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Wyszukujesz frazę "Printing" wg kryterium: Temat


Tytuł:
Process of Manufacturing Transparent Models of Anatomical Structures
Autorzy:
Wojnarowska, Wiktoria
Nieroda, Maciej
Gładysz, Ewelina
Miechowicz, Sławomir
Kudasik, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/176131.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
3D printing
medical applications
additive manufacturing
Opis:
In recent years, a rapid increase in the use of three-dimensional (3D) printing technologies in medicine, especially in the manufacturing of the diagnostic models, can be observed. In some cases, there is a need to fabricate transparent models that allow visualization of internal structures of the object. Unfortunately, techniques used to manufacture such models are often very expensive and time-consuming. The above-mentioned issues were the motivation for developing a new method of fabrication transparent models for visualization of internal structures for planning surgical treatments. This paper presents the process of making transparent models using the newly developed method – the stacked layers method. In order to compare this new method and one of the most common 3D printing technologies – fused deposition modeling (FDM) – the models for two medical cases using both of these methods were fabricated. As a result of this work, it can be concluded that the stacked layers method provides faster and cheaper way of making transparent medical models. The main features of fabrication process that have a huge impact on quality of the models made by new method were pointed. The results of this study suggest that models fabricated with the use of this method can be useful as a diagnostic tool in medical applications for planning surgical treatments.
Źródło:
Advances in Manufacturing Science and Technology; 2020, 44, 2; 62-66
0137-4478
Pojawia się w:
Advances in Manufacturing Science and Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low Cost Design Methods to Enhance Resolution and Dimensions for Printed Electrodes
Autorzy:
Marzęcki, Michał
Tarapata, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/1844461.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
technology
inkjet printing
resolution
design method
interdigital electrodes
Opis:
In the paper, we demonstrate the feasibility of interdigital electrodes fabrication with the usage of inkjet printing technology. The emphasis was put to obtain better shape quality and lower spacing between electrodes with respect to typical printing process. The paper presents an analysis of the main factors that have an influence on the dimension and quality of printed structures and proposes two methods that allow eliminating the main problems. The first proposed method is based on controlling the time between patterning of successive drops. While the second method is based on changing the design methods considering printing orientation. Both methods do not require any additional technological processes or the use of any special surface preparation methods. Finally, the obtained results and conclusions were presented and discussed.
Źródło:
International Journal of Electronics and Telecommunications; 2020, 66, 4; 793-799
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Role of Additive Manufacturing in Supply Chain Management
Autorzy:
Patalas-Maliszewska, Justyna
Kowalczewska, Katarzyna
Rehm, Matthias
Powiązania:
https://bibliotekanauki.pl/articles/2201179.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
additive manufacturing
3D printing
supply chain management
Opis:
Nowadays, it is necessary to develop a conceptual framework for analysing the relationship between the implementation of Additive Manufacturing (AM) and Supply Chain Management (SCM). In this context, a gap in the research has been observed in the new approach to designing the importance of AM in SCM. The main contribution of this paper, therefore, is a new framework to formulate the role in adopting AM in SCM. The research methodology is based on detailed literature studies of AM in relation to the SCM process within a manufacturing company, as well on a case study, namely the COWAN GmbH manufacturing company who specialise in producing homewares for motorhome enthusiasts. As highlighted in the state-of-the-art analysis, no work, currently available, supports all the features presented.
Źródło:
Management and Production Engineering Review; 2023, 14, 1; 25--33
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acoustic Metamaterials
Autorzy:
Sztyler, Bartłomiej
Strumiłło, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2141685.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
acoustic metamaterials
acoustic metasufraces
tunability
3D printing
Opis:
This review article is concerned with metamaterials, i.e. specifically engineered structures with special properties for interaction with sounds. The research on and practical design of these materials have gained momentum in the last decade, when 3D printing techniques provided the possibility to fabricate such geometrically complex structures. We briefly describe the history of research on AMMs and group them into active and passive metamaterials. For each of these groups of AMMs, we discuss the most notable construction achievements and outline the main applications. We conclude this review with a discussion of possible directions for further research and main applications of AMMs such as noise attenuation, acoustic lens, and the cloaking phenomenon.
Źródło:
Archives of Acoustics; 2022, 47, 1; 3-14
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Literature review on emissions from additive manufacturing by FDM method and their impact on human health
Autorzy:
Karwasz, Anna
Osiński, Filip
Powiązania:
https://bibliotekanauki.pl/articles/407089.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
FDM
3d printing
emissions
pollution
environment
health
Opis:
Additive manufacturing in recent years has become one of the fastest growing technologies. The increasing availability of 3D printing devices means that every year more and more devices of this type are found in the homes of ordinary people. Unfortunately, air pollution is formed during the process. Their main types include Ultra Fine Particles (UFP) and Volatile Compounds (VOC). In the event of air flow restriction, these substances can accumulate in the room and then enter the organisms of people staying there. The article presents the main substances that have been identified in various studies available in literature. Health aspects and potential threats related to inhalation of substances contained in dusts and gases generated during the process are shown, taking into account the division into individual types of printing materials. The article also presents the differences between the research results for 3d printing from individual plastics among different authors and describes possible causes of discrepancies.
Źródło:
Management and Production Engineering Review; 2020, 11, 3; 65-73
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of 3d Model Geometry on Dimensional and Shape Characteristics in Additive Manufacturing
Autorzy:
Tagowski, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2106565.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
additive manufacturing
3d printing
3d modelling
CAx
Opis:
Quality of 3d model in simple way translates into quality of final product, obtained from 3d printing. 3d CAx software give possibility to create enormous number of shapes - doesn’t matter solids or surfaces. The question is where is the frontier between quality of 3d model and a value for money of the completed print? Is it always necessary to create as good model as possible? This paper will focus on preparation of 3d models, based on primitives and will show connection between quality of mesh, its size and deviations and quality of obtained samples, in same manufacturing conditions.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 2; 391--396
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of Two-Step Metallization Process of Plastic 3D Prints Fabricated by SLA Method
Autorzy:
Kołczyk, K.
Zborowski, W.
Kutyła, D.
Kwiecińska, A.
Kowalik, R.
Żabiński, P.
Powiązania:
https://bibliotekanauki.pl/articles/356378.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electroless deposition
electrodeposition
thin films
metallization
3D printing
Opis:
This paper presents the results of experiments on metallization of plastic elements produced using 3D printing technology from the light-hardened resins. The obtained coatings were bimetallic (Cu/Ni). The first step of metallization was the electroless deposition of copper. The second one was electrodeposition of nickel on the previously prepared copper substrate. The parameters of 3D prints preparation and metallization processes were deeply investigated. The etching of plastics substrates and duration of electroless metallization of 3D prints by copper were analyzed. In the next step the influence of nickel electrodeposition time was investigated. The coating were analyzed by XRD method and morphology of surface was analyzed by scanning electron microscopy (SEM). The thickness of coatings was calculated based on mass differences and measured by using optical microscopy method. The optimal parameters for both processes were specified.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 2; 1031-1036
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Sintering Conditions on the Inkjet Printed Paths Resistance
Autorzy:
Tomaszewski, G.
Wałach, T.
Potencki, J.
Pilecki, M.
Powiązania:
https://bibliotekanauki.pl/articles/963904.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
sintering
inkjet printing
printed electronics
flexible electronics
nanosilver ink
Opis:
The sintering of elements performed with the inkjet printing technique is one of the stages of flexible printed circuit manufacturing process. It is a crucial factor to determining the printed paths conductivity playing often an important role in the printed circuit. In this paper the study of the influence of thermal sintering conditions (temperature, time) on the resistance of paths made with inkjet printing on flexible substrates by using two electrically conductive inks was presented. The results of the investigations show that the sintering temperature is the main factor determining the paths resistance. Therefore, in some applications the sintering temperature higher than the one specified by the ink manufacturer can be used to decrease the paths resistance and to improve some circuit parameters. However, it should be noticed that the effective resistance decrease occurs only up to a certain temperature due to the appearance cracks in the printed paths.
Źródło:
International Journal of Electronics and Telecommunications; 2016, 62, 2; 135-140
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polymer Composites Used in Rapid Prototyping Technology
Autorzy:
Bulanda, Katarzyna
Oleksy, Mariusz
Oliwa, Rafał
Budzik, Grzegorz
Markowski, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/175877.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
3D printing
FDM
composites
metal nanofiller
polymer processing
Opis:
New materials and filaments dedicated to 3D printing were obtained using the fused deposition modeling method, and the properties of the produced materials were investigated. Polylactide was used as a polymer base for the assays because of the desired properties of the polymer, mainly biodegradability, and the matrix was refilled by the addition of metallic nanofillers, such as bronze, copper, brass, and steel. For the composites obtained, mechanical properties were investigated to determine the dependence of the obtained results on the content and type of filler used and on the method of fabrication of the fittings. It was found that the additives present in the polymer matrix increased the fluidity of the material. The best results were obtained for the compositions with bronze and steel in which the mass flow rate was 72.97 and 79.99 g/10 min, respectively. The filled material that had lower hardness was measured by Rockwell and the impact strength was measured by Charpy. In addition, it was found that injection-molded parts obtained much better mechanical properties than those obtained by 3D printing.
Źródło:
Advances in Manufacturing Science and Technology; 2020, 44, 1; 15-20
0137-4478
Pojawia się w:
Advances in Manufacturing Science and Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Passive UHF RFID-enabled sensor system for detection of products exposure to elevated temperature
Autorzy:
Janeczek, K.
Jakubowska, M.
Kozioł, G.
Jankowski-Mihułowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/220717.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
RFID
temperature sensor
printed antenna
screen printing
printed electronics
Opis:
Temperature change is one of key factors which should be taken into account in logistics during transportation or storage of many types of goods. In this study, a passive UHF RFID-enabled sensor system for elevated temperature (above 58°C) detection has been demonstrated. This system consists of an RFID reader and disposable temperature sensor comprising an UHF antenna, chip and temperature sensitive unit. The UHF antenna was designed and simulated in an IE3D software. The properties of the system were examined depending on the temperature level, type of package which contains the studied objects and the type of antenna substrate.
Źródło:
Metrology and Measurement Systems; 2013, 20, 4; 591-600
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Дiяч двох великих традиций. Скорина í Украïна
An Activist of Two Big Traditions. Skaryna and Ukraine
Autorzy:
Sobol, Walentyna
Powiązania:
https://bibliotekanauki.pl/articles/2032464.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Skaryna
Ukraine
borderland
history of printing
Venice
Skaryna’s publications
Źródło:
Slavia Orientalis; 2018, LXVII, 3; 395-401
0037-6744
Pojawia się w:
Slavia Orientalis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in Thermal Properties of Printouts Made of PETG and PLA Doped with Copper After Electrocorrosive Ageing Process
Autorzy:
Redutko, Joanna
Kalwik, Aleksandra
Szarek, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/2048870.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
3D printing
thermal properties
DMA
DSC
Simulated Body Fluid conditions
Opis:
The article presents the results of research on selected thermal, mechanical properties, as well as the microscopic structure of filaments and details made on a 3D printer in FDM technology. The materials used in the study were PETG (polyethylene terephthalate doped with glycol) and PLA (polylactide) doped with copper. As part of the study, Differential Scanning Calorimetry (DSC) was performed in order to determine the temperatures of phase transformations and changes in melting enthalpy values of filaments before the printing process and also elements made of them. The second part of the research was electrocorrosive ageing process of printouts, carried out in the Simulated Body Fluid solution in a device generating 0.3 A direct current, voltage with value 4.3 V for the entire duration of the test, which was 720 h. After this process DSC test was conducted again. The next stage of the research was Dynamic Mechanical Analysis (DMA) of printouts before and after electrocorrosive ageing process. This test was carried out to characterize the dynamic-mechanical properties as a function of frequency, temperature and time. Additionally, microscopic analyses of the surfaces of the tested printouts were performed in order to assess the changes after electrolysis.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 333-339
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contactless method for resistance measurement of ultra-thin printed and conductive lines
Autorzy:
Szybiński, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/220707.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inkjet printing electronics
resistance measurements
micrometer conducting lines
contactless method
resonance circuits
Opis:
In this paper the problem of resistance measurement of ultrathin conductive lines on dielectric substrates dedicated for printing electronic industry is discussed. The measured line is transformed in a non-invasive way into a resonance circuit. By using a magnetic coupling between the source line and the tested line, the resistance measurement can be performed non-invasively, i.e. without a mechanical contact. The proposed contactless resistance measurement method is based on the resonance quality factor estimation and it is an example of the inverse problem in metrology.
Źródło:
Metrology and Measurement Systems; 2020, 27, 3; 427-439
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Directions of the Development of the 3D Printing Industry as Exemplified by the Polish Market
Autorzy:
Woźniak, Joanna
Budzik, Grzegorz
Przeszłowski, Łukasz
Chudy-Laskowska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1841411.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
additive manufacturing
3D printing
Industry 4.0
production development
production engineering
Opis:
The Fourth Industrial Revolution, also known as Industry 4.0, is about connecting the physical world with the virtual world in real-time. With the advent of the Fourth Industrial Revolution, manufacturing companies are introducing a number of solutions that increase productivity and personalize finished products in line with the idea of Industry 4.0. The application of, among others, the following: 3D printing, the Internet of Things, Big Data, cyber-physical systems, computing clouds, robots (collaborating and mobile), Radio-frequency identification systems, and also quality control and reverse engineering systems, is becoming popular. There are still not enough studies and analyses connected with the Polish 3D printing market, and also attempt to determine the attitude of those studies and analyses to the implementation of the Industry 4.0 conception. In connection with what is stated above, the principal objective of this paper is to determine the directions of the 3D printing industry development. In this publication, it is as well the survey respondents’ opinions relevant to opportunities and threats connected with the implementation of the Industry 4.0 conception in an enterprise are presented. The survey was conducted on a group of 100 enterprises and scientific research institutes in Poland, offering and/or applying additive technologies.
Źródło:
Management and Production Engineering Review; 2021, 12, 2; 98-106
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication of a Spherical Titanium Powder by Combined Combustion Synthesis and DC Plasma Treatment
Autorzy:
Choi, S. H.
Ali, B.
Hyun, S. K.
Sim, J. J.
Choi, W. J.
Joo, W.
Lim, J. H.
Lee, Y. J.
Kim, T. S.
Park, K. T.
Powiązania:
https://bibliotekanauki.pl/articles/356067.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
combustion synthesis
DC plasma treatment
titanium powder
3D printing process
combustion parameters
Opis:
Combustion synthesis is capable of producing many types of refractory and ceramic materials, as well as metals, with a relatively lower cost and shorter time frame than other solid state synthetic techniques. TiO2 with Mg as reductant were dry mixed and hand compacted into a 60 mm diameter mold and then combusted under an Ar atmosphere. Depending on the reaction parameters (Mg concentration 2 ≤ α ≤ 4), the thermocouples registered temperatures between 1160°C and 1710°C . 3 mol of Mg gave the optimum results with combustion temperature (Tc) and combustion velocity (Uc) values of 1372°C and 0.26 cm/s respectively. Furthermore, this ratio also had the lowest oxygen concentration in this study (0.8 wt%). After combustion, DC plasma treatment was carried out to spheroidize the Ti powder for use in 3D printing. The characterization of the final product was performed using X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and N/O analysis.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1057-1062
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł

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