3D Printing and Additive Manufacturing最新文献_第10页

Rheological Analysis of 3D Printed Elements of Acrylonitrile Butadiene and Styrene Material Using Multiparameter Ideal Body Models. 基于多参数理想体模型的3D打印丙烯腈-丁二烯-苯乙烯材料元件流变学分析

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0298

Wiktor Szot

{"title":"Rheological Analysis of 3D Printed Elements of Acrylonitrile Butadiene and Styrene Material Using Multiparameter Ideal Body Models.","authors":"Wiktor Szot","doi":"10.1089/3dp.2022.0298","DOIUrl":"10.1089/3dp.2022.0298","url":null,"abstract":"The growing application of additive technologies in various industrial fields determines the undertaking of research in this direction. The need to study mechanical properties, including rheological properties, is necessitated by the use of additively manufactured models as utility models. Furthermore, the values of mechanical properties are affected by the technological parameters of 3D printing. One of the popular engineering materials used in 3D printing is acrylonitrile butadiene and styrene, commonly known by the abbreviated name ABS, which is quite hard and resistant to high temperatures. This article presents a study of the rheological properties of ABS material using multiparameter ideal body models. Two rheological phenomena of stress relaxation and creep were evaluated. The effects of two technological parameters, layer height and printing direction, on the resulting values of elastic moduli and dynamic viscosity coefficients were also evaluated. The elastic moduli and dynamic viscosity coefficients were calculated using the Maxwell-Wiechert and Kelvin-Voight models. The study showed the effect of layer height on rheological properties. Moreover, very good fit was obtained between the multiparameter rheological models and the experimental curves, which are shown by the average value of <math><mover><mrow><msup><mrow><mi>χ</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow><mo>¯</mo></mover><mo>=</mo><mn>0</mn><mo>.</mo><mn>001</mn></math> and <math><mover><mrow><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow><mo>¯</mo></mover><mo>=</mo><mn>0</mn><mo>.</mo><mn>9991</mn></math>. The presented research can be used by designers to design machine parts or car or aircraft components. Moreover, research expands knowledge of the mechanical properties of additively manufactured parts.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11057530/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42894969","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}

引用次数: 0

In Vitro Evaluation of Pore Size Graded Bone Scaffolds with Different Material Composition. 不同材料组成孔径梯度骨支架的体外评价

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0138

Evangelos Daskalakis, Boyang Huang, Mohamed H Hassan, Abdalla M Omar, Cian Vyas, Anil A Acar, Ali Fallah, Glen Cooper, Andrew Weightman, Gordon Blunn, Bahattin Koç, Paulo Bartolo

{"title":"In Vitro Evaluation of Pore Size Graded Bone Scaffolds with Different Material Composition.","authors":"Evangelos Daskalakis, Boyang Huang, Mohamed H Hassan, Abdalla M Omar, Cian Vyas, Anil A Acar, Ali Fallah, Glen Cooper, Andrew Weightman, Gordon Blunn, Bahattin Koç, Paulo Bartolo","doi":"10.1089/3dp.2022.0138","DOIUrl":"10.1089/3dp.2022.0138","url":null,"abstract":"The demand for biomimetic and biocompatible scaffolds in equivalence of structure and material composition for the regeneration of bone tissue is relevantly high. This article is investigating a novel three-dimensional (3D) printed porous structure called bone bricks with a gradient pore size mimicking the structure of the bone tissue. Poly-ɛ-caprolactone (PCL) combined with ceramics such as hydroxyapatite (HA), β-tricalcium phosphate (TCP), and bioglass 45S5 were successfully mixed using a melt blending method and fabricated with the use of screw-assisted extrusion-based additive manufacturing system. Bone bricks containing the same material concentration (20 wt%) were biologically characterized through proliferation and differentiation tests. Scanning electron microscopy (SEM) was used to investigate the morphology of cells on the surface of bone bricks, whereas energy dispersive X-ray (EDX) spectroscopy was used to investigate the element composition on the surface of the bone bricks. Confocal imaging was used to investigate the number of differentiated cells on the surface of bone bricks. Proliferation results showed that bone bricks containing PCL/HA content are presenting higher proliferation properties, whereas differentiation results showed that bone bricks containing PCL/Bioglass 45S5 are presenting higher differentiation properties. Confocal imaging results showed that bone bricks containing PCL/Bioglass 45S5 are presenting a higher number of differentiated cells on their surface compared with the other material contents.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11057695/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41258953","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}

引用次数: 0

3D Printing onto Textiles: A Systematic Analysis of the Adhesion Studies. 纺织品3D打印：附着力研究的系统分析

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0100

Diana Popescu, Cătălin Gheorghe Amza

{"title":"3D Printing onto Textiles: A Systematic Analysis of the Adhesion Studies.","authors":"Diana Popescu, Cătălin Gheorghe Amza","doi":"10.1089/3dp.2022.0100","DOIUrl":"10.1089/3dp.2022.0100","url":null,"abstract":"The article reviews the literature focused on investigating the adhesion strength between the 3D-printed polymers and the textile substrates, and its dependence on different factors related to materials, printing parameters, and fabrics type and structure. 3D printing (3DP) onto textiles is a domain in expansion as it allows developing products with new functionalities by gathering the advantages of design freedom, tailor-fit, comfort, variety, and mass customization provided by both the textiles and the additive manufacturing technology. In this context, it becomes important to document and understand how the adherence of different 3D-printed molten polymer to diverse textiles substrates can be improved for obtaining products more resistant to specific conditions, such as washing, wear, or ironing. Following a systematic search of electronic databases, 28 articles were selected for the full-text read and data extraction. The summarized information was grouped per 3DP material and analyzed factors, and then discussed in terms of variables influencing the adherence, including pretreatments and post-treatments applied to fabrics or 3D-printed onto fabrics specimens and objects. A case study of a customized polylactic acid-cotton-elastane wrist-hand orthosis is also presented to exemplify the modality in which the information synthetized in this review can be used in the development process of a new product.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11057686/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46576031","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}

引用次数: 0

Effects of Immersion on Knowledge Gain and Cognitive Load in Additive Manufacturing Process Education. 沉浸对增材制造工艺教育中知识获取和认知负荷的影响

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0180

Jayant Mathur, Scarlett R Miller, Timothy W Simpson, Nicholas A Meisel

{"title":"Effects of Immersion on Knowledge Gain and Cognitive Load in Additive Manufacturing Process Education.","authors":"Jayant Mathur, Scarlett R Miller, Timothy W Simpson, Nicholas A Meisel","doi":"10.1089/3dp.2022.0180","DOIUrl":"10.1089/3dp.2022.0180","url":null,"abstract":"Although the additive manufacturing (AM) market continues to grow, industries face barriers to AM adoption due to a shortage of skilled designers in the workforce that can apply AM effectively to meet this demand. This shortage is attributed to the high cost and infrastructural requirements of introducing high- barrier-to-entry AM processes such as powder bed fusion (PBF) into in-person learning environments. To meet the demands for a skilled AM workforce, it is important to explore other mediums of AM education, such as computer-aided instruction (CAI) and virtual reality (VR), which can increase access to hands-on learning experiences for inaccessible AM processes. However, limited work compares virtual and physical AM instruction or explores how the differences in immersion and presence between mediums can affect the knowledge gained and the mental effort exerted when learning about different AM processes. To address this gap in the literature, this research evaluates the use of CAI, VR, and in-person instruction in AM process education when learning about material extrusion (ME) and PBF. Our findings show that the differences in immersion and presence between CAI, VR, and in-person instruction do not have a statistically significant effect when learning about ME, but do have a significant effect when learning about PBF. Specifically, we found that VR generally yields equivalent effects in knowledge gain and cognitive load to in-person PBF education while offering advantages in both metrics over CAI learning. The findings from this work thus have significant implications for using VR as an alternative to in-person training to improve designer development in process-centric AM education of typically high-barrier-to-entry AM processes.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11057536/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47582663","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}

引用次数: 0

Soft Self-Regulating Heating Elements for Thermoplastic Elastomer-Based Electronic Skin Applications. 用于基于热塑性弹性体的电子皮肤应用的软自调节加热元件

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0242

Antonia Georgopoulou, Pascal Diethelm, Marius Wagner, Ralph Spolenak, Frank Clemens

{"title":"Soft Self-Regulating Heating Elements for Thermoplastic Elastomer-Based Electronic Skin Applications.","authors":"Antonia Georgopoulou, Pascal Diethelm, Marius Wagner, Ralph Spolenak, Frank Clemens","doi":"10.1089/3dp.2022.0242","DOIUrl":"10.1089/3dp.2022.0242","url":null,"abstract":"Resistive heating elements can be of particular interest for many applications, such as e-skin. In this study, soft heating elements were developed by combining thermoplastic polyurethane (TPU) with carbon black. In contrast to previous studies on thermoplastic polymer-based thermistors, the heating elements could endure elongations above 100%. Due to the high melting point of the TPU and the carbon filler, the thermistors could be heated up to 180°C without significant deformation. The heating elements were extruded on TPU substrates using material extrusion additive manufacturing in one-step process. Self-regulating behavior to control the maximum temperature was achieved with the application of two different voltages (20 and 25 V) and different current thresholds, between 100 and 800 mA. The heating performance was adjusted by changing the geometry of the sensing elements; an increase in cross section resulted in a lower current density and lower temperature. For the heating elements, variation of the additive manufacturing parameters such as offset, layer height, nozzle speed, and extrusion multiplier resulted in a different width/height aspect ratio of the cross section of the extruded lines, affecting the initial resistivity of the thermistor. Orientation of the carbon filler during extrusion process is one reason for the small change of the longitudinal conductivity of the heating elements. The resulting skin with the integrated heating elements allowed the possibility to perform the in situ heating for the localized healing of structural damage, while maintaining the softness required for the application of soft robotic electronic skin.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11057689/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45359310","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}

引用次数: 0

Carbon-Based Piezoresistive Polymer Nanocomposites by Extrusion Additive Manufacturing: Process, Material Design, and Current Progress. 碳基压阻性聚合物纳米复合材料的挤出增材制造:工艺、材料设计和当前进展

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0153

James D Banks, Anahita Emami

引用次数: 0

Surface Finish Analysis of Gradient Voltage Electrochemical Polishing of 316L Stainless Steel Parts Forming by Laser Powder Bed Fusion. 激光粉末床熔合316L不锈钢零件梯度电压电化学抛光表面光洁度分析

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0275

Wenzheng Wu, Jiaqi Wang, Qingping Liu, Xuechao Li, Yiming Zhou, Aodu Zheng, Luquan Ren, Guiwei Li

{"title":"Surface Finish Analysis of Gradient Voltage Electrochemical Polishing of 316L Stainless Steel Parts Forming by Laser Powder Bed Fusion.","authors":"Wenzheng Wu, Jiaqi Wang, Qingping Liu, Xuechao Li, Yiming Zhou, Aodu Zheng, Luquan Ren, Guiwei Li","doi":"10.1089/3dp.2022.0275","DOIUrl":"10.1089/3dp.2022.0275","url":null,"abstract":"Laser powder bed fusion (LPBF) of complex-structure 316L stainless steel (316L ss) parts has a wide application prospects in aerospace, biomedical, and defense industry fields. However, the surface roughness (Ra) of the LPBF sample is unsatisfactory due to the process characteristics of layer-by-layer selective melting and cumulative forming, which limits its applications in the engineering field. Herein, a gradient voltage electrochemical polishing strategy is proposed based on the characteristics of electrochemical polishing technology, which can polish complex structures. The mechanisms of polishing process parameters and polishing strategy on the surface finish of LPBF parts are investigated. The gradient voltage polishing strategy is extended to complex structures, and the Ra of the inner surfaces of square and round tubes are successfully reduced to about 1 μm. The gradient electrochemical polishing process for surface finish post-treatment of LPBF parts can broaden the engineering applications of complex-structure metal parts.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11057523/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43529267","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}

引用次数: 0

Direct Fabrication of Microcantilever Structures with High Shape Accuracy Using Projection-Based Stereolithography. 基于投影的立体光刻直接制造高精度微悬臂结构

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0236

Zhongwei Yu, Xinghong Deng, Jing Qiao, Dekai Zhou, Longqiu Li

{"title":"Direct Fabrication of Microcantilever Structures with High Shape Accuracy Using Projection-Based Stereolithography.","authors":"Zhongwei Yu, Xinghong Deng, Jing Qiao, Dekai Zhou, Longqiu Li","doi":"10.1089/3dp.2022.0236","DOIUrl":"10.1089/3dp.2022.0236","url":null,"abstract":"Microcantilever structures such as microgears play an important role in precision mechanisms, where highly accurate cantilever characteristics guarantee the reliable function of these structures. Projection-based stereolithography (PSL) technology is widely used to fabricate sophisticated microstructures owing to its high precision and remarkable efficiency, and plenty of works have been done to improve the precision of structures with macroscale. However, the shape accuracy of microcantilever structures fabricated through PSL process is always neglected, which severely hinders its application in precision mechanisms. In this work, we investigated the influence of major factors on the shape accuracy of microcantilever structures in PSL process through orthogonal tests. Different resin materials were tested to investigate the influence of material properties. Printing experiments showed that for a given PSL system, microcantilever structures with confined size could be directly and accurately manufactured using a set of optimized processing parameters, which dramatically speed up the production process and effectively improved the reliability of microcantilevers. This work provides a comprehensive understanding of the capability of PSL to fabricate microcantilever structures and guides the manufacturing processes of micromechanisms with cantilever features, which effectually promotes the industrial application of PSL technology.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11057694/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45707644","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}

引用次数: 0

Corrosion Performance of Wire Arc Additive Manufacturing of Stainless Steel: A Brief Critical Assessment. 不锈钢丝弧增材制造的腐蚀性能:简要的临界评价

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-04-01 Epub Date: 2024-04-16 DOI: 10.1089/3dp.2022.0253

Babatunde Olamide Omiyale, Ikeoluwa Ireoluwa Ogedengbe, Temitope Olumide Olugbade, Peter Kayode Farayibi

引用次数: 0

Deep Learning-Based Super Resolution Applied to Finite Element Analysis of Fused Deposition Modeling 3D Printing 基于深度学习的超分辨率应用于熔融沉积建模三维打印的有限元分析

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-03-26 DOI: 10.1089/3dp.2023.0191

Yi Zhang, E. Freeman, James T. Stinson, Guillermo A. Riveros

引用次数: 0