Article
Mathematics
Dan-Andrei Serban, Cosmin Marsavina, Alexandru Viorel Cosa, George Belgiu, Radu Negru
Summary: This study investigated the yielding and plastic flow of a rapid-prototyped ABS compound under various plane stress states through experimental and numerical analyses. The numerical results were in accordance with the experimental data, confirming the accuracy of the analyses.
Article
Polymer Science
Slawomir Blasiak, Pawel Andrzej Laski, Jakub Emanuel Takosoglu
Summary: The study aimed to design and produce a pneumatic directional control valve for controlling pneumatic drives, focusing on determining flow parameters and optimizing flow to achieve high performance and efficiency.
Article
Chemistry, Analytical
Roberto Paoli, Davide Di Giuseppe, Maider Badiola-Mateos, Eugenio Martinelli, Maria Jose Lopez-Martinez, Josep Samitier
Summary: This paper discusses the application of digital manufacturing and rapid prototyping technologies in Organ-on-a-Chip applications, as well as the main thermoplastic material choices and manufacturing methods, and investigates the limitations of the PDMS soft lithography strategy.
Article
Engineering, Manufacturing
Tony Gerges, Vincent Semet, Philippe Lombard, Bruno Allard, Michel Cabrera
Summary: Nowadays, there is a wide range of methods being developed in the technology field of selective metallization of polymer surface for manufacturing compact electronic devices. However, most of these methods are expensive, complex, and involve toxic products. In this study, a new process called Rapid 3D-Plastronics was developed by combining 3D printing and selective metallization, offering a low-cost and less hazardous alternative. The process was successfully applied to manufacture complex 3D electronic devices, such as heaters and sensors, high-performance coils, and flexible electronic circuits.
ADDITIVE MANUFACTURING
(2023)
Article
Chemistry, Analytical
Jinwook Kim, Bryce Menichella, Hanjoo Lee, Paul A. A. Dayton, Gianmarco F. F. Pinton
Summary: This article presents a rapid prototyping method for sub-megahertz single-element piezoelectric transducers using 3D-printed components. The method involves using 3D-printed external housing parts with a single matching layer and either air backing or epoxy-composite backing. The prototyping time is significantly reduced compared to conventional methods, and the method is demonstrated for 590kHz single-element transducers with temporal pulse controllability and different backing designs.
Article
Chemistry, Applied
Nico Nys, Michael Koenig, Peter Neugebauer, Matthew J. Jones, Heidrun Gruber-Woelfler
Summary: Traditional fabrication technologies limit lab-scale crystallizer design, but additive manufacturing provides an opportunity to overcome these challenges by using traditional materials such as glass or metal alloys. However, despite its potential, this technology has not yet found widespread use in crystallizer design.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2023)
Article
Medicine, General & Internal
Alexey Unkovskiy, Franziska Schmidt, Florian Beuer, Ping Li, Sebastian Spintzyk, Pablo Kraemer Fernandez
Summary: Comparison of SLA and DLP printing methods for complete denture base fabrication accuracy revealed that SLA has higher trueness in most build angles, while DLP showed better precision. Additionally, the 90 degrees build angle may provide the best trueness for both SLA and DLP printing methods.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Management
Nazanin Hosseini Arian, Alireza Pooya, Fariborz Rahimnia, Ali Sibevei
Summary: This study assessed the impact of Rapid Prototyping (RP) in the product development phase on the sustainability of a conventional supply chain. RP utilization was found to reduce assembly parts and material consumption, indirectly affecting waste generation, logistics, CO2 emissions, processes, and total costs. Increase in operational skills and knowledge in the social dimension was shown to reduce failure rates and improve product quality, highlighting the importance of training programs in enhancing social sustainability. The proposed generic model can help decision-makers accelerate RP adoption in supply chains and provide insights for operational decisions in product design stage.
OPERATIONS MANAGEMENT RESEARCH
(2021)
Article
Engineering, Mechanical
Rupinder Singh, Gurwinder Singh, Arun Anand
Summary: An intelligent 3D printed sensor has been designed and manufactured to monitor the re-occurrence of diaphragmatic hernia in bovines after surgery. The sensor is an Internet of Things (IOT)-based solution and was created using SolidWorks and ANSYS software. To ensure accuracy, load tests and strain-stress rate analyses were conducted.
RAPID PROTOTYPING JOURNAL
(2023)
Article
Materials Science, Ceramics
Yoshitaka Ono, Yasuo Hayashi, Shu-hei Urashima, Hiroharu Yui
Summary: The surface roughness of glass, which affects various properties, can be controlled by a novel etching scheme using gaseous hydrogen fluoride under high temperature. This method allows for rapid and reproducible control of the surface nano-roughness of silicate glasses by changing the reaction temperature.
INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE
(2022)
Article
Neurosciences
Matthew T. Flavin, Marek A. Paul, Alexander S. Lim, Senan Abdulhamed, Charles A. Lissandrello, Robert Ajemian, Samuel J. Lin, Jongyoon Han
Summary: The article introduces a fast, low-cost fabrication process for patterning electrode contacts in an implantable peripheral nerve cuff, using a laser cutter to ensure precise contact geometries. This method shows favorable electrical characteristics and expected electrophysiological behaviors in acute implantation on the rat sciatic nerve, making it suitable for rapid manufacturing with consistent and precise electrode geometries.
FRONTIERS IN NEUROSCIENCE
(2021)
Article
Multidisciplinary Sciences
Carlie Rein, Mehmet Toner, Derin Sevenler
Summary: Soft lithography allows rapid prototyping of precise microfluidic features using a deformable elastomer like polydimethylsiloxane (PDMS). However, for applications where flexibility of PDMS is a drawback, more rigid materials like epoxy and glass have been proposed. Devices fabricated from epoxy and glass offer superior mechanical performance, feature resolution, and solvent compatibility compared to alternatives. This article presents a detailed step-by-step method for fabricating rigid microfluidic devices from soft lithography patterned epoxy and glass, demonstrating their use in high throughput cell focusing with rigid high aspect ratio spiral microchannels.
SCIENTIFIC REPORTS
(2023)
Review
Chemistry, Multidisciplinary
Chen Long, Xu Jinghang, Luo Xichun, Liu Zhanqiang, Wang Bing, Song Qinghua, Cai Yukui, Wan Yi, Gao Xiangyu, Li Chunlong
Summary: This study reviews the recent advancements in micro/nano manufacturing technologies for the fabrication of anti-/deicing functional surfaces. The principles of aircraft icing and the mechanism of both anti-icing and deicing are summarized. The current micro/nano manufacturing technologies for preparing anti-icing and deicing surfaces are described, along with the advantages and disadvantages of different preparation methods. The fabrication and characterization of nanocomposite materials and composite coatings/thin films with anti-icing and deicing properties are discussed. The development trend and application prospect of micro/nano manufacturing in the field of anti-icing and deicing are presented.
NANOTECHNOLOGY REVIEWS
(2023)
Article
Chemistry, Physical
Piotr Krawiec, Dorota Czarnecka-Komorowska, Lukasz Wargula, Szymon Wojciechowski
Summary: This research demonstrates the efficient production of non-circular pulleys using additive technology, eliminating costly manufacturing processes. Various methods, including selective laser sintering, were shown to achieve high accuracy mapping and uniform morphology of the gears.
Article
Engineering, Manufacturing
Saja Aabith, Richard Caulfield, Omid Akhlaghi, Anastasia Papadopoulou, Shervanthi Homer-Vanniasinkam, Manish K. Tiwari
Summary: Direct-write printing has been instrumental in additive manufacturing, especially in extrusion-based printing, expanding the range of materials and applications. However, the synthesis and preparation of printing inks for direct-write printing can be complex. This study develops a precise 3D printable polymer that allows for the easy prototyping of micrometre-scale silicone structures without the need for cleanroom facilities.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Physical
A. G. Abd-Elrahim, Doo-Man Chun
Summary: Ternary Co3O4-Ni(OH)(2)-graphene hybrid nanocomposites are synthesized using a facile kinetic spray process, resulting in enhanced oxygen evolution reaction performance. The optimized heterostructure exhibits nanosheet and nanoflake morphologies, with improvements in disorder-related modes and downshift of binding energies. The best synthesized material demonstrates excellent OER performance and long-term stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Polymer Science
Van-Ta Do, Doo-Man Chun
Summary: This study proposes a simple and cost-effective method for fabricating superhydrophobic films with excellent performance and stability, which can be applied in various industrial fields.
Article
Green & Sustainable Science & Technology
Jinsik Kim, Doo-Man Chun, Hyung Wook Park, Jisoo Kim
Summary: Porosity is a common issue in powder bed fusion-based additive manufacturing, hindering the underwater application of printed products. This study presents the surface treatment of polyamide 12 (PA12) using large pulsed electron beam (LPEB) irradiations, which effectively reduces surface roughness and porosity. The treatment also enhances hydrophobicity and eliminates the capillary effect, making the PA12 suitable for underwater applications.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Engineering, Industrial
Kui-Kam Kwon, Dae-Seob Song, Ying-Jun Quan, Ji Ho Jeon, Sung-Hoon Ahn
Summary: In this study, a novel process for fabricating crackless high aspect ratio glass through-structures is proposed using laser-induced backside wet etching (LIBWE) and a detachably bonded glass cover. The process allows for the fabrication of high aspect ratio crackless structures with inexpensive machining devices, while inhibiting crack generation.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Textiles
Soo-Min Lee, Woo-Kyun Jung, Juyeon Park, Sung-Hoon Ahn
Summary: With the global population aging, there is a growing demand for physical assistive devices for the elderly. This study developed a wearable gripping aid using a novel 4D material and ergonomic design, aiming to improve handgrip ability for elderly women.
FASHION AND TEXTILES
(2022)
Article
Materials Science, Multidisciplinary
Ying-Jun Quan, Soo-Hong Min, Sungjin Hong, Ji Ho Jeon, Won-Jin Kim, Sung-Hoon Ahn
Summary: This article introduces a camera-based sensing method for structural color sensors, which involves simple image processing to convert RGB data into hue data. Through experimental verification, this method has been proven effective and cost-efficient in application, potentially accelerating the adoption of the Internet of Things in various engineering fields.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Green & Sustainable Science & Technology
Ji-Hyeon Song, Woo-Kyun Jung, Sung-Hoon Ahn
Summary: Among microscale printing processes, dry nanoparticle printing is an environment friendly process that does not require toxic chemicals. A laser process is often integrated as a hybrid system to improve the printing quality and overcome the poor adhesion problem. This study assesses the energy efficiency of the nanoparticle deposition system (NPDS) and the laser-enhanced nanoparticle deposition system (L-NPDS) using real-time power monitoring and theoretical modeling. Introducing laser energy increases the total energy efficiency by 3.78 times and confirms the recyclability of the nanoparticles through X-ray diffraction.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Review
Green & Sustainable Science & Technology
Jun Young Choi, Ji Ho Jeon, Jang Hyeon Lyu, Jungwoo Park, Geun Young Kim, Suk Young Chey, Ying-Jun Quan, Binayak Bhandari, B. Gangadhara Prusty, Sung-Hoon Ahn
Summary: The acceleration of environmental pollution and global warming has led to increased environmental awareness and regulations to reduce carbon emissions. The automotive industry is shifting towards electric vehicles and urban air mobility, where composites are gaining attention for their increased driving range and green mobility. However, the tradeoff between performance and cost has hindered the mass adoption of composites. The latest developments focus on the application of biodegradable composites and robotic automation in composite manufacturing for eco-friendly and cost-effective production.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Ji-Hyeon Song, Young-Gyun Kim, Younggyun Cho, Seongheon Hong, Jun Young Choi, Min-Soo Kim, Sung-Hoon Ahn
Summary: Wearable strain sensors with stretchability and biocompatibility were designed and fabricated using a kirigami-cut PVDF film. The developed sensor can measure strain and strain rate simultaneously, and the piezoelectric performance depends on both strain and strain rate. The relationship between voltage and voltage change rate can be analyzed to detect strain and strain rate. The sensor's performance was evaluated using different kirigami patterns, and it was successfully used for athlete rehabilitation and posture monitoring.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Dae-Seob Song, Ji-Hyeon Song, Sung-Hoon Ahn
Summary: In this study, a facile process was developed to print a 3D microstructure of silver nanoparticles (Ag NPs) for antibacterial applications. The printed Ag NP mesh retained the properties of Ag NPs, and various mesh sizes and porosities were evaluated as antibacterial filters. A prototype water filter with three mesh layers effectively filtered out all active bacteria, demonstrating the viability of the proposed Ag NP 3D printing process for manufacturing antibacterial microstructures.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Van-Ta Do, Doo-Man Chun
Summary: Freshwater shortages pose a threat to ecosystems and human communities worldwide. Inspired by the water collection abilities of cacti and desert beetles, researchers have successfully developed a simple and low-cost method of fabricating a surface that efficiently harvests water. This was achieved by spraying a solution of isopropyl alcohol and a mixture of hydrophobic and hydrophilic silica nanoparticles onto a laminating film, followed by hot-press lamination with sandpaper. The resulting surface exhibited wettability contrast patterns and achieved a high water-harvesting efficiency.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
A. G. Abd-Elrahim, Doo-Man Chun
Summary: Two-dimensional nanomaterials, such as graphene nanosheets and molybdenum disulfide nanoflakes, were hybridized with spinel Mn3O4 through a simple kinetic spray approach. The resulting heterostructured Mn3O4-2D hybrid nanocomposites showed improved reaction kinetics for oxygen evolution. The hybrid nanocomposites exhibited decreased overpotential and improved charge transfer kinetics, leading to enhanced stability for prolonged galvanostatic polarization.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Physics, Multidisciplinary
Manar A. Ali, Doo-Man Chun, E. M. M. Ibrahim, A. G. Abd-Elrahim
Summary: CdS quantum dots were synthesized and characterized. The analysis showed the presence of bi-structural phases and small crystallite size, resulting in high DC conductivity and small activation energy. Furthermore, the AC conductivity and dielectric constant of CdS quantum dots exhibited temperature-dependent behavior.
Article
Engineering, Electrical & Electronic
Young-Gyun Kim, Ji-Hyeon Song, Seongheon Hong, Sung-Hoon Ahn
Summary: In this study, a high-performance kirigami piezoelectric strain sensor was developed and successfully applied in a haptic glove for playing musical instruments. The sensor exhibits high sensitivity, stretchability, and tunability.
NPJ FLEXIBLE ELECTRONICS
(2022)
Article
Engineering, Manufacturing
Daenyoung Kim, Yoo-Seok Kim, Ki Young Song, Sung Hoon Ahn, Chong Nam Chu
Summary: This study proposes two methods to promote the flow of dielectric fluid in order to overcome the challenges in machining aluminum nitride. The experimental results show different effects on material removal rate and tool wear.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
(2022)
