3D Printing and Additive Manufacturing最新文献_第7页

3D Printing to Enable Self-Breathing Fuel Cells. 3D打印可实现自呼吸燃料电池

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2021.0303

Prabal Sapkota, Paul Brockbank, Kondo-Francois Aguey-Zinsou

{"title":"3D Printing to Enable Self-Breathing Fuel Cells.","authors":"Prabal Sapkota, Paul Brockbank, Kondo-Francois Aguey-Zinsou","doi":"10.1089/3dp.2021.0303","DOIUrl":"10.1089/3dp.2021.0303","url":null,"abstract":"Fuel cells rely on an effective distribution of the reactant gases and removal of the byproduct, that is, water. In this context, bipolar plates are the critical component for the effective management of these fluids, as these dictate to some extent the overall performance of polymer electrolyte membrane fuel cells (PEMFCs). Better bipolar plates can lead to a significant reduction in size, cost, and weight of fuel cells. Herein, we report on the use of photoresin 3D printing to fabricate alternative bipolar plates for operating self-breathing fuel cell stacks. The resulting stack made of 12 self-breathing PEMFCs achieved a power density of 0.3 W/cm2 under ambient conditions (25°C and 20% relative humidity), which is superior to the performance of previously reported self-breathing cells. The problems associated with hydrogen leaks and water flooding could be resolved by taking advantage of 3D printing to precisely fabricate monoblock shapes. The approach of 3D printing reported in this study demonstrates a new path in fuel cell manufacturing for small and portable applications where an important reduction in size and cost is important.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880644/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46753756","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

Evaluation of the Morphological Effects of Hydroxyapatite Nanoparticles on the Rheological Properties and Printability of Hydroxyapatite/Polycaprolactone Nanocomposite Inks and Final Scaffold Features. 羟基磷灰石纳米颗粒形态对羟基磷灰石/聚己内酯纳米复合油墨流变性和可印刷性的影响及最终支架特性的评价

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2021.0292

Mansure Kazemi, Motahareh Mirzadeh, Hasti Esmaeili, Elahe Kazemi, Mohammad Rafienia, Seyed Ali Poursamar

{"title":"Evaluation of the Morphological Effects of Hydroxyapatite Nanoparticles on the Rheological Properties and Printability of Hydroxyapatite/Polycaprolactone Nanocomposite Inks and Final Scaffold Features.","authors":"Mansure Kazemi, Motahareh Mirzadeh, Hasti Esmaeili, Elahe Kazemi, Mohammad Rafienia, Seyed Ali Poursamar","doi":"10.1089/3dp.2021.0292","DOIUrl":"10.1089/3dp.2021.0292","url":null,"abstract":"This study is focused on the importance of nanohydroxyapatite (nHA) particle morphology with the same particle size range on the rheological behavior of polycaprolactone (PCL) composite ink with nHA as a promising candidate for additive manufacturing technologies. Two different physiologic-like nHA morphologies, that is, plate and rod shape, with particles size less than 100 nm were used. nHA powders were well characterized and the printing inks were prepared by adding the different ratios of nHA powders to 50% w/v of PCL solution (nHA/PCL: 35/65, 45/55, 55/45, and 65/35 w/w%). Subsequently, the influence of nHA particle morphology and concentration on the printability and rheological properties of composite inks was investigated. HA nanopowder analysis revealed significant differences in their microstructural properties, which affected remarkably the composite ink printability in several ways. For instance, adding up to 65% w/w of plate-like nHA to the PCL solution was possible, while nanorod HA could not be added above 45% w/w. The printed constructs were successfully fabricated using the extrusion-based printing method and had a porous structure with interconnected pores. Total porosity and surface area increased with nHA content due to the improved fiber stability following deposition of material ink. Consequently, degradation rate and bioactivity increased, while compressive properties decreased. While nanorod HA particles had a more significant impact on the mechanical strength than plate-like morphology, the latter showed less crystalline order, which makes them more bioactive than nanorod HA. It is therefore important to note that the nHA microstructure broadly affects the printability of printing ink and should be considered according to the intended biomedical applications.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880679/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47184209","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

Facile Adaptation of a Fused Deposition Modeling 3D Printer to Motionless Printing through Programmable Electric Relay: Discretized Modeling and Experiments. 通过可编程继电器的熔融沉积建模3D打印机对静止打印的简单适应:离散建模和实验

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2022.0062

Sanjana Sham Sunder Bharadwaj, Chia-Yi Lin, Mounica J Divvela, Yong Lak Joo

{"title":"Facile Adaptation of a Fused Deposition Modeling 3D Printer to Motionless Printing through Programmable Electric Relay: Discretized Modeling and Experiments.","authors":"Sanjana Sham Sunder Bharadwaj, Chia-Yi Lin, Mounica J Divvela, Yong Lak Joo","doi":"10.1089/3dp.2022.0062","DOIUrl":"10.1089/3dp.2022.0062","url":null,"abstract":"In this study, a fused deposition modeling 3D printer is modified into a motionless printer, which has the potential to print patterns in a noiseless manner possibly with improved resolution and in less delay time by eliminating the movement of nozzle or collector. In this motionless 3D printer, both nozzle and collector are fixed, whereas the extruded polymer melt is driven by high-voltage switching points on the collector. By this approach, simple 3D patterns such as multilayer circles, squares, and walls have been printed using two polymer melts with different rheological properties, high-temperature polylactic acid and acrylonitrile butadiene styrene. Furthermore, a discretized, nonisothermal bead and spring model is developed to probe printing patterns. The effect of parameters, such as number of conducting points, switching time, voltage and material properties on the accuracy of the printed simple 3D patterns, are thoroughly studied, and we demonstrated that various fiber collection patterns obtained from the experiments are favorably compared with the simulation results.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42835648","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

The Mechanical Properties of 3D-Printed Polylactic Acid/Polyethylene Terephthalate Glycol Multi-Material Structures Manufactured by Material Extrusion. 材料挤压制备三维打印聚乳酸/聚对苯二甲酸乙二醇多材料结构的力学性能

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2021.0321

Emre Demir, İnal Kaan Duygun, Ayşe Bedeloğlu

{"title":"The Mechanical Properties of 3D-Printed Polylactic Acid/Polyethylene Terephthalate Glycol Multi-Material Structures Manufactured by Material Extrusion.","authors":"Emre Demir, İnal Kaan Duygun, Ayşe Bedeloğlu","doi":"10.1089/3dp.2021.0321","DOIUrl":"10.1089/3dp.2021.0321","url":null,"abstract":"The mechanical properties of polylactic acid (PLA), polyethylene terephthalate glycol (PETG), and PLA/PETG structures manufactured using the multi-material additive manufacturing (MMAM) method were studied in this work. Material extrusion additive manufacturing was used to print PLA/PETG samples with various PLA and PETG layer numbers. By varying the top and bottom layer numbers of two thermoplastics, the effect of layer number on the mechanical properties of 3D-printed structures was investigated. The chemical and thermal characteristics of PLA and PETG were investigated using Fourier transform infrared spectroscopy and differential scanning calorimetry. Tensile and flexural strength of 3D-printed PLA, PETG, and PLA/PETG samples were determined using tensile and three-point bending tests. The fracture surfaces of the samples were evaluated using optical microscopy. The results indicated that multi-material part containing 13 layers of PLA and 3 layers of PETG exhibited the highest ultimate tensile strength (65.4 MPa) and a good flexural strength (91.4 MPa). MMAM was discovered to be a viable way for producing PLA/PETG materials with great mechanical performance.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880662/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46550372","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

Influence of Addition of Ti Particles and Processing Condition on Microstructure and Properties of Selectively Laser-Melted Invar 36 Alloy. Ti颗粒添加量及加工条件对选择性激光熔化Invar 36合金组织和性能的影响

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2022.0016

Huanhuan Liu, Xingyu Pan, Pengyue Sun, Yanjun Liu, Chunlei Qiu

{"title":"Influence of Addition of Ti Particles and Processing Condition on Microstructure and Properties of Selectively Laser-Melted Invar 36 Alloy.","authors":"Huanhuan Liu, Xingyu Pan, Pengyue Sun, Yanjun Liu, Chunlei Qiu","doi":"10.1089/3dp.2022.0016","DOIUrl":"10.1089/3dp.2022.0016","url":null,"abstract":"Invar 36 exhibits extremely low thermal expansion coefficients at low temperatures but also low yield strength (YS), which greatly restricts its application as a structural material. In this study, a small fraction of pure titanium powder particles was added into Invar 36 by powder mixing and selective laser melting (SLM) with the aim of further improving tensile strengths of Invar 36. It was found that increased laser power led to increased grain size and to slight decrease in YS in Invar 36. During SLM, amorphous SiO2 nanoparticles were formed and homogeneously distributed in Invar 36. With the addition of 2 at% Ti powder particles, grains became larger and the crystallographic texture along <001> and <111> increased to some extent. Moreover, the bottom of solidified melt pools was segregated with Ti while the matrix was homogeneously decorated by a great number of nano-sized spherical Ti2O3 particles. These particles were found to have effectively impeded dislocation motion during plastic deformation, leading to significant improvement in 0.2% YS and ultimate tensile strength. The above precipitation led to consumption of a small amount of Ni from the matrix, which caused a minor compromise in thermal expansion properties. Nonetheless, the newly synthesized Invar 36-Ti alloy still exhibits low thermal expansion coefficients at low temperatures and remarkably enhanced tensile strengths.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880669/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43187245","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

A Novel Framework of Developing a Predictive Model for Powder Bed Fusion Process. 粉末床熔合过程预测模型的新框架

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2021.0255

Mallikharjun Marrey, Ehsan Malekipour, Hazim El-Mounayri, Eric J Faierson, Mangilal Agarwal

{"title":"A Novel Framework of Developing a Predictive Model for Powder Bed Fusion Process.","authors":"Mallikharjun Marrey, Ehsan Malekipour, Hazim El-Mounayri, Eric J Faierson, Mangilal Agarwal","doi":"10.1089/3dp.2021.0255","DOIUrl":"10.1089/3dp.2021.0255","url":null,"abstract":"The powder bed fusion (PBF) process is a metal additive manufacturing process, which can build parts with any complexity from a wide range of metallic materials. PBF process research has predominantly focused on the impact of only a few parameters on product properties due to the lack of a systematic approach for predictive modeling of a large set of process parameters simultaneously. The pivotal challenges regarding this process require a quantitative approach for mapping the material properties and process parameters onto the ultimate quality; this will then enable the optimization of those parameters. In this study, we propose a two-phase framework for studying the process parameters and developing a predictive model for 316L stainless steel material. We also discuss the correlation between process parameters that is, laser specifications and mechanical properties, and how to obtain an optimum range of volumetric energy density for producing parts with high density (>99%), as well as better ultimate mechanical properties. In this article, we introduce and test an innovative approach for developing AM predictive models, with a relatively low error percentage (i.e., around 10%), which are used for process parameter selection in accordance with user or manufacturer part performance requirements. These models are based on techniques such as support vector regression, random forest regression, and neural network. It is shown that the intelligent selection of process parameters using these models can achieve a high density of up to 99.31% with uniform microstructure, which improves hardness, impact strength, and other mechanical properties.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880639/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48032373","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

Improved Productivity with Multilaser Rotary Powder Bed Fusion Additive Manufacturing. 多激光旋转粉末床融合增材制造提高生产率

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2022.0288

Peter Wang, Gordon Robertson, Brian T Gibson, Chris M Fancher, Jay Reynolds, Michael Borish, Jesus R Cruz, Phillip Chesser, Benjamin Stump, Amiee Jackson, Eric MacDonald

{"title":"Improved Productivity with Multilaser Rotary Powder Bed Fusion Additive Manufacturing.","authors":"Peter Wang, Gordon Robertson, Brian T Gibson, Chris M Fancher, Jay Reynolds, Michael Borish, Jesus R Cruz, Phillip Chesser, Benjamin Stump, Amiee Jackson, Eric MacDonald","doi":"10.1089/3dp.2022.0288","DOIUrl":"10.1089/3dp.2022.0288","url":null,"abstract":"Laser powder bed fusion (LPBF) enables the fabrication of intricate, geometrically complex structures with a sufficiently fine surface finish for many engineering applications with a diversity of available feedstock metals. However, the production rate of LPBF systems is not well suited for mass production in comparison to traditional manufacturing methods. LPBF systems measure their deposition rates in 100's of grams per hour, while other processes measure in kilograms per hour or even in the case of processes such as forming, stamping, and casting, 100's of kilograms per hour. To be widely adopted in industry for mass production, LPBF requires a new scalable architecture that enables many orders of magnitude improvement in deposition rate, while maintaining the geometry freedom of additive manufacturing. This article explores concepts that could achieve as much as four orders of magnitude increase in the production rate through the application of (1) rotary table kinematic arrangements; (2) a dramatic number of simultaneously operating lasers; (3) reductions of laser optic size; (4) improved scanning techniques; and (5) an optimization of toroidal build plate size. To theoretically demonstrate the possibilities of production improvements, a productivity analysis is proposed for synchronous reluctance motors with relevance to the electric vehicle industry, given the recent increase in the diversity of printable soft magnetic alloys. The analysis provides insights into the impact of the architecture and process parameters necessary to optimize rotary powder bed fusion for mass production.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880638/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42002852","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

Electron Beam Powder Bed Fusion of Ti-48Al-2Cr-2Nb Open Porous Scaffold for Biomedical Applications: Process Parameters, Adhesion, and Proliferation of NIH-3T3 Cells. 用于生物医学应用的Ti-48Al-2Cr-2Nb开放多孔支架的电子束粉末床融合:工艺参数，粘附和NIH-3T3细胞的增殖

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2022.0108

Manuela Galati, Maria Laura Gatto, Nora Bloise, Lorenzo Fassina, Abdollah Saboori, Livia Visai, Paolo Mengucci, Luca Iuliano

引用次数: 0

Bibliometric Analysis-Based Review of Fused Deposition Modeling 3D Printing Method (1994-2020). 基于文献计量分析的熔融沉积建模3D打印方法综述（1994-2020）

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2021.0046

Rishi Parvanda, Prateek Kala, Varun Sharma

引用次数: 0

Bone Tissue Engineering Scaffolds: Materials and Methods. 骨组织工程支架：材料与方法》。

IF 3.1 4区工程技术

3D Printing and Additive Manufacturing Pub Date : 2024-02-01 Epub Date: 2024-02-15 DOI: 10.1089/3dp.2022.0216

Shreeprasad S Manohar, Chinmoy Das, Vikramjit Kakati

{"title":"Bone Tissue Engineering Scaffolds: Materials and Methods.","authors":"Shreeprasad S Manohar, Chinmoy Das, Vikramjit Kakati","doi":"10.1089/3dp.2022.0216","DOIUrl":"10.1089/3dp.2022.0216","url":null,"abstract":"The wide development in biomedical, regenerative medicine, and surgical techniques has ensured that new technologies are developed to improve patient-specific treatment and care. Tissue engineering is a special field in biomedical engineering that works toward cell development using scaffolds. Bone tissue engineering is a separate branch of tissue engineering, in which the construction of bone, functionalities of bone, and bone tissue regeneration are studied in detail to repair or regenerate new functional bone tissues. In India alone, people suffering from bone diseases are extensive in numbers. Almost 15% to 20% of the population suffers from osteoporosis. Bone scaffolds are proving to be an excellent solution for osseous abnormalities or defect treatment. Scaffolds are three dimensional (3D) and mostly porous structures created to enhance new tissue growth. Bone scaffolds are specially designed to promote osteoinductive cell growth, expansion, and migration on their surface. This review article aims to provide an overview of possible bone scaffolding materials in practice, different 3D techniques to fabricate these scaffolds, and effective bone scaffold characteristics targeted by researchers to fabricate tissue-engineered bone scaffolds.","PeriodicalId":54341,"journal":{"name":"3D Printing and Additive Manufacturing","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10880649/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934236","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