Готові списки джерел за темами / Powder printing

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Автор: Grafiati
Опубліковано: 6 вересня 2023

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Статті в журналах з теми "Powder printing"

1

Du, Bin, Shi Sheng Zhou, and Nan Wang. "Influences of Surfactants on Gloss of Aluminum Paste Printing Ink." Advanced Materials Research 181-182 (January 2011): 679–84. http://dx.doi.org/10.4028/www.scientific.net/amr.181-182.679.

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Анотація:
In reflection to the fact that aluminum paste printing ink has lower gloss and poor masking power in China, it can not meet the requirements of printing production. In this paper, through the surface modification of coated aluminum powder, five kinds of single surfactant were coated on the surface of aluminum powder by wet method in different proportions. The wettability, the floating property and the gloss of the coated aluminum powder were measured, and the influence mechanisms of the surfactants on the wettability and floating property of the aluminum powders and gloss of the aluminum paste printing ink were analyzed as well. The results showed that the wettability of the aluminum powder coated by 1% Oleic acid has the largest decrease, the floating property of the aluminum powder coated by 3% Tween-80 has the largest increase and the aluminum powder coated by 1% Polyvinyl alcohol has the highest gloss. The gloss of the coated aluminum powder increases to 73.8. Modified aluminum paste printing ink has higher gloss and stronger masking, thus can meet the printing requirements for aluminum paste printing ink.
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2

Whyte, Daniel, Benjamin J. Allardyce, Abbas Z. Kouzani, Xungai Wang, and Rangam Rajkhowa. "Understanding Morphology, Bulk Properties, and Binding of Silk Particles for 3D Printing." Powders 1, no. 2 (June 18, 2022): 111–28. http://dx.doi.org/10.3390/powders1020009.

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Silk fibroin has emerged as a leading biomaterial for biomedical applications. 3D printing has been successfully used for printing with silk fibroin, albeit in the form of a bioink, in direct-write 3D printers. However, in the form of bioinks, stability and mechanical attributes of silk are lost. An innovative alternative to producing 3D printed solid silk constructs is silk milled into powder for printing in a binder jetting printer. In this work, we focus on characteristics of silk powder to determine suitability for use in 3D printing. Two different silk powders are compared with hydroxyapatite powder, a known biomaterial for biomedical constructs. We have investigated powder size and shape by Camsizer X2 and Scanning Electron Microscope and bulk behaviour, dynamic flow behaviour, and shear behaviour by FT4 powder rheometer. Preliminary printing tests were conducted in an in-house custom-built printer designed for silk powder. It was found that silk powder has low flowability and stability. Therefore, to print solely out of silk powder, a 3D printer design will need sophisticated techniques to produce flow to ensure even distribution and consistent thickness of powder layers during the printing process. It was also found that high concentrations of formic acid (>75 to 99 wt.%) can fuse particles and therefore be used as a binder ink for 3D printing. The printer design challenges for silk powder are discussed.
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3

Ermakova, Lydia V., Valery V. Dubov, Rasim R. Saifutyarov, Daria E. Kuznetsova, Maria S. Malozovskaya, Petr V. Karpyuk, Georgy A. Dosovitskiy, and Petr S. Sokolov. "Influence of Luminescent Properties of Powders on the Fabrication of Scintillation Ceramics by Stereolithography 3D Printing." Ceramics 6, no. 1 (January 7, 2023): 43–57. http://dx.doi.org/10.3390/ceramics6010004.

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Анотація:
Luminescent and scintillation ceramic materials with complex shapes, which can be created by stereolithography 3D printing, are of interest for special phosphor and detector applications. Starting powders for such ceramics may possess UV absorption bands; therefore, it is important to study the possible influence of the powders’ luminescent properties on the printing process. This paper deals with complex garnet oxides, Y3Al5O12 and Gd3Al2Ga3O12—well-known hosts for luminescent materials. The photopolymerization rates of slurries based on the luminescent powders produced by various chemical routes are studied, as well as available printing regimes. The slurries containing Ce-doped powders with a broad absorption band in UV have significantly lower photopolymerization rates compared to the undoped ones; a high Ce doping virtually hinders printing with layers thicker than 25–50 μm. Furthermore, the choice of powder synthesis method is shown to influence the printing process. Slurries with Tb-doped powder, with absorption lines at shorter wavelengths, have good photopolymerization activity, close to that of the undoped powder, and can be printed with layer thicknesses of 25–100 μm.
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4

Mokshina, N. Ya, V. V. Khripushin, and M. S. Shcherbakova. "Colorometric study of polyamide-12 powder aging." Industrial laboratory. Diagnostics of materials 86, no. 10 (October 14, 2020): 31–35. http://dx.doi.org/10.26896/1028-6861-2020-86-10-31-35.

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The key point of 3D printing by selective laser sintering is the necessity of complete filling of the working chamber of the printer with a powder material. Since the powder is not completely consumed during the printing process, 25 – 30 wt.% of secondary (unused in the previous cycle) power is added to the primary material in each cycle. Repeated recirculation leads to degradation of the properties of the working powder mixture and increases the probability of rejects. We present the results of a colorimetric study of aging of polyamide-12 powder used in 3D printing by the method of selective laser sintering. Scanning and computer processing of digital images of primary and secondary polyamide powders obtained by colorimetry were performed using MathLab program package. Colorimetric analysis included the expression of the sample color using the parameters of color models applied in digital technologies for synthesizing colored images. The number of cycles before the onset of intensive destruction is no more than three, which is consistent with the practical experience in printing by selective laser sintering. The results characterizing change in the color of the secondary powder depending on the duration of thermal exposure and the gas medium are presented. It is shown that long-term storage of the powder for subsequent use is not advisable, since the initiators of destruction are already present in the material. Thermal oxidative destruction is shown to be a critical factor limiting the use of secondary powder along with changes in the crystallinity and fractional composition of particles. Computer processing of images of polymer powder obtained by the colorimetric method can be used to control the aging process of consumables and to predict the probability of rejections in 3D printing.
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5

Du, Bin, Shi Sheng Zhou, and Nan Wang. "Modification of Printing Aluminum Powders by Wet Covering Method with Composite Surfactants." Advanced Materials Research 179-180 (January 2011): 596–601. http://dx.doi.org/10.4028/www.scientific.net/amr.179-180.596.

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Анотація:
Considering the fact of low gloss and masking power of aluminum powder, the aluminum powder is chemically modified by wet covering with eight kinds of single surfactants such as Oleic acid, Stearic acid, Sodium dodecyl sulfonate, Sodium stearate, Polyvinyl alcohol, Polyethylene glycol, Tween-80 and Emulsifier-OP in different proportions on the surface of aluminum powder and the gloss of aluminum paste printing ink concocted with the covered aluminum powder is tested. The results show that the gloss of the aluminum powder covered by one percent Polyvinyl alcohol increases most significant. In order to upgrade the gloss of the aluminum paste printing ink, an orthogonal experiment is carried out by choosing four surfactants such as Polyvinyl alcohol as influencing factors and their addition amounts as researched levels. The optimal surface modification formula is obtained based on the experiment. The dosage of surfactant is one percent of the aluminum powder, Sodium dodecyl sulfonate accounts for 25.00% of the total surfactant’s weight, Sodium stearate accounts for 37.50% of the total surfactant’s weight, Tween-80 accounts for 12.50% of the total surfactant and Polyvinyl alcohol accounts for 25.00% of the total surfactant’s weight. The prescription can concoct the commodity aluminum powder and passed 1200 mesh to the aluminum paste printing ink with commodity ink to satisfy the request of relief printing and intaglio printing. The gloss of the printed aluminum paste printing ink reaches 81.3.
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6

Zhang, Yajuan, Xiaoyan Song, Haibin Wang, and Zuoren Nie. "A novel method of preparing Ti powder for 3D printing." Rapid Prototyping Journal 24, no. 6 (August 13, 2018): 1034–39. http://dx.doi.org/10.1108/rpj-07-2017-0151.

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Анотація:
Purpose The purpose of this paper is to propose a novel method to prepare pure Ti powder for 3D printing with tailorable particle size distribution. Design/methodology/approach The main procedures of the present method consist of gas state reaction to synthesize TiH2 nanoparticles, agglomeration to obtain micronscale powder particles by spray drying, and densification of particle interior by heat treatment. Findings The prepared Ti powder has a specific bimodal particle size distribution in a range of small sizes, good sphericity and high flowability. Particularly, this new technique is capable of controlling powder purity and adjusting particle size. Originality/value To the best knowledge of the authors, the approach for preparing 3D printing metallic powders from nanoparticles has not been reported in the literature so far. This work provides a novel method that is particularly applicable to prepare 3D printing metallic powders which have small initial particle sizes and high reactivity in the air.
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7

Miao, Guanxiong, Mohammadamin Moghadasi, Ming Li, Zhijian Pei, and Chao Ma. "Binder Jetting Additive Manufacturing: Powder Packing in Shell Printing." Journal of Manufacturing and Materials Processing 7, no. 1 (December 27, 2022): 4. http://dx.doi.org/10.3390/jmmp7010004.

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Анотація:
Shell printing is an advantageous binder jetting technique that prints only a thin shell of the intended object to enclose the loose powder in the core. In this study, powder packing in the shell and core was investigated for the first time. By examining the density and microstructure of the printed samples, powder packing was found to be different between the shell and core. In addition, the powder particle size and layer thickness were found to affect the powder packing in the shell and core differently. At a 200 µm layer thickness, for the 10 µm and 20 µm powders, the core was less dense than the shell and had a layered microstructure. At a 200 µm layer thickness, for the 70 µm powder, the core was denser and had a homogeneous microstructure. For the 20 µm powder, by reducing the layer thickness from 200 µm to 70 µm, the core became denser than the shell, and the microstructure of the core became homogeneous. The different results could be attributed to the different scenarios of particle rearrangement between the shell and core for powders of different particle sizes and at different layer thicknesses. Considering that the core was denser and more homogeneous than the shell when the proper layer thickness and powder particle size were selected, shell printing could be a promising method to tailor density and reduce anisotropy.
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8

Zhang, Qingfa, Hongzhen Cai, Andong Zhang, Xiaona Lin, Weiming Yi, and Jibing Zhang. "Effects of Lubricant and Toughening Agent on the Fluidity and Toughness of Poplar Powder-Reinforced Polylactic Acid 3D Printing Materials." Polymers 10, no. 9 (August 21, 2018): 932. http://dx.doi.org/10.3390/polym10090932.

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Анотація:
Three dimensional (3D) printing materials were manufactured with polylactic acid (PLA) and poplar powder using the twin screw extruder and 3D printing consumables extruder. Lubricant (TPW604) and toughening agent polyolefin elastomer (POE) were utilized to improve the fluidity and toughness of the materials. 3D printing materials were tested by infrared spectroscopy, X-ray diffraction, melt flow rate, rheology behavior, impact and scanning electron microscope. The results show that the poplar powder could decrease impact strength of PLA, the same as TPW604. Unlike poplar powder, TPW604 can improve the fluidity of 3D printing materials. And POE can fill the voids formed by poplar powder in PLA, enhance interface compatibility between poplar powder and PLA, and effectively improve the fluidity and impact strength of 3D printing materials.
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9

Swiecinski, K., M. Ihle, R. Jurk, E. Dietzen, U. Partsch, and M. Eberstein. "Aerosol Jet Printing of Two Component Thick Film Resistors on LTCC." Journal of Microelectronics and Electronic Packaging 10, no. 3 (July 1, 2013): 109–15. http://dx.doi.org/10.4071/imaps.384.

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Анотація:
Aerosol jet printing is a rather new technology for the deposition of thick film structures offering high line and space resolution. This method offers high potential for miniaturization for thick film structures. The advantages of this technology could be shown with inks carrying a single solid powder (e.g., silver, platinum, ceramic, or glass powder). One of the challenges in printing solid powder mixtures is the differences in the aerodynamic properties of different powders. Those differences result in changes of the mixing ratio within the aerosol jet and therefore poor reproducibility in the finished film. In this work, thick film resistors consisting of RuO2 with particle size <1 μm as the conducting phase and different glass powders with particle size around 1 μm as the isolating phase were investigated. One glass had a density rather close to RuO2, the other glass significantly lower. Inks were made from RuO2/glass powder mixtures, a solvent, and organic additives. After manufacturing, the inks are printed on LTCC and the microstructures of the dried and the fired films were visualized by FIB preparation and SEM. The resistances as well as the temperature coefficients of the resistors were measured and compared with resistor films with an identical solid composition manufactured by conventional screen printing. The results of the obtained resistors are presented and discussed in terms of powder properties, ink dispersion, and printing parameters.
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10

Swiecinski, K., M. Ihle, R. Jurk, E. Dietzen, U. Partsch, and M. Eberstein. "Aerosol jet printing of two component thick film resistors on LTCC." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2013, CICMT (September 1, 2013): 000240–46. http://dx.doi.org/10.4071/cicmt-tha25.

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Анотація:
Aerosol jet printing is a rather new technology for the deposition of thick film structures offering high line and space resolution. This offers a high potential for miniaturization for thick film structures. The advantages of this technology could be shown with inks carrying single solid powder (e.g. silver, platinum, ceramic or glass powder). Challenging is printing of solid powder mixtures due to the differences in the aerodynamic properties of different powders. Those differences result in changes of the mixing ratio within the aerosol jet and therefore poor reproducibility in the final film properties is obtained. In this work, thick film resistors consisting of RuO2 with particle size < 1 μm as the conducting phase and different glass powders with particle size around 1 μm as the isolating phase were investigated. One glass had a density rather close to RuO2, the other glass significantly lower. Inks were made from RuO2/glass powder mixtures, a solvent and organic additives. After manufacturing the inks are printed on LTCC and the microstructures of the dried and the fired films were visualized by FIB preparation and SEM. The resistances as well as the temperature coefficients of the resistors were measured and compared to resistor films with an identical solid composition manufactured by conventional screen printing. The results of the obtained resistors are presented and discussed in terms of powder properties, ink dispersion and printing parameters.
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Дисертації з теми "Powder printing"

1

Lee, Sang-Joon John. "Powder layer generation for three dimensional printing." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12452.

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2

Fan, Tailin. "Droplet-powder impact interaction in three dimensional printing." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10948.

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3

Bredt, James Frederic. "Binder stability and powder/binder interaction in three dimensional printing." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/10999.

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4

Saxton, Patrick C. (Patrick Charles) 1975. "Reducing powder bed layer defects in slurry-based three dimensional printing." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9423.

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Анотація:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
Includes bibliographical references (leaf 141).
Slurry-based Three Dimensional Printing is being used to create ceramic parts directly from CAD files. Discrete slurry layers are deposited, into which a binder material is selectively ink-jet printed. This process is repeated until the last layer of the powder bed is deposited. Afterwards, the powder bed is re-dispersed in water, leaving behind the printed green part. The green part is then sintered to full density. This thesis focuses on methods of depositing the slurry layers. Currently, slurry layers are deposited by nozzle rastering. In this approach, a nozzle mounted to an x-y linear positioning system deposits adjacent discrete lines of slurry on a powder bed. Powder beds produced by nozzle rastering contain defects that occur between line and layer interfaces. The top surface has an inherent roughness due to the peaks and valleys between discrete lines. Line merging is a new method of slurry layer deposition that has been developed in an effort to eliminate inter-line defects, improve layer surface finish, and increase throughput This new technique has been used to rapidly produced slurry layers containing fewer internal defects and smooth surface finishes. Line merging occurs when adjacent lines of slurry are deposited in rapid succession such that they merge together prior to slip casting. Line merging differs from nozzle rastering in two ways: lines are deposited in only one direction (during the return pass the nozzle is put into a catch position), and the cycle time between depositing lines is reduced from approximately I second to as little as 0.1 second. A model was developed in an effort to identify the conditions required to achieve successful line merging, while avoiding layer defects such as bubbling and irregular surface finish caused by slurry migration. This model emphasized three relationships: the ratio of cycle time for line deposition to slip casting time for a slurry layer, the ratio of line width to line spacing, and the inverse of the width of the wet slurry zone where lines have merged prior to slip casting. A 3-D plot was constructed relating an objective function comprised of the three relationships to the control parameters (flow rate divided by nozzle velocity and cycle time). A plot for each alumina slurry solids loading was used to guide experiments. These experiments supported the model, though some relationships were proved more accurate than others. The model was ultimately used to target the ideal line merging conditions that were used to produced a 60 layer alumina powder bed out of 50 micron thick layers of 18 vol% alumina slurry. This powder bed exhibited excellent surface finish, with a maximum variation of 11 microns peak to valley. SEM analysis of cross-sections revealed that internal defects between deposited lines, previously seen with nozzle rastering, had been eliminated. Micro-bubbles along the interface between layers persisted, however. Follow-up SEM analysis of a 5 layer powder bed built with 22 vol% alumina slurry revealed no inter-line or inter-layer defects.
by Patrick C. Saxton.
S.M.
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5

Esterman, Marcos. "Characterization of the powder/binder interaction in the three dimensional printing process." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/13671.

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Анотація:
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1990.
Title as it appears in the Sept. 1990 M.I.T. Graduate List: Characterization of powder/binder interaction in the three dimensional printing process.
Includes bibliographical references (leaves 131-132).
by Marcos Esterman, Jr.
M.S.
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6

Nur, Hassan Mohammed. "Fabrication of advanced ceramics and selective metallization of non-conductive substrates by inkjet printing." Thesis, Brunel University, 2002. http://bura.brunel.ac.uk/handle/2438/4823.

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Inkjet printing of ceramic components and gold conductive tracks was carried out in this study. A commercial inkjet printer, designed for printing one layer of 2D images on paper, was modified to give adequate resolution, to reverse the substrate for overprinting many layers and to accommodate the increase in thickness of 3D components during printing. Ceramic inks were prepared by wet ball milling and printed to form 3D structures. The powders used were alumina, zirconia, lead zirconate titanate (PZT) and barium titanate. The substrate used for printing the ceramic parts was an overhead transparency. Methods to stop or reduce ink flow were devised and used during printing of the ceramic parts. The alumina and zirconia powders were used for the fabrication of multi-layered laminates. The lead zirconate titanate was used to fabricate components with pillars, walls, vertical channels and x-y-z channel network. During printing of the x-y-z channel network, carbon was used as a support structure and then removed during firing. Barium titanate and carbon powders were used to form the first storey of a capacitor with a multi-storey car park structure. The printed parts were pyrolysed and fired in an oxidising environment and then characterised with scanning electron microscopy. The causes of micro structural defects found were discussed and prevention methods suggested. Organic gold powder was dissolved in methanol and then printed on three different substrates to form conductive gold tracks. The substrates used included alumina, glazed tile and microscope glass slides. The printed tracks were fired in air. The decomposition characteristics of the organic gold compound were studied with TGA and Differential Scanning Calorimetry (DSC). Scanning electron microscope was used to examine the fired gold film for defects and conductivity measurement of the tracks was carried out with a programmable multimeter.
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7

Touma, Rikard, and Nathalie Pettersson. "3D-printing med träEn möjlighet för framtiden?" Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-92364.

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Анотація:
3D-skrivare har många användningsområden och de har blivit vanliga i många industrier.Idag talas det om att denna teknik kan vara en möjlig väg till mer hållbart byggande.Tekniken anses lovande inom byggproduktion bland annat för att det visat sig att den kanreducera materialspillet och ge kortare byggtider. Till viss del används tekniken redan förbyggnadstillverkning, men då främst med betong.Målet med arbetet är att beskriva nuvarande kunskap rörande 3D-printing medträbaserad massa, samt att undersöka möjligheten till att använda en träbaserad massabestående av sågspån, vatten och lignin vid 3D-printing.För att kunna nå målet användes en kombination av litteratursökning och laborativaexperiment. Litteratursökningen användes både för att undersöka tidigare genomförda studiergällande träbaserade material i samband med 3D-printing, samt som inspiration för deingredienser och proportioner som används i de laborativa experimenten.Enbart studier om träbaserad 3D-printing studerades. De testobjekt som togs fram i delaborativa experimenten utvärderades i hållfasthet, dimensionsstabilitet och vidhäftning.Resultaten av det laborativa arbetet tyder på att det framtagna materialet går att extrudera,men att det har låg draghållfasthet. Lagren bands samman bra för samtliga tester, medantryckhållfastheten gav varierande resultat. Högst tryckhållfasthet gavs av den blandning somhade högst andel lignin, samt torkades under längst tid.Slutsatsen är att materialet kan vara till nytta, men att rätt användningsområde börbestämmas, då materialet inte tål alltför stora laster.
3D printers have many uses and they have become common in many industries. Today, thistechnology is seen as a possible route to more sustainable construction. The technology isconsidered promising in construction engineering, among other things because it has beenshown that it can reduce material waste and provide shorter production times. To someextent, the technology is already being used for building construction, but then mainly withconcrete.The aim of this study is to describe current knowledge regarding 3D printing with woodbasedpulp and to investigate the possibility of using a wood-based pulp consisting ofsawdust, water and lignin for 3D printing.In order to reach the goal, a combination of literature search and laboratory experiments wasused. The literature search was used both to investigate previously conducted studiesregarding wood-pulp based materials in 3D printing and as inspiration for the ingredients andproportions used in the laboratory experiments.Only studies on wood-based 3D printing were studied. The test objects produced in thelaboratory experiments were evaluated in strength, dimensional stability and adhesion. Theresults of the laboratory work indicate that the produced material can be extruded, but that ithas low tensile strength. The layers bonded well for all tests, while the compressive strengthresults varied. The highest compressive strength was given by the mixture with the highestproportion of lignin and the longest drying time.The conclusion is that the material might be useful, but that the correct area of use should bedetermined, as the material cannot withstand excessive loads.Keywords:
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8

Pruitt, Beth L. (Beth Lynn). "The design of an automated powder deposition system for a three-dimensional printing machine." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13049.

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9

Ramos, Juan David. "Design of humidifying system for the powder bed of the three-dimensional printing machine." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12442.

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10

Caradonna, Michael Anthony. "The fabrication of high packing density ceramic powder beds for the three dimensional printing process." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/9316.

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Анотація:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
Includes bibliographical references (leaf 123).
Three Dimensional Printing is a solid freeform fabrication process which can be used to create parts directly from CAD models. In the past, the 3DP process has been used to create structural ceramic parts using spray dried powders. Although fully dense parts have been made, it has been necessary to use an iso-static pressing step before sintering. Such a step has many disadvantages such as causing anisotropic shrinkage, warping, and lower part yields. In order to eliminate the iso-static pressing step, an improved process which uses slurries instead of dry powders makes it possible to fabricate green parts with high enough packing density that printed parts can be sintered directly. The main effort on the slurry-based 3DP process focused on fabricating powder beds which had high packing density and good surface finish. Three possible approaches were investigated: repeated tape-casting, spray deposition, and ink-jet printing of slurry. The repeated tape-casting approach was able to produce powder beds with excellent surface finish (4 [mu]m peak-to-peak roughness), high packing density (60-65% of theoretical), and small pore size (typically 0.3 [mu]m or less). Such powder beds can also be fabricated relatively quickly since a layer is produced in a single pass. However, this approach can be difficult to control. The spray deposition approach was determined to be a poor candidate for layer fabrication. Besides having relatively rough surface finish, nozzle performance problems make it impossible to build thick powder beds with good dimensional control. The ink-jet printing approach has produced large powder beds up to 8.5 mm in height. For such powder beds, good surface finish (8 [mu]m local peak-to-peak roughness) and dimensional control was evident. Ink-jet printed powder beds also have good packing density (55-62% of theoretical) and pore size distribution. One problem with powder beds which have been printed is that velocity ripple in the fast-axis shows up as a height ripple on the powder bed surface (typically 4.5% peak-to-peak). This can be eliminated with improved machine design. The ink-jet printing approach appears to be the leading method of fabricating complex ceramic parts with the slurry-based 3DP process.
by Michael Anthony Caradonna.
S.M.
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Книги з теми "Powder printing"

1

The printing press: Transforming power of technology. Philadelphia: Chelsea House Publishers, 2004.

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2

The power of the press: History and development of printing presses from the fifteenth to the twenty-first century. Fort Worth, Tex: P&T Pub. Co., 1998.

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3

Kellner, Imke Nora. Materialsysteme für das pulverbettbasierte 3D-Drucken. München: Herbert Utz Verlag, 2012.

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4

Corporation, Xerox, ed. The power of print on demand. Fairport, N.Y: Xerox Corp., 1994.

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5

Martin, Henri-Jean. The history and power of writing. Chicago: University of Chicago Press, 1994.

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6

Martin, Henri-Jean. The history and power of writing. Chicago: University of Chicago Press, 1994.

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7

Printing, power, and piety: Appeals to the public during the early years of the English Reformation. Leiden: Brill, 2012.

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8

Lause, Mark A. Some degree of power: From hired hand to union craftsman in the preindustrial American printing trades, 1778-1815. Fayetteville: University of Arkansas Press, 1991.

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9

The power to harm: Mind, medicine, and murder on trial. New York, USA: Viking, 1996.

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10

Xiang, Xuan. Huang quan yu jiao hua: Qing dai Wuying dian xiu shu chu yan jiu = Imperial power and moral transformation : a study on the printing institute in Wuying palace of Qing dynasty. Beijing: Zhongguo she hui ke xue chu ban she, 2020.

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Частини книг з теми "Powder printing"

1

Dourandish, M., Dirk Godlinski, and Abdolreza Simchi. "3D Printing of Biocompatible PM-Materials." In Progress in Powder Metallurgy, 453–56. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-419-7.453.

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2

Zhu, Yanli, Ahmet Okyay, Mihaela Vlasea, Kaan Erkorkmaz, and Mark Kirby. "The Additive Journey from Powder to Part." In Women in 3D Printing, 135–63. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70736-1_11.

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3

Carreño-Morelli, Efrain, Sebastien Martinerie, and J. Eric Bidaux. "Three-Dimensional Printing of Shape Memory Alloys." In Progress in Powder Metallurgy, 477–80. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-419-7.477.

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4

Awari, G. K., C. S. Thorat, Vishwjeet Ambade, and D. P. Kothari. "Powder-Based Additive Manufacturing Systems." In Additive Manufacturing and 3D Printing Technology, 89–106. First edition. | Boca Raton, FL : CRC Press/Taylor & Francis Group, LLC, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/9781003013853-5.

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5

Badini, C., and E. Padovano. "Powder Bed Fusion." In High Resolution Manufacturing from 2D to 3D/4D Printing, 81–103. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-13779-2_4.

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6

Chen, Chen, Lei Wang, Xiaochun Wang, Taotao Xiong, and Guangxue Chen. "Printing Time Optimization of Large-Size Powder-Based 3D Printing." In Advances in Graphic Communication, Printing and Packaging Technology and Materials, 346–51. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0503-1_51.

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7

Fina, Fabrizio, Simon Gaisford, and Abdul W. Basit. "Powder Bed Fusion: The Working Process, Current Applications and Opportunities." In 3D Printing of Pharmaceuticals, 81–105. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90755-0_5.

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8

Sriram, Vadlamannati, Vipin Shukla, and Soumitra Biswas. "Metal Powder Based Additive Manufacturing Technologies—Business Forecast." In 3D Printing and Additive Manufacturing Technologies, 105–18. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0305-0_10.

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9

Kooijman, Wessel, and Julian Quodbach. "Powder Bed Fusion 3D Printing in Drug Delivery." In AAPS Introductions in the Pharmaceutical Sciences, 233–56. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34119-9_11.

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10

Zuo, Wenqiang, Chenghao Dong, Emmanuel Keita, and Nicolas Roussel. "Penetration Study of Liquid in Powder Bed for 3D Powder-Bed Printing." In RILEM Bookseries, 379–86. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49916-7_39.

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Тези доповідей конференцій з теми "Powder printing"

1

Lyckfeldt, Ola. "Metal Powder Characterization for 3D Printing." In Proceedings of the 4M/ICOMM2015 Conference. Singapore: Research Publishing Services, 2015. http://dx.doi.org/10.3850/978-981-09-4609-8_142.

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2

Kumar, Ashok V., and Anirban Dutta. "Layered Manufacturing by Electrophotographic Printing." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/dac-48724.

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A layered manufacturing technique that uses electrophotography is described where powder is picked up and deposited using a charged photoconducting surface and deposited layer by layer on a build platform. A test bed was designed and constructed to study the application of electrophotography to layered manufacturing. The test bed can precisely deposit powder in the desired shape on each layer. The feasibility of printing powder layer by layer was demonstrated. The electric field required to transfer the powder on to the platform (or onto previously printed layers) was studied. It was found that corona charging the top layer of the part is necessary to continue printing powder as the part height increases.
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3

Good, Brandon L., David A. Roper, Mark S. Mirotznik, and Austin J. Good. "Effective media theory of dry powder dot printing." In 2016 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2016. http://dx.doi.org/10.1109/aps.2016.7696700.

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4

Cabezas, L., C. Berger, E. Jiménez-Piqué, J. Pötschke, and L. Llanes. "Influence Of Printing Direction On The Mechanical Properties At Different Length Scales For WC-Co Samples Consolidated By Binder Jetting 3D Printing." In World Powder Metallurgy 2022 Congress & Exhibition. EPMA, 2022. http://dx.doi.org/10.59499/wp225371462.

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Additive Manufacturing (AM) is rapidly growing as a revolutionary technique. It provides an interesting ability to produce complex geometries, a key feature for enhancing performance and widening application fields of hardmetal components. Within this context, all the samples produced by AM [AMed] are expected to exhibit characteristics linked to the shaping route followed, which are also vital for defining their mechanical integrity. This work aims to study the correlation of the printing direction to the final microstructure, mechanical properties and layer assemblage at different length scales for a 12%wtCo–WC grade hardmetals of medium/coarse grain size consolidated by binder jetting 3D printing and subsequent sintering. Vickers macro- and micro-hardness as well as reciprocal scratch tests are conducted. The results are analysed and discussed in terms of printing orientation effects on microstructural variability, mechanical response, intrinsic physical behaviour of the material and feedstock used.
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5

Liao, Chao-Yaug, Po-Lun Wu, and Chao-Yu Lee. "Customized PEEK Implants With Microporous and Surface Modification Using 3D Printing." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97117.

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Abstract Polyetheretherketone (PEEK) is a high-performance, semi-crystalline thermal polymer with medical advantages such as biocompatibility and radiolucency. PEEK has an elastic modulus comparable to that of human cortical bone, so it can effectively reduce the stress shielding effect caused by the mismatch between the mechanical properties of an implant and human bone tissue. However, PEEK is biologically inert, and its use typically relies on a variety of surface modification methods, such as surface coatings of bio-ceramic materials, enhancing the surface bioactivity, and osseointegration. Compared to thermal spray or plasma spray technologies, the cold spray is carried out at relatively low temperatures, retaining the original properties of the material. This research establishes an open-source three-dimensional printer compatible with PEEK and also develops a powder-spray module based on the cold spray technology that can coat the surfaces of PEEK printings with hydroxyapatite (HA) to improve its bioactivity. This paper discusses the best parameter selection for PEEK printing, a thermal history analysis of the printing process, and the adhesion of HA powder coated on PEEK specimens with different porosities. Finally, the PEEK implant is printed to measure its performance under a vertical load.
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6

Roper, David A., Mark S. Mirotznik, and Shridhar Yarlagadda. "Three dimensional printing of graded dielectrics using ultrasonic powder deposition." In 2013 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2013. http://dx.doi.org/10.1109/aps.2013.6711236.

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7

Zhang, J. S., Y. T. Yang, Z. K. Qin, J. J. Luo, W. Gao, and S. L. Wei. "Research Progress of the Modified Wood Powder for 3D printing." In 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/mmme-16.2016.217.

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8

Chao, Tzu-Han, and Chuan-Chieh Liao. "Degassing of Medical Powder Plastics in Fused Deposition 3D Printing." In IEEE ICEIB 2023. Basel Switzerland: MDPI, 2023. http://dx.doi.org/10.3390/engproc2023038069.

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9

Do, Truong, Tyler J. Bauder, Hawke Suen, Kristian Rego, Junghoon Yeom, and Patrick Kwon. "Additively Manufactured Full-Density Stainless Steel 316L With Binder Jet Printing." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6681.

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Binder jet printing (BJP), one of the early metal 3D printing technologies, has distinct advantages over the other 3D printing processes that employ locally melting or welding to build 3D parts. Some of the advantages of BJP include printed parts free of residual stresses, build plate not being required, and less powder usage. However, the BJP technology has been adopted only in limited applications such as prototyping and sand molding because of its difficulty in achieving full-density parts. Based on our previous work on stainless steel (SS) 420, the same BJP protocol was used to attain full-density parts made of SS 316L. The effect of the particle size, mixture ratio, and sintering additives on the densities of printed and sintered parts is investigated for SS 316L powder. Three distinct sizes of SS 316L powders are mixed to improve the packing density. A systematic study of the binder burn-out procedure is conducted using thermogravimetric analysis, leading to a complete removal of binder phase without oxidizing SS 316L powder. The optimal sintering condition for some powder mixtures is determined to obtain the maximum density with the addition of small amounts of boron compounds as sintering additives. The quality of the fully-sintered SS 316L parts is evaluated using the various measurements including density, microstructure, hardness, and surface roughness. As we did with SS 420, the relative density of 99.6% is obtained for SS 316L without structural distortion. This is the first demonstration of such density for SS 316L using the BJP technology without any infiltration.
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10

Lai, Ling-Feng, Deng-Maw Lu, Kuei-Shu Hsu, and Jian-Ming Lu. "A Study of Nanoscale Vanadium Powder Applied on 3D Printing Process." In 2019 IEEE 2nd International Conference on Knowledge Innovation and Invention (ICKII). IEEE, 2019. http://dx.doi.org/10.1109/ickii46306.2019.9042646.

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Звіти організацій з теми "Powder printing"

1

Ovalle, Samuel, E. Viamontes, and Tony Thomas. Optimization of DLP 3D Printed Ceramic Parts. Florida International University, October 2021. http://dx.doi.org/10.25148/mmeurs.009776.

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Digital Light Processing (DLP) 3D printing allows for the creation of parts with advanced engineering materials and geometries difficult to produce through conventional manufacturing techniques. Photosensitive resin monomers are activated with a UV-producing LCD screen to polymerize, layer by layer, forming the desired part. With the right mixture of photosensitive resin and advanced engineering powder material, useful engineering-grade parts can be produced. The Bison 1000 is a research-grade DLP printer that permits the user to change many parameters, in order to discover an optimal method for producing 3D parts of any material of interest. In this presentation, the process parameter optimization and their influence on the 3D printed parts through DLP technique will be discussed. The presentation is focused on developing 3D printable slurry, printing of complex ceramic lattice structures, as well as post heat treatment of these DLP-produced parts.
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2

Reeves, Robert, Joseph Tringe, Darby Makel, and Susana Carranza. Development of Powder Bed Printing (3DP) For Rapid and Flexible Fabrication of Energetic Material Payloads and Munitions Final Report CRADA No. TC02250.0. Office of Scientific and Technical Information (OSTI), November 2017. http://dx.doi.org/10.2172/1419652.

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3

Reeves, R., J. Tringe, D. Makel, and S. Carranza. Development of Powder Bed Printing (3DP) For Rapid and Flexible Fabrication of Energetic Material Payloads and Munitions Final Report CRADA No. TC02250.0. Office of Scientific and Technical Information (OSTI), March 2021. http://dx.doi.org/10.2172/1774216.

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4

Kennedy, Alan, Mark Ballentine, Andrew McQueen, Christopher Griggs, Arit Das, and Michael Bortner. Environmental applications of 3D printing polymer composites for dredging operations. Engineer Research and Development Center (U.S.), January 2021. http://dx.doi.org/10.21079/11681/39341.

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This Dredging Operations Environmental Research (DOER) technical note disseminates novel methods to monitor and reduce contaminant mobility and bioavailability in water, sediments, and soils. These method advancements are enabled by additive manufacturing (i.e., three-dimensional [3D] printing) to deploy and retrieve materials that adsorb contaminants that are traditionally applied as unbound powders. Examples of sorbents added as amendments for remediation of contaminated sediments include activated carbon, biochar, biopolymers, zeolite, and sand caps. Figure 1 provides examples of sorbent and photocatalytic particles successfully compounded and 3D printed using polylactic acid as a binder. Additional adsorptive materials may be applicable and photocatalytic materials (Friedmann et al. 2019) may be applied to degrade contaminants of concern into less hazardous forms. This technical note further describes opportunities for U.S. Army Corps of Engineers (USACE) project managers and the water and sediment resource management community to apply 3D printing of polymers containing adsorptive filler materials as a prototyping tool and as an on-site, on-demand manufacturing capability to remediate and monitor contaminants in the environment. This research was funded by DOER project 19-13, titled “3D Printed Design for Remediation and Monitoring of Dredged Material.”
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5

3D printing with metal powders: health and safety questions to ask. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, March 2020. http://dx.doi.org/10.26616/nioshpub2020114.

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