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Binder Jetting

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https://www.readbyqxmd.com/read/30314331/mechanical-analysis-of-ceramic-polymer-composite-with-mesh-type-lightweight-design-using-binder-jet-3d-printing
#1
Dong-Hyun Kim, Jinwoo Lee, Jinju Bae, Sungbum Park, Jihwan Choi, Jeong Hun Lee, Eoksoo Kim
3D printing technology has recently been highlighted as an innovative manufacturing process. Among various 3D printing methods, binder jetting (BJ) 3D printing is particularly known as technology used to produce the complex sand mold quickly for a casting process. However, high manufacturing costs, due to its expensive materials, need to be lowered for more industrial applications of 3D printing. In this study, we investigated mechanical properties of sand molds with a lightweight structure for low material consumption and short process time...
October 11, 2018: Materials
https://www.readbyqxmd.com/read/30225318/data-related-to-the-sinter-structure-analysis-of-titanium-structures-fabricated-via-binder-jetting-additive-manufacturing
#2
Evan Wheat, Mihaela Vlasea, James Hinebaugh, Craig Metcalfe
The adoption of metal binder jetting additive manufacturing (AM) for functional parts relies on a deep understanding between the materials, the design aspects, the additive manufacturing process and sintering. This work focuses on the relationship between sintering theory and process outcomes. The data included in this article provides additional supporting information on the authors' recent publication (Wheat et al., 2018 [1]) on the sinter structure analysis of commercially pure titanium parts manufactured using powder bed binder jetting additive manufacturing...
October 2018: Data in Brief
https://www.readbyqxmd.com/read/30184687/integration-of-pressure-sensitive-paint-with-persistent-phosphor-a-light-charged-pressure-sensing-system
#3
Di Peng, Zhe Zhong, Tao Cai, Songtao Guo, Xiaofeng Zhao, Yingzheng Liu
A novel pressure-sensitive paint has been developed by mixing phosphor Sr4 Al14 O25 :Eu,Dy with pressure-sensitive luminophore PtTFPP in a polyethylene binder. The phosphor particles served as hosts for PtTFPP molecules while providing excitation light via their bright blue/green luminescence. The unique long afterglow of Sr4 Al14 O25 :Eu,Dy allows the coating to be charged by a light source (UV-LED or even sunlight) in advance, and then the luminescent signals can be collected by using a color camera for pressure measurement (without an external light source)...
August 2018: Review of Scientific Instruments
https://www.readbyqxmd.com/read/30181022/3d-printed-composite-for-simulating-thermal-and-mechanical-responses-of-the-cortical-bone-in-orthopaedic-surgery
#4
Bruce L Tai, Yi-Tang Kao, Nolan Payne, Yihao Zheng, Lei Chen, Albert J Shih
Synthetic bones made of polyurethane (PU) foams or glass-fiber reinforced epoxy are often used in surgical training, planning, and tool analysis, but these materials cannot be 3D printed for a patient-specific design. This paper introduces a new type of bone-mimicking material made by the binder jetting technology and a post-strengthening process with epoxy, namely 3D polymer-infiltrated composite (3DPIC). 3DPIC has been previously evaluated by surgeons as a proper alternative to commercial synthetic bones, but no quantitative testing data is available...
September 1, 2018: Medical Engineering & Physics
https://www.readbyqxmd.com/read/30177161/selective-recrystallization-of-cellulose-composite-powders-and-microstructure-creation-through-3d-binder-jetting
#5
Sonia Holland, Chris Tuck, Tim Foster
Binder jetting is an additive manufacturing technique in which powdered material is sequentially laid down and printed on by an ink binder, in a selective manner, to form a 3D object. Unfortunately work in this area relevant to food materials is largely unpublished, however a typical application of this technique is sugar powder bound by a water and alcohol based ink with optional colour or flavour demonstrated by commercial ventures. In this work we demonstrate the use of a small scale powder layering device under an ink jet printer to test prototype powders prior to producing quantities typically used in commercially available binder jetting machines...
November 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/30129183/technical-note-the-use-of-3d-printing-in-dental-anthropology-collections
#6
Luca Fiorenza, Robin Yong, Sarbin Ranjitkar, Toby Hughes, Michelle Quayle, Paul G McMenamin, John Kaidonis, Grant C Townsend, Justin W Adams
OBJECTIVES: Rapid prototyping (RP) technology is becoming more affordable, faster, and is now capable of building models with a high resolution and accuracy. Due to technological limitations, 3D printing in biological anthropology has been mostly limited to museum displays and forensic reconstructions. In this study, we compared the accuracy of different 3D printers to establish whether RP can be used effectively to reproduce anthropological dental collections, potentially replacing access to oftentimes fragile and irreplaceable original material...
August 20, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/30126149/fused-filament-fabrication-of-small-ceramic-components
#7
Dorit Nötzel, Ralf Eickhoff, Thomas Hanemann
With respect to rapid prototyping of ceramic components, there are known only a few processes (stereo lithography, binder jetting). In this work, a new process chain is described in detail, showing that ceramics can be printed in a very cost-efficient way. We developed a ceramic⁻polymer composite as filament material that can be printed on a low-cost fused filament fabrication (FFF) desktop printer, even with very small nozzle sizes enabling very small geometric feature sizes. The thermal post-processing, with debinding and sintering, is very close to the ceramic injection molding (CIM) process chain...
August 17, 2018: Materials
https://www.readbyqxmd.com/read/29968575/the-effect-of-inkjetted-nanoparticles-on-metal-part-properties-in-binder-jetting-additive-manufacturing
#8
Yun Bai, Christopher B Williams
Binder jetting AM has been used to fabricate metal parts by first jetting a binder into a powder bed, and then sintering the resulting green part wherein the binder is removed and the metal particles are fused. Sintered part properties can be enhanced when nanoparticles are suspended into a solvent-based organic binder, as the inkjetted nanoparticles can reduce sintering shrinkage and increase mechanical strength. In this work, the authors also used a nanoparticle suspension without organic adhesives as a means for binding metal powder bed particles together...
September 28, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29948036/a-prototype-assembled-3d-printed-phantom-of-the-glenohumeral-joint-for-fluoroscopic-guided-shoulder-arthrography
#9
Ramin Javan, Amy L Ellenbogen, Nicholas Greek, Shawn Haji-Momenian
PURPOSE: To describe the methodology of constructing a three-dimensional (3D) printed model of the glenohumeral joint, to serve as an interventional phantom for fluoroscopy-guided shoulder arthrography training. MATERIALS AND METHODS: The osseous structures, intra-articular space and skin surface of the shoulder were digitally extracted as separate 3D meshes from a normal CT arthrogram of the shoulder, using commercially available software. The osseous structures were 3D-printed in gypsum, a fluoroscopically radiopaque mineral, using binder jet technology...
June 9, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29904650/data-related-to-the-experimental-design-for-powder-bed-binder-jetting-additive-manufacturing-of-silicone
#10
Farzad Liravi, Mihaela Vlasea
The data included in this article provides additional supporting information on our recent publication (Liravi et al., 2018 [1]) on a novel hybrid additive manufacturing (AM) method for fabrication of three-dimensional (3D) structures from silicone powder. A design of experiments (DoE) study has been carried out to optimize the geometrical fidelity of AM-made parts. This manuscript includes the details of a multi-level factorial DOE and the response optimization results. The variation in the temperature of powder-bed when exposed to heat is plotted as well...
June 2018: Data in Brief
https://www.readbyqxmd.com/read/29756242/novel-materials-for-3d-printing-by-photopolymerization
#11
REVIEW
Michael Layani, Xiaofeng Wang, Shlomo Magdassi
The field of 3D printing, also known as additive manufacturing (AM), is developing rapidly in both academic and industrial research environments. New materials and printing technologies, which enable rapid and multimaterial printing, have given rise to new applications and utilizations. However, the main bottleneck for achieving many more applications is the lack of materials with new physical properties. Here, some of the recent reports on novel materials in this field, such as ceramics, glass, shape-memory polymers, and electronics, are reviewed...
October 2018: Advanced Materials
https://www.readbyqxmd.com/read/29705105/photocurable-poly-ethylene-glycol-as-a-bioink-for-the-inkjet-3d-pharming-of-hydrophobic-drugs
#12
Giovanny F Acosta-Vélez, Timothy Z Zhu, Chase S Linsley, Benjamin M Wu
Binder jetting and material extrusion are the two most common additive manufacturing techniques used to create pharmaceutical tablets. However, their versatility is limited since the powder component is present throughout the dosage forms fabricated by binder jet 3D printing and material extrusion 3D printing requires high operating temperatures. Conversely, material jetting allows for compositional control at a voxel level and can dispense material at room temperature. Unfortunately, there are a limited number of materials that are both printable and biocompatible...
July 30, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29601543/the-design-of-3d-printed-lattice-reinforced-thickness-varying-shell-molds-for-castings
#13
Haolong Shangguan, Jinwu Kang, Jihao Yi, Xiaochuan Zhang, Xiang Wang, Haibin Wang, Tao Huang
3D printing technologies have been used gradually for the fabrication of sand molds and cores for castings, even though these molds and cores are dense structures. In this paper, a generation method for lattice-reinforced thickness-varying shell molds is proposed and presented. The first step is the discretization of the STL (Stereo Lithography) model of a casting into finite difference meshes. After this, a shell is formed by surrounding the casting with varying thickness, which is roughly proportional to the surface temperature distribution of the casting that is acquired by virtually cooling it in the environment...
March 30, 2018: Materials
https://www.readbyqxmd.com/read/28773031/additive-manufacturing-processes-selective-laser-melting-electron-beam-melting-and-binder-jetting-selection-guidelines
#14
REVIEW
Prashanth Konda Gokuldoss, Sri Kolla, Jürgen Eckert
Additive manufacturing (AM), also known as 3D printing or rapid prototyping, is gaining increasing attention due to its ability to produce parts with added functionality and increased complexities in geometrical design, on top of the fact that it is theoretically possible to produce any shape without limitations. However, most of the research on additive manufacturing techniques are focused on the development of materials/process parameters/products design with different additive manufacturing processes such as selective laser melting, electron beam melting, or binder jetting...
June 19, 2017: Materials
https://www.readbyqxmd.com/read/28756658/polymers-for-3d-printing-and-customized-additive-manufacturing
#15
Samuel Clark Ligon, Robert Liska, Jürgen Stampfl, Matthias Gurr, Rolf Mülhaupt
Additive manufacturing (AM) alias 3D printing translates computer-aided design (CAD) virtual 3D models into physical objects. By digital slicing of CAD, 3D scan, or tomography data, AM builds objects layer by layer without the need for molds or machining. AM enables decentralized fabrication of customized objects on demand by exploiting digital information storage and retrieval via the Internet. The ongoing transition from rapid prototyping to rapid manufacturing prompts new challenges for mechanical engineers and materials scientists alike...
August 9, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28275733/three-dimensional-microarchitected-materials-and-devices-using-nanoparticle-assembly-by-pointwise-spatial-printing
#16
Mohammad Sadeq Saleh, Chunshan Hu, Rahul Panat
Three-dimensional (3D) hierarchical materials are important to a wide range of emerging technological applications. We report a method to synthesize complex 3D microengineered materials, such as microlattices, with nearly fully dense truss elements with a minimum diameter of approximately 20 μm and having high aspect ratios (up to 20:1) without using any templating or supporting materials. By varying the postprocessing conditions, we have also introduced an additional control over the internal porosity of the truss elements to demonstrate a hierarchical porous structure with an overall void size and feature size control of over five orders of magnitudes in length scale...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28124282/the-role-of-3d-printing-in-preoperative-planning-for-heart-transplantation-in-complex-congenital-heart-disease
#17
M L Smith, J McGuinness, M K O'Reilly, L Nolke, J G Murray, J F X Jones
BACKGROUND: The presence of a structural cardiac defect in the setting of dextrocardia is extremely rare. Graspable models allow enhanced appreciation of aberrant structures and vascular relations, particularly in rare and complex cases. This is the first case report of the use of a replica of a patients' anatomy to plan the surgical strategy in the setting of dextrocardia. AIMS: We intend to demonstrate the benefit of three-dimensional printing to enhance preoperative planning in complex congenital heart disease undergoing heart transplantation...
August 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28056710/three-dimensional-printing-of-porous-load-bearing-bioceramic-scaffolds
#18
Elena Mancuso, Naif Alharbi, Oana A Bretcanu, Martyn Marshall, Mark A Birch, Andrew W McCaskie, Kenneth W Dalgarno
This article reports on the use of the binder jetting three-dimensional printing process combined with sintering to process bioceramic materials to form micro- and macroporous three-dimensional structures. Three different glass-ceramic formulations, apatite-wollastonite and two silicate-based glasses, have been processed using this route to create porous structures which have Young's modulus equivalent to cortical bone and average bending strengths in the range 24-36 MPa. It is demonstrated that a range of macroporous geometries can be created with accuracies of ±0...
June 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/27981202/data-on-the-densification-during-sintering-of-binder-jet-printed-samples-made-from-water-and-gas-atomized-alloy-625-powders
#19
Amir Mostafaei, Eamonn T Hughes, Colleen Hilla, Erica L Stevens, Markus Chmielus
Binder jet printing (BJP) is a metal additive manufacturing method that manufactures parts with complex geometry by depositing powder layer-by-layer, selectively joining particles in each layer with a polymeric binder and finally curing the binder. After the printing process, the parts still in the powder bed must be sintered to achieve full densification (A. Mostafaei, Y. Behnamian, Y.L. Krimer, E.L. Stevens, J.L. Luo, M. Chmielus, 2016; A. Mostafaei, E. Stevens, E. Hughes, S. Biery, C. Hilla, M. Chmielus, 2016; A...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/27752525/brief-data-overview-of-differently-heat-treated-binder-jet-printed-samples-made-from-argon-atomized-alloy-625-powder
#20
Amir Mostafaei, Yashar Behnamian, Yuval L Krimer, Erica L Stevens, Jing Li Luo, Markus Chmielus
Powder bed binder jet printing (BJP) is an additive manufacturing method in which powder is deposited layer-by-layer and selectively joined in each layer with binder. The data presented here relates to the characterization of the as-received feedstock powder, BJP processing parameters, sample preparation and sintering profile ("Effect of solutionizing and aging on the microstructure and mechanical properties of powder bed binder jet printed nickel-based superalloy 625" (A. Mostafaei, Y. Behnamian, Y.L. Krimer, E...
December 2016: Data in Brief
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