3D Printing and Additive Manufacturing最新文献

{"title":"Effects of Build Orientation on Mode III Fracture Load of Additively Manufactured Polylactic Acid Material.","authors":"Bahman Paygozar, Recep M Gorguluarslan","doi":"10.1089/3dp.2024.0236","DOIUrl":"10.1089/3dp.2024.0236","url":null,"abstract":"<p><p>This study investigates the mode III fracture behavior of polylactic acid (PLA) fabricated by additive manufacturing (AM) through both experimental testing and numerical simulation. While AM is widely used in structural applications, research on mode III fracture behavior remains limited, particularly regarding the influence of build orientation on shear-driven failure. In this study, transverse shear cracked plate specimens were fabricated using fused filament fabrication (FFF) in three build orientations: horizontal, lateral, and vertical. These specimens were tested under mode III loading using a newly designed tensile testing fixture to determine the fracture toughness of PLA for each orientation. Young's modulus values, obtained from tensile tests on dog-bone specimens, were used to compute the mode III fracture energy. Numerical simulations were performed using the extended finite element method (XFEM) to predict fracture load and crack propagation. The results showed close agreement with experiments, with deviations of 1.1%, 8.5%, and 0.4% for horizontal, lateral, and vertical orientations, respectively. The closest agreement was observed for vertically printed specimens, attributed to the intrinsic nature of mode III loading. These findings highlight the potential of XFEM as a reliable tool for predicting shear-driven fracture behavior in FFF-printed PLA across different build orientations, supporting improved structural evaluation and design decisions.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"13 4","pages":"376-386"},"PeriodicalIF":2.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13428134/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148654855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The State of the Art in Defect Monitoring Technologies for Selective Laser Melting Processes.","authors":"Zhiwen Li, Yonghong Zhu, Ruixiang Cao","doi":"10.1089/3dp.2024.0094","DOIUrl":"10.1089/3dp.2024.0094","url":null,"abstract":"<p><p>Selective laser melting (SLM) is a multidisciplinary manufacturing technology in which information technology, new material technology, and manufacturing technology are integrated. It is considered one of the most promising additive manufacturing technologies due to its capability for flexible customization and its advantages in forming complex components, and it has found wide application in the fields of aerospace, rapid prototyping, and medical equipment, among others. However, there are certain challenges that need to be addressed for the further development and application of SLM technology. These challenges include insufficient manufacturing process stability, difficulty in real-time monitoring of manufacturing quality, and the immaturity of the technology regarding the real-time adjustment of process parameters. The occurrence of defects during the SLM process is a major factor contributing to these challenges. To ensure adequate quality control, it is essential that defects are continuously monitored in real time, with the provision of timely feedback to the SLM manufacturing system. Thus, a significant point of focus in this field of research is to explore the adjustment of process parameters based on defect monitoring information toward effectively controlling the occurrence of defects. In this literature review, we review the common defect types and their generation mechanisms in the SLM process, also providing a detailed description of the signals generated by the SLM process, such as acoustic, optical, and thermal signals, as well as methods for their monitoring. The signal data processing methods based on machine learning techniques have been summarized. In conclusion, this review provides a summary of the research conducted in this field and suggestions for future research directions for machine learning in the field of SLM intelligent monitoring.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"13 3","pages":"243-261"},"PeriodicalIF":2.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13247295/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148220850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Laser Sintering of Polyamide 12 Nanocomposites: Combined Effects of Plasma Treatment and Laser Energy.","authors":"Alaa Almansoori, Sameer F Hamad, Wasan Alkaron","doi":"10.1089/3dp.2024.0248","DOIUrl":"10.1089/3dp.2024.0248","url":null,"abstract":"<p><p>The current research studied the influence of plasma surface modification on the morphological and mechanical properties of 3D printed polyamide 12 composites. These composites were produced via laser sintering at three laser energies, 13, 17, and 21 W. Thus, the influence of the laser energies on the nanocomposites' characteristics was also considered. The surface characteristics of the reinforcing materials, untreated and plasma-treated organically modified nanoclay, were characterized using Scanning electron microscopy (SEM) and X-ray diffraction. Furthermore, SEM was also utilized to investigate the fractured surfaces of 3D printed parts made from untreated and plasma-treated nanoclay/polyamide 12 composites after testing for measuring tensile properties (ultimate stress, strain, and elastic modulus). Based on SEM observations, agglomerated sheeted structures were observed in untreated nanoclay. However, these were relatively avoided after plasma treatment, and a more uniform distribution of nanoclay layers on polyamide 12 was observed compared with the untreated ones. This resulted in an improved elastic modulus of plasma-treated nanoclay/polyamide 12 nanocomposites when compared with these results for pure polyamide 12 and untreated nanoclay/polyamide 12 nanocomposites. These results, therefore, provide evidence of a successful combination of laser sintering and plasma treatment.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"13 3","pages":"262-272"},"PeriodicalIF":2.5,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13247293/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148220917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical and Experimental Study on Improving the Dynamic Characteristics of Material Extrusion Additive Manufacturing Parts by Ultrasonic-Vibration Aided Machining.","authors":"Shijie Jiang, Chuangchuang Chen, Yang Zhan, Shuo Liu, Yuntao Zhan, Chunyu Zhao","doi":"10.1089/3dp.2023.0214","DOIUrl":"10.1089/3dp.2023.0214","url":null,"abstract":"<p><p>Material extrusion (ME) is one of the most widely used additive manufacturing technologies, which can directly produce parts with complex geometries. However, since the working environment is increasingly complex, the built parts inevitably have to be subjected to dynamic loads, and it is urgent to study their dynamic performances so as to determine their reliability. In addition, the layer-by-layer forming process makes the ME parts inferior to those fabricated by traditional methods in terms of mechanical properties. It is important to find an effective method to improve the parts' dynamic characteristics so that the reliability can be enhanced. To achieve these goals, the method of ultrasonic-vibration aided machining (UVAM) was proposed to improve the dynamic characteristics of polylactic acid ME parts in this paper, and the corresponding theoretical and experimental study was performed. Ordinary ME equipment was modified to an ultrasonic-vibrating one, by which the samples processed with and without UVAM utilized were prepared. With the modal test system, the dynamic characteristics of the samples were determined. Taking into account the influence of the porosity defects and ultrasonic vibration, the ME sample's dynamic model was then established based on the finite element method. Through the comparison between the predicted and measured results, the proposed model was validated, and it can accurately predict the ME plates' dynamic characteristics no matter processed with or without UVAM utilized. The results also showed that UVAM could significantly improve the ME plate's dynamic characteristics. With the increasing vibration amplitude or frequency, the samples' natural frequency and damping ratio would be increased, and the vibration response would be decreased. Compared to the three waveforms of ultrasonic vibration (sinusoidal, square, and triangle), the sinusoidal one has the best improvement effect.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"13 4","pages":"346-362"},"PeriodicalIF":2.5,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13428145/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148654883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Visualized Trends and Bibliometric Analysis in 3D Printing for Osteochondral Repair: A Comprehensive Research Study from 2010 to 2024.","authors":"Fuxin Wang, Zhixing Zhang, Yuhao Mu, Yu Xue, Qinghui Ji, Wei Wei","doi":"10.1089/3dp.2024.0203","DOIUrl":"10.1089/3dp.2024.0203","url":null,"abstract":"<p><p>This study provides a comprehensive bibliometric analysis of the literature on 3D printing for osteochondral repair and regeneration, aiming to explore the current research landscape, key emerging topics, and future trends in this field. English-language publications on 3D printing technology and osteochondral repair, published between 2010 and 2024, were retrieved from the Web of Science Core Collection database. The search, conducted on May 1, 2024, followed a structured strategy. Bibliometric analysis was performed on 287 scholarly articles using the Bibliometrix package in R, VOSviewer, and CiteSpace. The study demonstrates a steady increase in global research activity, as reflected by the rising annual and cumulative publication rates in this field. China and the United States dominate in international collaboration, publication output, and funding investment. Collaborative networks between authors, institutions, and countries have played a pivotal role in advancing the development of 3D printing technology for osteochondral repair. The journal <i>Biofabrication</i> serves as the leading platform for disseminating research findings. Wu Chengtie is identified as the most prolific author, with \"mesenchymal stem cell\" emerging as the most prominent keyword. Research to date has focused on various types of mesenchymal stem cells, 3D printing technologies, and osteogenic differentiation, while future studies are anticipated to prioritize growth factor delivery, 3D bioprinting, and interface tissue engineering. This analysis highlights the advantages, limitations, and future prospects of osteochondral repair, a field at the intersection of medicine and engineering. The findings provide valuable insights to guide researchers in further advancing this rapidly emerging area.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"13 2","pages":"206-224"},"PeriodicalIF":2.5,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13133486/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147935480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cognitive Nests: Nested Data-Driven Decision Support System in Regenerative Design from Biology to Ecology.","authors":"Parichehr Goodarzi, Farahbod Heidari, Katia Zolotovsky, Mohammadjavad Mahdavinejad","doi":"10.1089/3dp.2023.0331","DOIUrl":"10.1089/3dp.2023.0331","url":null,"abstract":"<p><p>Regenerative design lies on synergistic relationship between sociocultural and ecological systems, which can enable revolutionary boundaries for designing decision-making frameworks. Transitioning to regenerative design as a manifestation of systems thinking necessitates a fundamental shift from sustainable patterns and mechanistic design methodologies. At its core, regenerative design unlocks a holistic paradigm that fosters circular systems reliant on renewable resources, which can strive for equilibrium between creation and utilization. This framework goes beyond mere sustainability by actively engaging in the restoration and regeneration of its sources of energy and materials. It aspires to harness the inherent wisdom of nature, facilitating a comprehensive harmonious coexistence with environment. The integration of data-driven decision-making and regenerative paradigms can provide an insight for developing evidence-based solutions for strategic environmental and natural resource management through design practices. This short research presents a holistic data-driven and self-adaptive design strategy as the integrated problem-solver model under the imperatives of regenerative adaptive design and transfer knowledge system capable of the extensive range of applications from microscale to macroscale. The underlying idea proposes orientation on machine learning feedback loop mechanisms and nested coevolutionary loops embedded in an inclusive feedback loop frame, synergistically interfaced with the typologies of monitoring systems and intuitive datasets to problem-solve at the intersection of design, construction, and built environment. This design model can support designers, planners, and city managers in optimizing their decision-making process by relying on precise data-driven feedback in different scales of complex systems, from living bits to ecological living environments.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"12 2","pages":"192-198"},"PeriodicalIF":2.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038331/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144046157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D-Printed Mycelium Biocomposites: Method for 3D Printing and Growing Fungi-Based Composites.","authors":"Danli Luo, Junchao Yang, Nadya Peek","doi":"10.1089/3dp.2023.0342","DOIUrl":"https://doi.org/10.1089/3dp.2023.0342","url":null,"abstract":"<p><p>Despite recent advances in 3D printing and additive manufacturing, the main materials in rapid prototyping are derived from finite resources such as petroleum-based plastics. Researchers are developing alternatives to exhaustible and potentially environmentally harmful materials through biomaterials. Mycelium biocomposites are one promising area of inquiry; when mycelium decomposes biomass, it produces a composite biomaterial, which is fully compostable and has beneficial structural and hydrophobic properties. However, mold-based fabrication methods for biocomposites require tooling and limit the possible shapes. We introduce a novel method for directly 3D printing mycelium biocomposites without the need for molds or tooling. Our method comprises three main contributions: Mycofluid, a mycelium-inoculated paste that uses spent coffee grounds, a recycled biomass; Fungibot, a custom hardware system for 3D printing biopastes like Mycofluid; and a method for incubating mycelial growth within fresh 3D prints resulting in mycelium biocomposite parts. We illustrate our contributions through a series of objects showcasing our method and the material qualities of the parts. Notably, we demonstrate how living mycelium can fuse separate prints, enabling complex geometries that are otherwise challenging to 3D print as one part.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"12 2","pages":"98-111"},"PeriodicalIF":2.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038323/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing with Printed Responsive Biomaterials: A Review.","authors":"Laia Mogas-Soldevila, Katia Zolotovsky","doi":"10.1089/3dp.2024.0004","DOIUrl":"10.1089/3dp.2024.0004","url":null,"abstract":"<p><p>This review explores additive manufacturing (AM) strategies across disciplines for designing with responsive biomaterials and presents a vision of how printed responsive biomaterials (PRBs) can be integrated into everyday objects and buildings to enhance environmental and human health. Advancements in biomaterials science, biological materials manufacturing, synthetic biology, biomedical engineering, bio design, and living architecture are ushering in a new era characterized by multisensory interactions within everyday products and built environments. The material systems developed in recent research demonstrate the ability to interact with their environments through biological, chemical, or physical processes, yielding functionalities desirable in daily-use products. These include self-healing, health diagnostics, pathogen neutralization, adjustable stiffness, strain detection, threat visualization, shapeshifting, toxin trapping, stress correction, waste processing, and energy generation. Here we review examples of AM of biobased environmentally interactive materials using biopolymer composites, electrochemical and resistive devices, active molecules, bio sensors, living cells, spores, or cell-free sites, resulting in genetically active, and physical and chemical interactive systems. We highlight their robustness and evaluate their potential for scaling up into designs and architectures on Earth and beyond.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"12 2","pages":"155-168"},"PeriodicalIF":2.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038318/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144043168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward a Digital Design Framework for the Thermal Tunability of 3D Printed Envelopes.","authors":"Elena Petruzzi, Alexandros Tsamis, Chaitanya Ullal","doi":"10.1089/3dp.2023.0356","DOIUrl":"10.1089/3dp.2023.0356","url":null,"abstract":"<p><p>Large-scale extrusion-based additive manufacturing (AM) has emerged as a potential alternative for construction, addressing the challenges associated with the high carbon footprint of the building industry. Although AM enables the creation of intricate design geometries through controlled material deposition, providing innovative solution strategies for design construction, large-scale 3D printed structures are limited to a single homogeneous material, such as cement or clay, and their functionality is restricted to load-bearing formwork. Although still at a nascent stage for building construction, multimaterial additive manufacturing (MMAM) has emerged as a promising technology for the industry to overcome this limitation and reduce the embodied carbon of 3D printed structures by limiting the use of structural materials through topology optimization strategies. MMAM enables the fabrication of functionally graded materials (FGMs) by controlling the extrusion ratio between two or more distinct materials, resulting in building envelopes with multiple performance characteristics and functions. While research has focused on improving the structural performance of 3D-printed envelopes through MMAM, limited attention has been given to optimizing thermal performance and energy efficiency. An increasing interest in thermal energy storage technologies for buildings using the latent heat storage capacity of microencapsulated phase change materials (mPCMs) is related to the advantages of improving energy efficiency using materials that can absorb, store, and release heat when their temperature changes. To this end, this study proposes an FGM design-to-construction methodology for large-scale structures that optimizes the thermal performance of 3D-printed envelopes by locally tuning the distribution of heterogeneous mixes of clay and mPCMs during the AM process. The results of the digital simulations and physical tests show that the local optimization of mPCM and clay within the wall thickness according to the specific temperature differential can provide annual energy reductions compared with a homogeneously printed envelope without embedded mPCM.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"12 2","pages":"131-140"},"PeriodicalIF":2.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038320/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144058621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"To Grow a Building: Soil and Seeds 3D-Printing.","authors":"Nof Nathansohn, Elisheva Gillis, Gitit Linker, Noa Zermati, Adi Segal, Danny Freedman, Rebecca Hila Partook, Or Naim","doi":"10.1089/3dp.2023.0357","DOIUrl":"10.1089/3dp.2023.0357","url":null,"abstract":"<p><p>Imagine a world in which architecture will be 3D printed from living materials. That buildings will germinate, bloom, wither, produce new kinds of materials, and return back to the soil. This article introduces an innovative approach to sustainable architecture, through the utilization of 3D-printed structures crafted from locally sourced soil and plant seeds. After printing, the seeds germinate over time, forming load-bearing designs with interwoven root systems, which exhibit remarkable strength and resilience, reducing reliance on conventional construction materials. The research evaluates the mechanical properties of 3D-printed living structures through a set of material experiments to find a material combination that will allow maximum growth within 3D-printed architectural scale objects. The successful pilot project demonstrated their strength and capacity to support plant growth. The study also addresses the esthetic, cultural, and social dimensions of this novel fabrication technique, offering personalized, native plant-based patterns, and fostering community engagement. In conclusion, this research underscores the transformative potential of 3D-printed root-built structures as a sustainable architectural solution. By harnessing local soil and plant roots, these living constructions offer an eco-friendly alternative to conventional materials, with diverse environmental and social benefits. This study contributes to the evolving knowledge base of eco-conscious building practices, encouraging further exploration and adoption of nature-based solutions in architecture. With ongoing development, root-built buildings hold the promise of revolutionizing design, construction, and habitation, promoting a harmonious coexistence between humans and the natural environment.</p>","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":"12 2","pages":"77-87"},"PeriodicalIF":2.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038324/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144062607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}