Article
Engineering, Manufacturing
Ross Johnston, Zafer Kazanci
Summary: This study compares the effects of different material combinations on the performance of cellular structures, finding that single-material structures perform best in single loading cycle situations, while multi-material structures are suitable for situations requiring multiple loading cycles. Introducing materials with varying stiffnesses into specific regions within the structure can modify the Poisson's ratio during compression, improving overall performance.
ADDITIVE MANUFACTURING
(2021)
Article
Polymer Science
Olimpia Basurto-Vazquez, Elvia P. Sanchez-Rodriguez, Graham J. McShane, Dora I. Medina
Summary: This study investigates 3D-printed PET-G honeycomb structures with different infill densities and printing orientations to evaluate their energy absorption effectiveness. The results showed that structures with upright printing direction and 100% infill density exhibited superior energy absorption performance.
Article
Engineering, Manufacturing
Rui Tao, Floriane Granier, Daniel Therriault
Summary: In this work, flexible piezoelectric composite sensors with integrated electrodes were successfully fabricated using multi-material extrusion-based 3D printing technology. The printing technique relied on the extrusion of two paste-like materials: piezoelectric and conductive composite inks. The comprehensive characterization of the inks and supporting fluid was performed, and three types of piezoelectric composite demonstrators were tested under tension or compression. The results showed consistent piezoelectric performance and good shape fidelity compared to the designed models. This fabrication approach opens up new opportunities for flexible piezoelectric structures in sensing and energy harvesting applications.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Samantha Mora, Nicola M. Pugno, Diego Misseroni
Summary: This article reviews the latest studies on 3D printed lattice structures using photopolymers fabricated by Material Jetting techniques. The main factors influencing the printing process are analyzed, and the mechanical performance, advantages, limitations, and challenges of the 3D printed lattice materials are highlighted. Possible approaches for future research and areas to be addressed, including cost and environmental concerns, are also indicated.
Review
Materials Science, Multidisciplinary
Amit Bandyopadhyay, Kellen D. Traxel, Susmita Bose
Summary: The challenging task of emulating the unique combination of structural, compositional, and functional gradation found in natural materials has been facilitated by recent innovations in additive manufacturing (AM) or 3D Printing (3DP). These techniques enable the creation of structures with variations in material composition, structure, and performance, giving manufacturers an edge in designing components for highly-specialized applications in different industries.
MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2021)
Article
Materials Science, Ceramics
Rene Wick-Joliat, Martina Schroffenegger, Dirk Penner
Summary: This study presents a method for fabricating multi-material ceramic parts using a granulate-fed printer. Examples include colored ZrO2 parts and ceramic high-temperature heating elements consisting of electrically conductive and non-conductive components. Microscopy confirms flawless layer adhesion between different materials if the material combination is chosen carefully. All feedstocks are based on a commercially available ceramic injection molding binder filled with the desired ceramic powder, making the preparation and optimizing of conditions simple and reproducible.
CERAMICS INTERNATIONAL
(2023)
Review
Engineering, Mechanical
Parth Patpatiya, Kailash Chaudhary, Anshuman Shastri, Shailly Sharma
Summary: This article reviews the state-of-the-art of polyjet 3D printing of polymers and multi-material structures, highlighting its applications and discussing various parameters and optimization methods. The article also presents models and relationships for predicting and improving the overall performance of polyjet fabrication, as well as compares polyjet with other multi-material additive manufacturing techniques.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Biomedical
Laszlo Jaksa, Othniel James Aryeetey, Sepideh Hatamikia, Katharina Naegl, Martin Buschmann, Dieter H. Pahr, Gernot Kronreif, Andrea Lorenz
Summary: In this study, a multi-material 3D printer was used to print a human liver model with tuned mechanical and radiological properties. The printed model showed closer similarity to real human liver tissue compared to the printing material. The results demonstrate new customization opportunities in the field of anatomic models.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2023)
Article
Nanoscience & Nanotechnology
Karun Kalia, Benjamin Francoeur, Alireza Amirkhizi, Amir Ameli
Summary: A facile manufacturing method for in situ foam 3D printing of thermoplastic materials is reported. By incorporating thermally expandable microspheres (TEMs) into the filament, the researchers achieved the in situ foaming during printing, resulting in highly uniform cellular structures. The study also found that the addition of TEM and plasticizer did not significantly affect the critical temperatures of the material, but the foaming process greatly improved its ductility and toughness.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Juan Andres Vasquez-Peralvo, Adrian Tamayo-Dominguez, Gerardo Perez-Palomino, Jose Manuel Fernandez-Gonzalez, Thomas Wong
Summary: The use of additive manufacturing and different metallization techniques for prototyping radio frequency components is becoming more popular. This study designs and manufactures prototypes of different 3D frequency selective structures using VAT photopolymerization, and metallizes them using metallic paint atomization and electroplating. The results show that copper electroplating can achieve lower loss band-pass.
Article
Construction & Building Technology
Goncalo Duarte, Nathan Brown, Ali Memari, Jose Pinto Duarte
Summary: This paper reviews and learns from historic buildings that rely on compression to resist gravity loads, in order to guide the construction of affordable housing and shelters using 3D printed concrete. By analyzing the form, structural principle, materials, and construction process of historic structures, the authors identify shapes suitable for 3D printing of concrete and propose strategies for addressing printability issues. The paper also provides insights into existing construction scale printing processes and material considerations to ensure successful printing of the identified forms.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Crystallography
Ye-rim Kim, Eun-ah Kim, Joon Phil Choi, Taeho Ha, Soonho Won, Jong Bae Jeon, Se-hun Kwon, Hak-sung Lee
Summary: This study investigates the challenges of additively manufactured interlocking structures and emphasizes the joinability issues caused by thermal deformation. Through detailed analysis and simulations, it is shown that compensated design significantly enhances the joinability of these structures. These findings offer valuable perspectives for advancing the design of additive manufacturing components in soft magnetic materials such as electric motor stators.
Review
Engineering, Civil
Sara Alonso-Canon, Elena Blanco-Fernandez, Daniel Castro-Fresno, Adrian Yoris-Nobile, Laura Castanon-Jano
Summary: This article reviews the current limitations of 3D printing of concrete structures, particularly the challenges in incorporating reinforcements. It focuses on the methods employed for reinforcement, specifically through the use of fibers. The study analyzes the properties, lengths, and percentages of fibers in mixtures, and compares the test results between printed and molded materials. The findings highlight the improvements in test results achieved by incorporating fibers.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Construction & Building Technology
Deena El-Mahdy, Hisham S. Gabr, Sherif Abdelmohsen
Summary: SaltBlock, a sustainable construction approach utilizing sand and salt as abundant materials in hot arid climates, showed promising compression strength and thermal performance through digital fabrication. The research aims to encourage full-scale sustainable applications in the desert construction industry.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
A. Aramburu, I. Calderon-Uriszar-Aldaca, I. Puente
Summary: This paper studies the mechanical behavior of annular 3D-printed cylindrical specimens and compares it with the expected theoretical behavior of cast-moulded geometries. Two key procedures, geometric characterization and formulation for defining effective section, are proposed based on the test results and verified reasons for the discrepancy between theoretical estimation and experimental results in structural calculations.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Computer Science, Artificial Intelligence
Jingchao Jiang, Yi Xiong, Zhiyuan Zhang, David W. Rosen
Summary: This paper proposes a design for additive manufacturing (AM) framework integrated with machine learning (ML) to learn the complex relationships between design and performance spaces. It demonstrates the effectiveness of using ML in designing a customized ankle brace with tunable mechanical performance.
JOURNAL OF INTELLIGENT MANUFACTURING
(2022)
Article
Automation & Control Systems
Ahmad Bin Arshad, Aamer Nazir, Jeng-Ywan Jeng
Summary: Springs are widely used mechanical devices in various industries and mechanisms, traditionally manufactured with limitations in varying parameters like pitch and wire diameter. Additive manufacturing processes allow for designing and producing springs with variable parameters, increasing stiffness while decreasing fatigue life as parameters are altered.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Aamer Nazir, Min-Chih Liao, Yan-Wei Zhu, Usman Nazir
Summary: The study suggests that using plastic materials in asphalt mixtures can reduce bulk density, increase stability, and enhance strain capacity. However, caution should be taken when incorporating hollow or fine printed plastic aggregates.
3D PRINTING AND ADDITIVE MANUFACTURING
(2022)
Article
Automation & Control Systems
Yeabsra Mekdim Hailu, Aamer Nazir, Chi-Pin Hsu, Shang-Chih Lin, Jeng-Ywan Jeng
Summary: This study investigates the mechanical properties of three different lattice structures under torsional loading. Results show that surface-based structures have higher torsional stiffness and energy absorption capacity compared to strut-based structures.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Ruiliang Feng, Jingchao Jiang, Atul Thakur, Xiangzhi Wei
Summary: This paper presents a lightweight two-level support structure for extrusion-based additive manufacturing (EBAM). The problem is divided into two subproblems: finding a slim Level 1 support and a slim Level 2 support. Three efficient metaheuristic algorithms are developed to solve these subproblems. The simulation results show that the proposed method saves materials compared to existing methods.
RAPID PROTOTYPING JOURNAL
(2023)
Article
Automation & Control Systems
Ahmed Gohar, Aamer Nazir, Shang-Chih Lin, Jeng-Ywan Jeng
Summary: This study designs functionally graded lattice structures with three different triply periodic minimal surface (TPMS) structures (Gyroid, Schwarz-P, and Schwarz-D) to optimize mechanical properties by changing relative density and period. The structures are additively manufactured and tested in flexure, showing that changing the period decreases mechanical properties and leads to stress concentrations and early failure.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Jingchao Jiang
Summary: Thirty years after its development, additive manufacturing has become a mainstream manufacturing process, fabricating products layer-by-layer based on a 3D model. It allows for manufacturing complex parts and offers more design optimization possibilities compared to traditional techniques. Machine learning, a hot technology used in various fields, including medical diagnosis and image processing, is now being increasingly applied in the manufacturing industry, particularly additive manufacturing. This paper provides a comprehensive understanding of the current status of machine learning-enhanced additive manufacturing technologies and discusses future perspectives in a special issue organized by the International Journal of Computer Integrated Manufacturing.
INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING
(2023)
Review
Chemistry, Physical
Chuanbin Du, Yanhua Zhao, Jingchao Jiang, Qian Wang, Haijin Wang, Nan Li, Jie Sun
Summary: This paper reviews the pore defects in laser powder bed fusion (LPBF) additive manufacturing. Firstly, the formation mechanisms are summarized based on current research. Secondly, the effects of porosity and pore characteristics on mechanical properties are clarified. Thirdly, the control methods and strategies to reduce pore defects are discussed. Finally, research gaps and future directions are given.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Manufacturing
Jingchao Jiang, Xiaoya Zhai, Kang Zhang, Liuchao Jin, Zhichao Shen, Wei-Hsin Liao
Summary: Additive manufacturing has significantly developed, and low-melting point alloys (LMPAs) are becoming more attractive due to their favorable electrical/thermal conductivities and mechanical strengths. However, LMPA additive manufacturing is still in its infancy. This paper presents a novel strategy using extrusion additive manufacturing with two nozzles to fabricate complex and/or multifunctional LMPA components, enabling the use of LMPAs in various applications.
ADDITIVE MANUFACTURING
(2023)
Editorial Material
Computer Science, Interdisciplinary Applications
Jingchao Jiang, Bin Zou, Jikai Liu, David Rosen
INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING
(2023)
Article
Engineering, Multidisciplinary
Jingchao Jiang, Xiaoya Zhai, Liuchao Jin, Kang Zhang, Jun Chen, Qitao Lu, Wei-Hsin Liao
Summary: This paper presents a new manufacturing method called reversed additive manufacturing (RAM), discusses the design process and parameter settings of RAM, and demonstrates its feasibility through experiments. The findings of this study have significant implications for improving the design efficiency of RAM.
JOURNAL OF ENGINEERING DESIGN
(2023)
Article
Green & Sustainable Science & Technology
Kun Wang, Jun Cao, Jianhong Gao, Jing Zhao, Wei Jiang, Waqar Ahmad, Jingchao Jiang, Min Ling, Chengdu Liang, Jun Chen
Summary: In this study, a design strategy of inner-outer phosphorus (P) doped hollow spindle-like alpha-Fe2O3 nanoparticles (NPs) was introduced to improve the electroconductivity and buffering volume expansion of low-cost earth-abundant transition metal oxides (TMOs) used as anodes in Li-ion batteries. The results showed that the calcination temperature determined the P contents, and increasing temperature led to the emergence and disappearance of P-Fe3O4/Fe2O3 heterojunctions and the transition of hollow-to-solid structures, thus improving the electrochemical performances, electronic/ionic conductivity, and reaction kinetics. Notably, a 10 wt% P doped Fe2O3 (350 degrees C) anode exhibited remarkable rate capacity and cycle stability, indicating the potential of this design strategy to enhance the electrochemical performance of energy storage devices.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
