Wei
Summary: This study explored the use of a binder mainly consisting of A-stage phenolic resin for BJAM to manufacture high-strength green parts. By optimizing parameters, green samples can possess the desired mechanical strength and surface roughness, which are beneficial for the structural stability during subsequent treatments.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Physical
Ting Jiang, Bo Yan, Minzheng Jiang, Buguang Xu, Sheng Gao, Yi Xu, Yueqiang Yu, Tingang Ma, Tao Qin
Summary: To investigate the impact of printing parameter configurations on the forming performance of Digital Light Processing (DLP) 3D printed samples, printing experiments were conducted on DLP 3D printing devices with enhanced adhesion and efficient demolding. The molding accuracy and mechanical properties of samples with different thickness configurations were tested. The results show that the dimensional accuracy is highest at a layer thickness of 0.1mm, and the mechanical properties decline with increasing layer thickness.
Article
Materials Science, Ceramics
Kiran Kumar Sahu, Yashwant Kumar Modi
Summary: This study presents a multi-objective optimization for additively manufactured ceramic porous bone scaffold prototypes using a hybrid Taguchi-based Grey relational analysis approach. The results indicate that build orientation, layer thickness, and delay time are the most significant factors affecting the response parameters.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Tugce Tezel, Murat Ozenc, Volkan Kovan
Summary: The study investigated the impact strength of engineering plastics produced by additive manufacturing with different layer thickness and print orientation. PC was most affected by layer thickness, with the highest impact strength achieved at 0.3 mm, while PLA had the lowest strength. The worst impact strength results were obtained in the upright orientation.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Weiping Chen, Zhiping Chen, Ling Chen, Dezhi Zhu, Zhiqiang Fu
Summary: Binder jet 3D printing (BJ3DP) has the potential to manufacture large-scale complex and customizable metal parts with low cost and high efficiency. This study optimized the printing parameters and demonstrated the effects of the optimal parameters on the dimensional quality and hardness of green and sintered samples.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Dentistry, Oral Surgery & Medicine
Gan Jin, Seung-Ho Shin, June -Sung Shim, Keun-Woo Lee, Jong-Eun Kim
Summary: This study aimed to investigate the effects of implant-analog-holder (IAH) offset, inner structure, and printing layer thickness on the accuracy and positional changes of 3D printed dental models. The results showed that these factors significantly affected the accuracy of the printed models and the positions of the implant analogs. Clinicians can improve printing accuracy and minimize positional changes by considering the recommended IAH offset, inner structure, and printing layer thickness.
JOURNAL OF DENTISTRY
(2022)
Article
Chemistry, Physical
Simon Riechmann, Odo Wunnicke, Arno Kwade
Summary: Binder jetting technology is used to produce porous objects by selectively depositing binder layer by layer on a powder bed. This study investigates the relationship between pore size and mechanical properties of parts printed with a commercially available PMMA powder binder system, revealing that pore size decreases as binder loading increases. The research also highlights the potential application of binder jetted parts as filters and the close relationship between porosity and mechanical strength.
Article
Polymer Science
Feiyang He, Muhammad Khan
Summary: Fused Deposition Modeling (FDM) is a widely used additive manufacturing process that builds objects by stacking plastic materials layer by layer. ABS, a commonly used plastic, is favored for its high fatigue performance. Effective optimization of 3D printing parameters is crucial for producing ABS components with high fatigue performance.
Article
Engineering, Manufacturing
Ting -Yu Cheng, Yi-Chen Weng, Chien -Hua Chen, Ying-Chih Liao
Summary: A reactive binder jetting process is developed to simplify the manufacturing of 3D objects. The process involves using a multiple-jetting method to create hydrogel patterns on a gypsum powder bed. The addition of trivalent or tetravalent cationic ions improves the mechanical strength and water resistance of the printed samples, with the best results achieved using tetravalent Zr4+ ink.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Yifan Yang, Zhenhuan Zhou, Xuyang Chu, Xiaojin Tang, Mo Zhou, Wei Zhou, Ting Fu
Summary: A combined-structure catalyst was fabricated using 3D printing technology to enhance the mass-transfer performance and mechanical strength in xylene isomerization reaction.
MATERIALS & DESIGN
(2022)
Article
Engineering, Manufacturing
Kazi Moshiur Rahman, Amanda Wei, Hadi Miyanaji, Christopher B. Williams
Summary: In binder jetting additive manufacturing, the liquid binder plays a crucial role in binding the powder particles together and providing structural integrity to the green parts. However, the impact of the binder on part densification and subsequent part properties is still not well understood. This study investigates the influence of the binder on densification through a new approach called shell printing, which allows for varying the amount of binder content in the green parts. By selectively depositing the binder around the part surface, the packed powders are trapped inside the bound shell geometry and can be sintered to densify the part. Manipulating the shell thickness enables the exploration of the effects of the binder content on the process-structure-property relationships.
ADDITIVE MANUFACTURING
(2023)
Article
Nanoscience & Nanotechnology
Chengyang Wang, Shengqi Ma, Dandan Li, Junyu Zhao, Hongwei Zhou, Dezhi Wang, Dongpeng Zhou, Tenghai Gan, Daming Wang, Changwei Liu, Chunyan Qu, Chunhai Chen
Summary: Lightweight structures are often used in aircraft, vehicles, and engine components. 3D printing technology offers flexibility and personalized design for lightweight polymer structures, but synthesizing polymers with high specific strength and high Tg remains a challenge.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Yuanyuan Gao, Yijun Zhang, Laure Michelin, Jacques Lalevee, Angelique Simon-Masseron
Summary: This study investigates the influence of different inorganic binders on the photopolymerization process of LTA zeolite/polymer composites. The optimal formulation with PEGDA and colloidal silica shows excellent depth of cure and spatial resolution. The material exhibits hierarchical porosity, high BET surface area, and high compressive strength after thermal treatment. The ion exchange capacities of Ni2+ and Sr2+ are evaluated, and the effect of colloidal silica as a binder is studied. This research expands the applications of highly-filled composites obtained by photopolymerization in 3D printing of high-performance lightweight materials and ion exchange.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Ling Chen, Weiping Chen, Zhiqiang Fu, Guangxin Ding, Zhiping Chen, Dezhi Zhu
Summary: In this study, the printing and sintering parameters of 316L stainless steel in Binder jet 3D printing technique were systematically investigated. Optimal parameters were determined through orthogonal experimental design, and the resulting samples exhibited excellent mechanical properties.
ADVANCED ENGINEERING MATERIALS
(2023)
Review
Engineering, Environmental
Jing Wee Koo, Jia Shin Ho, Jia An, Yi Zhang, Chee Kai Chua, Tzyy Haur Chong
Summary: This paper discusses the advancements of 3D printing technology in water treatment membranes over the past decade, and debates the feasibility of 3D printing for membranes and spacers. It also introduces various 3D printing techniques, analyzes their suitability for membrane and spacer fabrication, and reviews past studies related to this topic.
Article
Chemistry, Applied
Aakanksha Pant, Amelia Yilin Lee, Rahul Karyappa, Cheng Pau Lee, Jia An, Michinao Hashimoto, U-Xuan Tan, Gladys Wong, Chee Kai Chua, Yi Zhang
Summary: The research focuses on enhancing the nutritional value and reducing costs of 3D food printing using fresh vegetables to meet the needs of dysphagic diets.
FOOD HYDROCOLLOIDS
(2021)
Article
Engineering, Environmental
Jing Wee Koo, Jia Shin Ho, Yong Zen Tan, Wen See Tan, Jia An, Yi Zhang, Chee Kai Chua, Tzyy Haur Chong
Summary: Feed spacers are essential for controlling membrane fouling in spiral wound reverse osmosis modules. Novel sinusoidal spacers with wavy axial filaments and perpendicular or slanted transverse filaments showed promising results in reducing membrane permeability decrease. Further optimizations are needed to reduce channel pressure loss.
Article
Engineering, Manufacturing
Xuhui Zhang, Zhen Xiao, Wenhui Yu, Chee Kai Chua, Lihua Zhu, Zongshen Wang, Peng Xue, Shuai Tan, Yongling Wu, Hongyu Zheng
Summary: The study on Er-modified 7075 aluminum alloy showed that the addition of Er can reduce crack density but increase porosity, with Er existing in the form of unmelted particles and sub-micrometer scale Al3Er. The deterioration of fluidity in the molten pool due to Er particles leads to higher porosity, while the coherency between aluminum matrix and Al3Er favors grain refinement and crack reduction.
VIRTUAL AND PHYSICAL PROTOTYPING
(2022)
Review
Materials Science, Multidisciplinary
Hong Wei Tan, Yu Ying Clarrisa Choong, Che Nan Kuo, Hong Yee Low, Chee Kai Chua
Summary: In recent years, the 3D printed electronics technology has attracted significant attention from industries and researchers due to its unique features. This review provides an in-depth overview of the latest 3D electronic printing techniques, innovative practical technologies, and upcoming application trends in advanced functional materials for fabricating 3D printed electronics devices.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Engineering, Manufacturing
Che Nan Kuo, Yu Ping Wang, Chee Kai Chua
Summary: Metal additive manufacturing technologies have been widely used in aerospace and medical device industries. Porous materials have been extensively studied due to the maturity of such technologies. This study explores the relationship between the mechanical properties of porous materials and factors like surface roughness and ratio between surface roughness and strut diameter. It also investigates the formulation development of an electrolyte with a surfactant to enhance the surface finish during the electropolishing process of 3D printed Ti-6Al-4V porous materials.
VIRTUAL AND PHYSICAL PROTOTYPING
(2022)
Article
Chemistry, Applied
Yi Zhang, Amelia Yilin Lee, Kanitthamniyom Pojchanun, Cheng Pau Lee, Aiwu Zhou, Jia An, Michinao Hashimoto, U-Xuan Tan, Chen Huei Leo, Gladys Wong, Chee Kai Chua, Aakanksha Pant
Summary: Three-dimensional food printing can help consumers accept and consume alternative proteins more easily by printing final products that resemble familiar natural foods in terms of taste, texture, and appearance. This study focuses on optimizing multicomponent food inks fortified with alternative proteins for 3D printing using response surface methodology (RSM). The addition of xanthan gum as a shear thinning and hydrating agent optimized the printability and syneresis of the six protein inks. This RSM-based approach has the potential to be widely adopted in 3D food printing.
FOOD HYDROCOLLOIDS
(2022)
Article
Biochemistry & Molecular Biology
Chen Huei Leo, Su Yi Foo, Joseph Choon Wee Tan, U-Xuan Tan, Chee Kai Chua, Eng Shi Ong
Summary: This study aims to extract bioactive compounds from orange peel waste (OPW) using a green extraction method called pressurized hot water extraction (PHWE). The results showed that extraction temperatures of 60 degrees C and 80 degrees C yielded distinct bioactive compounds with better antioxidant capacity. Specifically, treatment with 60 degrees C OPW extracts inhibited vascular inflammation and endothelial dysfunction in vitro, suggesting its vasoprotective effects mediated by anti-inflammatory effects.
Review
Engineering, Biomedical
Jessica Mancilla-De-la-Cruz, Marisela Rodriguez-Salvador, Jia An, Chee Kai Chua
Summary: This paper presents the use of 3D printing technology in drug delivery applications. The different variations of the technique according to characteristics, materials, and dosage forms are discussed. The seven main categories of 3D printing and the most frequent materials used are introduced. The paper also explores different forms of drug dosage and provides insights for those interested in the advancement of drug delivery and the development of 3D printing applications in this area.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2022)
Article
Engineering, Biomedical
Amedeo Franco Bonatti, Giovanni Vozzi, Chee Kai Chua, Carmelo De Maria
Summary: This paper proposes a deep learning-based control loop for extrusion-based bioprinting that automatically optimizes printing parameters and monitors the printing process online. By collecting a comprehensive dataset and training a machine learning model, the authors demonstrate the automation of quality control in the bioprinting process.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2022)
Article
Engineering, Manufacturing
Aakanksha Pant, Phoebe Xin Ni Leam, Chee Kai Chua, U-Xuan Tan
Summary: Food waste utilisation and zero waste approach are effective ways to promote a sustainable economy. Three-dimensional food printing (3DFP) can help turn food waste into value-added products that resemble familiar consumables. In this study, spinach stems and kale stalks were used to formulate food inks that were tested for their rheological properties and suitability for dysphagia patients. The research demonstrates a promising method of converting vegetable waste into aesthetically pleasing edible diets through 3DFP.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Engineering, Manufacturing
Cherq Chua, Swee Leong Sing, C. K. Chua
Summary: This study uses finite element analysis to investigate the mechanical performance of in-situ alloyed titanium-tantalum lattice structures fabricated using laser powder bed fusion. The study finds that both simulation methods accurately predict the elastic modulus, but underestimate the yield strength. Additionally, the study shows that the performance of uniform lattice structures agrees with the Gibson-Ashby model, and suggests that more information on defect conditions is needed to improve simulation accuracy.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Review
Engineering, Manufacturing
S. L. Sing, C. N. Kuo, C. T. Shih, C. C. Ho, C. K. Chua
Summary: The adoption of laser powder bed fusion (L-PBF) for metals by the industry has been limited due to inconsistency in parts. Machine learning (ML) has the potential to overcome this obstacle by utilizing datasets obtained at various stages of the process chain, leading to better quality control.
VIRTUAL AND PHYSICAL PROTOTYPING
(2021)
Article
Engineering, Biomedical
Jia An, Chee Kai Chua, Vladimir Mironov
Summary: The application of machine learning in bioprinting has attracted attention, and addressing Big Data and Digital Twin is crucial for the future development of 3D bioprinting.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2021)