Article
Materials Science, Multidisciplinary
Frederic Demoly, Martin L. Dunn, Kristin L. Wood, H. Jerry Qi, Jean-Claude Andre
Summary: The combination of scientific advances in additive manufacturing and smart materials has led to the emergence of 4D printing, which offers transformation capabilities to objects via stimuli-responsive materials. Despite diverse research initiatives, additional developments are needed for robust system applications in the industry.
MATERIALS & DESIGN
(2021)
Review
Pharmacology & Pharmacy
Jiawei Wang, Yu Zhang, Niloofar Heshmati Aghda, Amit Raviraj Pillai, Rishi Thakkar, Ali Nokhodchi, Mohammed Maniruzzaman
Summary: With the advancement of additive manufacturing technology, 3D printed drug delivery medical devices have gained popularity for their customizable design, intricate structure, and personalized medication. Challenges remain in regulatory issues, scalability, and cost-effectiveness despite remarkable progress made by AM techniques.
ADVANCED DRUG DELIVERY REVIEWS
(2021)
Article
Engineering, Chemical
Farah Ejaz Ahmed, Abdullah Khalil, Nidal Hilal
Summary: Emerging desalination technologies like forward osmosis and membrane distillation have made progress with advances in nanomaterials and electrochemical processes, but challenges remain in factors such as draw solute selection and energy consumption reduction.
Article
Materials Science, Multidisciplinary
Henry A. Colorado, Carlos A. Cardenas, Elkin I. Gutierrez-Velazquez, Juan P. Escobedo, Sergio Neves Monteiro
Summary: This review systematically examines the use of additive manufacturing (AM) or 3D printing (3DP) in military applications, including firearms, armor, and bioinspired ballistic resistant structures. The article analyzes the materials and structures created using AM technologies and explores the results of dynamic loading and impact tests. The study finds that there is an increase in military applications of 3D printing, particularly in gun prototypes. However, there are limitations and concerns regarding unclear regulations that may prevent these weapons from being accessible to ordinary citizens.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Andrey Smirnov, Svyatoslav Chugunov, Anastasia Kholodkova, Maxim Isachenkov, Alexander Vasin, Igor Shishkovsky
Summary: Piezoceramic materials are essential components in modern engineering applications, with traditional manufacturing methods facing challenges in shape conformity. Additive manufacturing technologies present new possibilities in overcoming these challenges. Research on piezoceramic materials reveals their piezoelectric properties and physical characteristics, while additive manufacturing offers a potential solution for improving efficiency and complexity in their production.
CERAMICS INTERNATIONAL
(2021)
Review
Polymer Science
Ayyaz Mahmood, Tehmina Akram, Huafu Chen, Shenggui Chen
Summary: Three-dimensional (3D) and four-dimensional (4D) printing technologies have seen tremendous growth over the last few decades and are now widely used in various industries. However, there are still challenges that need to be addressed for these technologies to advance further.
Review
Engineering, Aerospace
Jihong Zhu, Han Zhou, Chuang Wang, Lu Zhou, Shangqin Yuan, Weihong Zhang
Summary: The integration of topology optimization and additive manufacturing shows promising application prospects in modern manufacturing, with significant progress in multi-scale or hierarchical structural optimization design and topology optimization considering additive manufacturing constraints.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Engineering, Manufacturing
Luca Grigolato, Stefano Rosso, Roberto Meneghello, Gianmaria Concheri, Gianpaolo Savio
Summary: This study proposes a method for fabricating graded density shell-based lattice structures in MEX technology by combining geometric modeling and CAM processing. Experimental results show that the method can reduce design efforts and processing time, while obtaining consistent components.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Industrial
Abraham George, Mohammad Ali, Nikolaos Papakostas
Summary: This study proposes a framework that utilizes robotic process automation technology to improve the efficiency of additive manufacturing design workflow, reducing human intervention and accurately calculating the cost and time requirements of AM processes.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2021)
Article
Business
Jaime Bonnin Roca, Parth Vaishnav, Granger M. Morgan, Erica Fuchs, Joana Mendonca
Summary: Long-term public support can facilitate the diffusion of emerging technologies, while unexpected policy changes may hinder private investment. Institutional instability in Portugal has led to varying adoption rates of Polymer Additive Manufacturing (PAM) and Metal Additive Manufacturing (MAM).
TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE
(2021)
Article
Materials Science, Ceramics
Mehran Dadkhah, Jean-Marc Tulliani, Abdollah Saboori, Luca Iuliano
Summary: This review provides an overview of the challenges in additive manufacturing of ceramics compared to polymers and metals, and discusses the recent progress and current challenges in producing complex shaped ceramic components via AM technologies. The state of the art in 3D printing processes for ceramic fabrication is discussed, including their advantages, disadvantages, and potential applications. The potential and challenges of AM in producing complex shape ceramic components are also explored.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Review
Engineering, Civil
Kaikai Xu, Yadong Gong, Zhao Qiang
Summary: This paper compares additive manufacturing technologies, such as Fused Deposition Modeling, Selective Laser Sintering, Selective Laser Melting, Stereolithography, Layered Object Manufacturing, with traditional manufacturing processes. It discusses the differences in processing principles and materials between laser additive manufacturing and traditional processing technology. The paper also presents the development status of various materials and highlights the advantages of metal products manufactured by additive manufacturing technology. It proposes future prospects and identifies the limitations of additive manufacturing technology.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Review
Engineering, Manufacturing
Osezua Ibhadode, Zhidong Zhang, Jeffrey Sixt, Ken M. Nsiempba, Joseph Orakwe, Alexander Martinez-Marchese, Osazee Ero, Shahriar Imani Shahabad, Ali Bonakdar, Ehsan Toyserkani
Summary: Metal additive manufacturing is actively researched, focusing on physics, statistical and AI-driven process modeling and optimization, structure-property characterization, design optimization, and equipment enhancements. This review specifically addresses the utilization of topology optimization in metal additive manufacturing, including its applications in aerospace, medical, automotive, and other industries, support structure design for thermal-based powder-bed processes, manufacturing constraints and porous feature generation in topology optimization, as well as the adoption of AI models. Open-source and commercial software for topology optimization and metal additive manufacturing are also explored, with considerations given to future research directions and challenges.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Engineering, Industrial
Chenang Liu, Wenmeng Tian, Chen Kan
Summary: This paper reviews the latest research on human-centered additive manufacturing (AM) in the context of human therapy and assistance, and discusses the role of artificial intelligence (AI) in AM product development. The research shows that the application of AI in design, fabrication, and assessment stages brings new opportunities for cost-effective development of human-centered products in AM.
JOURNAL OF MANUFACTURING SYSTEMS
(2022)
Review
Computer Science, Artificial Intelligence
Yingjie Zhang, Wentao Yan
Summary: The continuous development of metal additive manufacturing promises flexible and customized production, but the inability to control process defects and variability has hindered its widespread applications. Process monitoring and control, utilizing machine learning methods, can overcome these challenges and improve quality. This paper reviews the applications of machine learning in metal powder-bed fusion process monitoring and control, highlighting the challenges and possible solutions.
JOURNAL OF INTELLIGENT MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Yeowon Yoon, Yang Xu, Yong Chen
Summary: Inspired by natural porous morphology, a novel additive manufacturing process is proposed to fabricate porosity-embedded structures by integrating stereolithography and inkjet printing. Water droplets are dispensed onto a layer of liquid resin, which is then photocured to define the layer profile and capture the deposited water droplets. By varying inkjet printing parameters, the size and distribution of micropores in the 3D-printed part can be modulated.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2023)
Article
Engineering, Manufacturing
Tengteng Tang, Bhushan Ahire, Xiangjia Li
Summary: This article introduces a novel manufacturing strategy that uses electrically assisted stereolithography to build bioinspired hierarchical structures with heterogeneous material systems. The formation mechanism of metallic structures on the polymer matrix was studied through physics-based multi-scale modeling and simulations, and the correlation between metallic structures morphology, printing solution properties, and printing process parameters in building bioinspired structures was identified.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2023)
Article
Materials Science, Ceramics
Haidong Wu, Wei Liu, Lifu Lin, Yong Chen, Yuerui Xu, Shanghua Wu, Zhenzhong Sun, Di An, Sai Wei, Zhipeng Xie
Summary: Two types of coupling agents, aluminic acid ester and silane coupling agent, were used to modify Al2O3 ceramic powder based on transesterification reactions, solving the poor compatibility problem between ceramic powder and photosensitive resin in Vat photopolymerization. After pressureless sintering, hot isostatic pressing sintering was applied to further enhance the mechanical performance of the Al2O3 ceramic. Additionally, Al2O3 ceramic cutting tools with chip breaker grooves were successfully prepared and demonstrated superior cutting performance compared to commercial ceramic cutting tools.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Tengteng Tang, Saleh Alfarhan, Kailong Jin, Xiangjia Li
Summary: In this study, a new 4D printing technology called liquid crystal templating-assisted vat photopolymerization (LCT-VPP) is introduced. This technology can fabricate bioinspired porous structures with hygro-responsive capabilities by utilizing photopolymerization induced phase separation (PIPS) and liquid crystals (LCs) electro-alignment. The results of this study have implications for designing bioinspired smart materials with special spatial distribution of porous structures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yang Xu, Huachao Mao, Cenyi Liu, Zhengyu Du, Weijia Yan, Zhuoyuan Yang, Jouni Partanen, Yong Chen
Summary: This paper presents a projection-based AM process called hopping light vat photopolymerization (HL-VPP) to address the challenges of fabricating 3D objects with features spanning from microscale to macroscale. HL-VPP achieves large-area, fast-speed, and high-resolution fabrication by synchronizing linear scanning projection with a galvo mirror's rotation. The distinguishing characteristic of HL-VPP is its ability to achieve super-fast curing without motion blur, significantly advancing VPP's use in applications that require macroscale part size with microscale features.
Article
Multidisciplinary Sciences
Yuxuan Sun, Liu Wang, Yangyang Ni, Huajian Zhang, Xiang Cui, Jiahao Li, Yinbo Zhu, Ji Liu, Shiwu Zhang, Yong Chen, Mujun Li
Summary: The authors present an in situ dual heating strategy for the rapid 3D printing of thermosets with complex structures and diverse rheological properties. This strategy combines the direct ink writing (DIW) technique and a heating-accelerated in situ gelation mechanism, allowing for the printing of various thermosets with viscosities spanning five orders of magnitude, printed height over 100 mm, and high resolution of 50 μm.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Manufacturing
Mian Qin, Shuo Qu, Junhao Ding, Xu Song, Shiming Gao, Charlie C. L. Wang, Wei- Hsin Liao
Summary: In this paper, a novel adaptive toolpath generation algorithm is proposed to reduce part distortion in laser powder bed fusion (LPBF) process. The algorithm minimizes thermal gradients and incorporates collision-free and smoothing constraints. Experimental results show that the proposed algorithm can reduce part distortion by 46% compared to zigzag patterns and 36% compared to chessboard-based patterns.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Tengteng Tang, Gana Sai Kiran Avinash Raj Dwarampudi, Xiangjia Li
Summary: An electrically assisted vat photopolymerization (e-VPP) method was proposed to control the surface roughness of Salvinia-inspired structures by introducing multiwalled carbon nanotubes (MWCNTs), which improves the superhydrophobic properties and overall performance of the bioinspired structures. The results show that MWCNTs can increase the superhydrophobicity of printed structures at a relatively high concentration and enhance mechanical strength, contact angle, and liquid surface attachment forces. This research enables the achievement of better interfacial performance with controllable micro-/nano-dual-scale surface roughness properties for various applications.
Article
Chemistry, Multidisciplinary
Han Xu, Shuai Chen, Renzhi Hu, Muqun Hu, Yang Xu, Yeowon Yoon, Yong Chen
Summary: A new continuous projection-based vat photopolymerization process is reported that can directly shape polymer materials into optical lenses with microscale dimensional accuracy and nanoscale surface roughness without post-processing. The process utilizes frustum layer stacking to eliminate staircase aliasing, and a zooming-focused projection system to achieve continuous change of mask images and generate desired layer stacking. Experimental results demonstrate the effectiveness of the proposed process.
Article
Engineering, Manufacturing
Weiming Wang, Dongwei Feng, Li Yang, Shan Li, Charlie C. L. Wang
Summary: This paper presents a method to generate self-supporting lattice structures using topology optimization. The method consists of two phases: TO-based subdivision and TO-based simplification. The subdivision method adaptively generates the lattice structure based on density-based topology optimization, preserving self-supporting properties and avoiding overhanging nodes. The simplification method removes redundant struts while ensuring the required volume and manufacturability. Experimental tests show that the method effectively generates self-supporting lattice structures with stronger mechanical strength.
ADDITIVE MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Yuming Huang, Guoxin Fang, Tianyu Zhang, Charlie C. L. Wang
Summary: This paper presents an algorithm for calculating optimized toolpaths to print thin-walled cellular structures with continuous carbon fiber. The algorithm searches for a continuous path on the dual graph of the input cellular structure to minimize energy and ensure the coverage, continuity, and avoidance of sharp turns during fiber deposition. Physical tests demonstrate a significant enhancement in breaking force, up to 46%, when using toolpaths generated by the algorithm with a similar amount of fibers.
ADDITIVE MANUFACTURING
(2023)
Article
Biochemistry & Molecular Biology
Banashree Gogoi, Carson Gockley, Sushmitha Venu, Yizhen Zhu, Pranith Alluri, Ayinawu Abdul Malik, Mitesh Suhas Despande, Raveena Phadnis, Evangeline Amonoo, Xiangjia Li, Terry L. Alford
Summary: The importance of conductive polymers has increased due to their wide range of applications. The study developed a novel printing process called EF-DID to overcome the limitations of spin coating and achieve high conductivity films. The effects of nanodroplets formation and the use of dimethyl sulfoxide (DMSO) as an additive solvent were investigated.
Article
Biochemistry & Molecular Biology
Yizhen Zhu, Rohan Ravishekar, Tengteng Tang, Banashree Gogoi, Carson Gockley, Sushmitha Venu, Terry L. Alford, Xiangjia Li
Summary: Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has emerged as a promising conductive polymer for hole-transport layers in perovskite solar cells. Conventional fabrication methods have resulted in PEDOT:PSS nanofilms with limited performance. This study introduces a novel 3D printing approach that combines programmable acoustic field modulation with electrohydrodynamic spraying, allowing for precise control of PEDOT:PSS nanofilm morphology. The experimental findings show that horizontal ultrasonic vibrations result in a uniform dispersion of PEDOT:PSS nanoparticles, and when applied at low amplitude during printing, the nanofilms exhibit exceptional wettability and impressive electrical conductivity. This approach holds great promise for various nanotechnological applications.
Article
Chemistry, Multidisciplinary
Jie Jin, Fangzhou Zhang, Yulong Yang, Chengqian Zhang, Haidong Wu, Yang Xu, Yong Chen
Summary: This article introduces a novel hybrid 3D printing technique that combines the strengths of vat photopolymerization and direct-ink-writing processes to achieve multimaterial and high-resolution printing of functional structures and devices. The method involves dispensing liquid-like materials into a photocurable matrix material and using a controlled laser beam to selectively photocure the dispensed material trace or the matrix material. The versatility of the method is demonstrated by fabricating intricate 3D prototypes using various materials available for vat photopolymerization and direct-ink-writing technologies.
Proceedings Paper
Automation & Control Systems
Tianyu Zhang, Yuming Huang, Piotr Kukulski, Neelotpal Dutta, Guoxin Fang, Charlie C. L. Wang
Summary: This paper proposes a skeleton-based support generation method for robot-assisted 3D printing with curved layers. The effectiveness of the algorithm is verified through experiments conducted on a dual-material printing platform.
2023 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION (ICRA 2023)
(2023)
