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Tytuł:
Viscoelastic characterization of additively manufactured acrylonitrile butadiene styrene
Autorzy:
Witek, Szczepan
Powiązania:
https://bibliotekanauki.pl/articles/29519773.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
fused filament fabrication
two-layer viscoplastic model
stress relaxation
ABS
Opis:
The main objective of this work was to characterize the viscoelastic properties of additively manufactured Acrylonitrile Butadiene Styrene based on tensile stress relaxation tests. The stress relaxation measurements were conducted with a temperature range of 25–100°C. The two-layer viscoplastic constitutive model was adopted to describe the elastic and viscous behavior of the investigated material. The model parameters were calibrated using an inverse analysis and stress relaxation data. The model’s predictive capabilities were assessed by comparing the model predictions with experimental data not included in the calibration process.
Źródło:
Computer Methods in Materials Science; 2023, 23, 2; 39-44
2720-4081
2720-3948
Pojawia się w:
Computer Methods in Materials Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ sposobu przechowywania filamentu ABS, PLA, PET-G na właściwości wyrobów wytwarzanych przyrostowo metodą FDM
The influence of filament storage conditions on the properties of additively manufactured products using the FDM method
Autorzy:
Góralski, Błażej
Siergiej, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/37177989.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Zarządzania Produkcją
Tematy:
FDM
additive manufacturing
humidity
filament
moisture
ABS
PLA
PET-G
conditions
quality
tensile strength
wytwarzanie addytywne
wilgotność
wilgoć
warunki
jakość
wytrzymałość na rozciąganie
Opis:
The subject of the article is the influence of filament moisture on the quality of products manufactured using the additive method using the Fused Deposition Modelling (FDM) method. Three types of thermoplastic polymers were tested: ABS, PLA and PET-G. The polymers were stored in environments with different humidity. The moisture content of the filament was determined as the water content in the material expressed as a percentage by weight. To obtain the expected humidity of the samples, they were conditioned for 7 days in tightly closed containers with constant humidity of 40%, 60% and 80%. After the sample conditioning process was completed, they were removed from the container and subjected to further tests. The influence of filament humidity on selected properties of manufactured products is presented, such as: surface quality of the obtained samples, tensile strength and dimensional repeatability. To sum up, the method of storing the filament affects the moisture content of the filament. The humidity of the filament, in turn, affects the quality of products manufactured using the FDM method, including: on: mechanical properties, dimensional stability, Surface appearance. Therefore, it is important in what conditions the filament is stored before the production process begins.
Źródło:
Zarządzanie Przedsiębiorstwem; 2023, 26, 1; 7-11
1643-4773
Pojawia się w:
Zarządzanie Przedsiębiorstwem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental research on the volatilization and condensation of ammonium bisulfate as SCR byproduct
Autorzy:
Jiao, Kunling
Ma, Shuangchen
Chen, Xiangyang
Liu, Jiaming
Qiao, Lin
Powiązania:
https://bibliotekanauki.pl/articles/2174830.pdf
Data publikacji:
2022
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Ammonium bisulfate
ABS
influencing factors
volatilization rate
condensation pattern
Opis:
In this paper, the research progress of ammonium bisulfate (ABS) volatilization in coal-fired power plants the SCR denitrification process was reviewed. Combination with self-made experiments, SEM, flue gas analyzer and TG-DTG curves of ABS and ion chromatography. The volatilization and condensation characteristics of ABS were investigated carefully. Results show that as the temperature increased by 50 °C, the ABS/AS volatilization rate increased by an order of magnitude. The decomposition process of ABS should have a two-step reaction. The reaction in the initial volatilization stage is ABS dehydration turned into (NH4)2S2O7. The reaction in the rapid volatilization stage is (NH4)2S2O7 decomposed into NH3, N2, SO2 and H2O. There is an inter-section in the reac-tion temperature range (especially 300 °C) between the two-step reaction. This research provides an experimental basis for temperature control of ABS to avoid air pre-heater fouling.
Źródło:
Polish Journal of Chemical Technology; 2022, 24, 4; 30--38
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of 3D Printing Parameters by FDM Method on the Mechanical Properties of Manufactured Parts
Autorzy:
Zubrzycki, Jarosław
Quirino, Estrada
Staniszewski, Michał
Marchewka, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2206280.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
3D printing
line
honeycomb
PLA
ABS
PETG
3D printing strength
additive methods
Opis:
The manufacturing of machine parts with additive methods (AM) is of significant importance in modern industry. The development of 3D printers and all 3D printing technology is impressive. The ability to make parts quickly and relatively cheaply with AM gives excellent opportunities in terms of e.g., shortening the production preparation time. Proper selection of printing parameters allows for a significant reduction of printing time and production costs. Unfortunately, this has different consequences. Due to the course of the printing process and the parameters that can be set, the same product produced with different parameters has different mechanical properties - mainly different strength. This paper presents the impact of 3D printing parameters on the strength of manufactured parts. Strength tests were carried out on samples made in accordance with DIN EN ISO 527-1:2019. The samples were printed in technology FDM from three different materials, i.e. PLA (completely biodegradable), PETG (recycled material), and Smart ABS (material with minimal shrinkage). The tested samples were made in three levels of print filling - 10%, 30%, and 60% and with different types of filling - line, mesh, and honeycomb. A series of static tensile tests were carried out to determine the strength of the samples produced with different printing parameters. Thanks to the obtained test results, it is possible to select the optimal printing parameters depending on the forecast load of the manufactured parts.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 5; 52--63
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Flame Retardant and Processing Conditions on Selected Properties of Mouldings Made of ABS
Autorzy:
Trzaskalska, Milena
Powiązania:
https://bibliotekanauki.pl/articles/2174593.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
injection moulding
ABS
PS
TiO2
flame retardant
mechanical properties
Opis:
Thanks to dyeing of polymers, the possibilities of their use are constantly increasing. It is equally important to use additives that will have several functions. A perfect example is titanium dioxide used as an optical brightener and a flame retardant at the same time. Mostly it is used in the form of a powder. However, there are no studies where TiO2 is used as a colourbatch based on the different polymer matrix. The aim of the work was to investigate the effect of titanium white in the form of colourbatch on the flammability and selected properties of mouldings produced in various processing conditions. Colourbatch based on PS matrix, was used in the research. The variable processing parameters were: injection temperature Tw, volume flow rate Vw, residence time and the addition of a colourbatch. On the basis of the measurements, it was found that the processing conditions and the addition of the colourbatch have low effect on the hardness of the mouldings, which was in the range from 75.59° Sh D (Shore type D) to 81.95° Sh D. It was also noted that the addition of colourbatch with TiO2 and increasing injection temperature reduces impact strength even by several dozen percent. Moreover, it was found that use of TiO2 causes a delay in the ignitability of the samples in selected cases. It is difficult to determine whether the variable processing conditions or the addition of TiO2 on the PS matrix have a greater impact on the ignitability of the moulded parts.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 4; 1381-1386
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of the influence of printing parameters on the residual stress using numerical simulation
Autorzy:
Alzyod, Hussein
Ficzere, Péter
Powiązania:
https://bibliotekanauki.pl/articles/23944758.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
Fused Deposition Modeling
3D printing
residual stress
Digimat-AM
ABS
drukowanie 3D
wytwarzanie przyrostowe
naprężenia szczątkowe
Opis:
Fused Deposition Modeling is an additive manufacturing technology that is used to create a wide range of parts and applications. Along with its benefits, there are some challenges regarding the printed parts' mechanical properties, which are associated with printing parameters like layer thickness, printing speed, infill density, printing temperature, bed temperature, infill pattern, chamber temperature, and printing orientation. One of the most crucial challenges in additive manufacturing technology is the residual stress, which significantly affects the parts like fatigue life, cracks propagation, distortions, dimensional accuracy, and corrosion resistance. Residual stress is hard to detect in the components and sometimes is costly to investigate. Printing specimens with different parameters costs money and is timeconsuming. In this work, numerical simulation using Digimat-AM software was employed to predict and minimize the residual stress in printed Acrylonitrile Butadiene Styrene material using Fused Deposition Modeling technology. The printing was done by choosing six different printing parameters with three values for each parameter. The results showed a significant positive correlation between residual stress and printing temperature and infill percentage and a negative correlation with layer thickness and printing speed. At the same time, we found no effect of the bed temperature on the residual stress. Finally, the minimum residual stress was obtained with a concentric infill pattern.
Źródło:
System Safety : Human - Technical Facility - Environment; 2022, 4, 1; 150-156
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of kenaf loading on kenaf/ABS composites structure and thermal properties
Autorzy:
Mashelmie, S.
Rabiatul Manisah, M.
Bahiyah Baba, N.
Mohd, A.
Powiązania:
https://bibliotekanauki.pl/articles/2172154.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
kenaf fibre
ABS
polymer composites
MFI
TGA
DSC
włókna kenafu
kompozyty polimerowe
wskaźnik szybkości płynięcia
analiza termograwimetryczna
skaningowa kalorymetria różnicowa
Opis:
Purpose Many manufacturers have recently become interested in using fiber-reinforced polymer composites (FRPs) in structural applications. Synthetic fibres, such as carbon and glass fibres, have been commercialised internationally for decades, but they cause environmental issues because synthetic fibres are non-biodegradable and difficult to recycle once they have served their purpose, potentially polluting the environment. Thus, natural fibre composites like kenaf is a possible replacement for synthetic fibre due to their superior physical and mechanical properties. Kenaf appears to be the best candidate for replacing synthetic fibres in order to accomplish the goal of environmental preservation while also displaying excellent properties such as equivalent specific strength, low density, and renewable resources. Design/methodology/approach The kenaf fiber was treated in KOH and added to ABS matrix to produce new composites at different loading (10, 15, 20 and 25 wt.%) by using Two Roll Mill machine. The influence of the fiber on the composites properties was evaluated. The produced material was subjected to SEM, MFI, TGA and DSC analysis. Findings The incorporation of the treated kenaf fiber has an influence on the properties of kenaf/ABS composites. The addition of 10 wt.% kenaf was found to be the best loading with MFI value, initial degradation temperature and glass transition temperature at 0.8208 g/10 min, 322.63°C and 130°C respectively. The fiber was well dispersed in the matrix and shown good adhesion to the ABS. The addition of treated fiber contribute to a reduction in the MFI, improved the thermal stability of the composites and typical effects of Tg of the composite compare to pure ABS. Research limitations/implications The results suggest the need to continue the study in order to further analyse higher kenaf loading and shed more light on the properties of the composites to improve understanding of kenaf/ABS composites. Originality/value Obtained results are a solution to alternative of synthetic fibers, which may contribute to the sustainable development of composites materials industry through the utilization of kenaf fiber with ABS matrix.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2022, 111, 2; 49--56
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of part build orientations and sliding wear factors on tribological characteristics of FDM processed parts
Autorzy:
Alamro, Turki
Yunus, Mohammed
Alfattani, Rami
Alnaser, Ibrahim A.
Powiązania:
https://bibliotekanauki.pl/articles/1845032.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
FDM component
ABS polymer
tribological properties
part developing orientation
sliding wear
friction
komponent FDM
polimer ABS
właściwości trybologiczne
zużycie ślizgowe
tarcie
Opis:
Fused Deposition Modeling (FDM) components are commonly used for either prototypes or end products, mostly made of polymers. Polymers offer low frictional resistance to wear, so most of the engineering polymers find their increased usage in day-to-day industrial as well as domestic needs. The influence of many process controlling elements on the mechanical part properties is already being studied extensively, which demands the study of tribological characteristics like friction and wear rate under varying normal load (NL), sliding velocities (V) and part building orientations (PBO). The results showed a significant impact of the PBO and NL at various V on the tribological properties under various significant suitable sliding circumstances. Cracks were formed in the cylindrical tribometer specimens of Acrylonitrile butadiene styrene (ABS) fabricated at low PBO when operated at high NL, and V. Vertical PBO to the FDM building platform in the layers form where a number of inter-layers can bear maximum NL at higher values of V resulted in uniform wear and low frictions. Friction was noticed very low at minimum NL when PBO was 0° (horizontal) and 90° (vertical), but increased at high NL between PBO of 15° to 60°. The FDM parts improved compared to those from conventional manufacturing processes.
Źródło:
Archive of Mechanical Engineering; 2021, LXVIII, 3; 321-336
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fracture toughness of ABS additively manufactured by FDM process
Autorzy:
Aourik, O.
Othmani, M.
Saadouki, B.
Abouzaid, Kh.
Chouaf, A.
Powiązania:
https://bibliotekanauki.pl/articles/2055746.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
FDM
raster angle
ABS
tenacity
damage
simulation
grafika rastrowa
kąty rastra
wytrzymałość
uszkodzenia
symulacja
Opis:
Purpose: The purpose on this article is to study the failure of FDM printed ABS by exhibiting an exhaustive crack growth analysis mainly based on raster angle parameter. Design/methodology/approach: Two approaches have been developed in this study; On one hand, mechanical experiments were carried out to determine the critical stress intensity factor KIC. On the other hand, numerical analysis was used to predict the paths within the part as well as the crack propagation. Findings: This work has clearly shown the effect of raster angle on the damage mechanism of the ABS printed by FDM. Indeed, for the combination 1 (0°/90°), the structure presents an important stiffness and a high degree of stress distribution symmetry with respect to the notch. Moreover, the crack propagation is regular and straight, and the damage surfaces are on the same plane. However, for the combination 2 (-45°/45°), the structure is less resistant with an asymmetrical stress distribution according to two different planes. Research limitations/implications: In order to present an exhaustive study, we focused on the effect of two raster angles (including 0°/90°, -45°/45°) on the ABS crack propagation, additively manufactured. This study is still in progress for other raster angles, and will be developed from a design of experiments (DoE) design that incorporates all relevant factors. To highlight more the cracking mechanisms, microscopic observations will be developed in more depth. Practical implications: Our analysis can be used as a decision aid in the design of FDM parts. Indeed, we can choose the raster angle that would ensure the desired crack propagation resistance for a functional part. Originality/value: In this article, we have analyzed the mechanism of damage and crack propagation. This topic represents a new orientation for many research papers. For our study, we accompanied our experimental approach with an original numerical approach. In this numerical approach, we were able to mesh distinctly raster by raster for all layers.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2021, 109, 2; 49--58
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of printing direction on 3D printed ABS specimens
Autorzy:
Markiz, Nassim
Horváth, Eszter
Ficzere, Péter
Powiązania:
https://bibliotekanauki.pl/articles/1839511.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
additive manufacturing
ABS
tensile test
FDM
printing direction
produkcja dodatkowa
próba rozciągania
kierunek druku
Opis:
In the recent years, additive manufacturing became an interesting topic in many fields due to the ease of manufacturing complex objects. However, it is impossible to determine the mechanical properties of any additive manufacturing parts without testing them. In this work, the mechanical properties with focus on ultimate tensile strength and modulus of elasticity of 3D printed acrylonitrile butadiene styrene (ABS) specimens were investigated. The tensile tests were carried using Zwick Z005 loading machine with a capacity of 5KN according to the American Society for Testing and Materials (ASTM) D638 standard test methods for tensile properties of plastics. The aim of this study is to investigate the influence of printing direction on the mechanical properties of the printed specimens. Thus, for each printing direction ( and ), five specimens were printed. Tensile testing of the 3D printed ABS specimens showed that the printing direction made the strongest specimen at an ultimate tensile strength of 22 MPa while at printing direction it showed 12 MPa. No influence on the modulus of elasticity was noticed. The experimental results are presented in the manuscript.
Źródło:
Production Engineering Archives; 2020, 26, 3; 127-130
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of thermal degradation behavior and kinetics of ABS/PC blend
Autorzy:
Bano, Saira
Ramzan, Naveed
Iqbal, Tanveer
Mahmood, Hamayoun
Saeed, Farhan
Powiązania:
https://bibliotekanauki.pl/articles/778844.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ABS/PC blend
thermal degradation
iso-conversional analysis
activation energy
thermodynamic parameters
Opis:
This work investigated kinetics and thermal degradation of acrylonitrile butadiene styrene and polycarbonate (ABS/PC) blend using thermogravimetric analysis in the range of 25 to 520°C. For thermal degradation of blend, activation energy (Ea) and pre-exponential factor (A) were calculated under various heating rates as 5, 10, 15 and 20°C/min using iso-conversional model-free methods (Kissinger, Flynn-Wall- Ozawa and Friedman). Mass loss of the blend as a function of temperature was plotted as thermogravimetric curve (TG) while derivative values of mass loss were drawn as derivative thermogravimetric (DTG) curve. Using Kissinger method, Ea was 51.4 kJ/mol, while values calculated from FWO and Friedman method were 86–161 and 30–251 kJ/mol respectively. Results showed increasing trend of Ea with higher conversion values indicating different degradation mechanisms at the initial and final stages of the experiment. Thermodynamic parameters such as enthalpy change (ΔH), Gibbs free energy (ΔG) and entropy change (ΔS) were also calculated.
Źródło:
Polish Journal of Chemical Technology; 2020, 22, 3; 64-69
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface treatment of incrementally produced components in FFF (Fused Filament Fabrication) technology
Obróbka powierzchniowa elementów wytwarzanych przyrostowo w technologii FFF (Fused Filament Fabrication)
Autorzy:
Mrówka, Maciej
Machoczek, Tomasz
Szymiczek, Małgorzata
Gągol, Przemysław
Duda, Sławomir
Marcoll, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/946976.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
FFF (Fused Filament Fabrication)
polylactide (PLA)
acrylonitrile-butadiene-styrene (ABS)
surface treatment
surface roughness
polilaktyd (PLA)
kopolimer akrylonitrylo-butadieno-styrenowy (ABS)
obróbka powierzchniowa
chropowatość powierzchni
Opis:
The aim of the conducted research was to examine the possibility of using chemical and physical methods of surface treatment of elements printed on a 3D printer. Elements were printed from polylactide (PLA) and acrylonitrile-butadiene-styrene (ABS) – materials most commonly used in fused filament fabrication (FFF) technology. Roughness measurements were made to assess the quality of individual methods. The best surface smoothness results were obtained during abrasive paper processing and after applying epoxy resin. The intended effect was also obtained after processing samples from PLA in chloroform fumes, and ABS samples in acetone vapors.
Zbadano możliwości wykorzystania chemicznych i fizycznych metod obróbki powierzchniowej elementów wydrukowanych za pomocą drukarki 3D. Elementy wytworzono z polilaktydu (PLA) i kopolimeru akrylonitrylo-butadieno-styrenowego (ABS) – materiałów najpowszechniej stosowanych w technologii Fused Filament Fabrication (FFF). Jakość wykonania przy użyciu poszczególnych metod oceniano na podstawie chropowatości powierzchni wytworzonych elementów. Najlepszą gładkość powierzchni uzyskano w wyniku obróbki wydrukowanych elementów papierami ściernymi i nałożeniu żywicy epoksydowej. Zamierzony efekt uzyskano też w wyniku obróbki próbek z PLA w oparach chloroformu, a próbek z ABS w oparach acetonu.
Źródło:
Polimery; 2020, 65, 1; 51-59
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of the Selected Parameters of FDM Manufacturing Technology on Tribological Performance of ABS–Steel Pair under Dry Friction
Wpływ wybranych parametrów technologii wytwarzania fdm na charakterystyki tribologiczne pary ABS–stal w warunkach tarcia suchego
Autorzy:
Suwińska, Katarzyna
Łubiński, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/188041.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
FDM
ABS
3D printing
tribology
dry friction
steel
druk 3D
tribologia
tarcie suche
stal
Opis:
The paper presents the result of tribological test of ABS and steel samples sliding under dry friction. Polymeric samples were manufactured of ABS material using FDM technology. Testing was carried out in unidirectional sliding in a ring-on-flat contact in a PT-3 tribometer. The scope of tested parameters included volumetric and mass wear, the friction coefficient, and polymeric specimen temperature. Polymeric specimens used in the study were manufactured at various settings of the 3D printing process such as the orientation of the specimen in print with respect to the printer building tray and the thickness of a single layer of the deposited material. Comparisons of the impact of these parameters on tribological performance of the sliding contact were analysed.
Przedstawiono wyniki badań tribologicznych pary ABS – stal w warunkach tarcia suchego. Polimerowa próbka została wykonana z materiału ABS przy użyciu metody FDM. Testy jednokierunkowego tarcia w układzie pierścień – tarcza przeprowadzono na Tribometrze PT-3. Analizowanymi parametrami były zużycie masowe i objętościowe, współczynnik tarcia oraz temperatura próbki polimerowej. Próbki polimerowe zostały wyprodukowane przy różnych parametrach procesu druku 3D, takich jak: orientacja próbki w stosunku do platformy drukarki oraz grubość drukowanej warstwy. Przeprowadzono szczegółową analizę wpływu tych parametrów na charakterystyki tribologiczne badanego skojarzenia ślizgowego.
Źródło:
Tribologia; 2020, 290, 2; 85-89
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza dokładności odwzorowania modeli CAD części polimerowych wytwarzanych z zastosowaniem reprezentatywnych technik addytywnych w procesie produkcji w konwencji Przemysł 4.0
Accuracy analysis of the CAD models reproduction for polymers parts, produced using additive manufacturing at manufacturing process based on Industry 4.0 convention
Autorzy:
Cader, Maciej
Zaborniak, Małgorzata
Stączek, Michał
Powiązania:
https://bibliotekanauki.pl/articles/947357.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
techniki addytywne
produkcja części
ABS
żywice światłoutwardzalne
analiza dokładności
reprodukcja
Przemysł 4.0
additive manufacturing
parts manufacturing
UV light-cured resins
accuracy analysis
reproduction
Industry 4.0
Opis:
Przedstawiono metodykę oraz wyniki oceny jakości części maszyn wytworzonych bezpośrednio z modelu numerycznego CAD 3D. Analizowano właściwości części otrzymanych za pomocą reprezentatywnych technik addytywnych opartych na przetwarzaniu polimerów oraz światłoczułych żywic. Cały proces wytwarzania części prowadzono zgodnie z konwencją Przemysł 4.0. Ocena dokładności odtwarzania modeli numerycznych CAD obejmowała zarówno jakość powierzchni zewnętrznych i objętość wytworzonych części, jak i stopień odwzorowania wymiarów.
This paper presents the methodology and quality assessment results for machine parts produced directly from CAD 3D numerical model. The parts were produced using representative additive manufacturing technologies based on polymers and UV light-cured resins processing and their properties were analyzed. The whole process was conducted according to Industry 4.0 convention. The assessment of the reproduction accuracy of CAD 3D models covered the quality of external surfaces, volume of manufactured parts as well as dimension accuracy.
Źródło:
Polimery; 2019, 64, 6; 436-441
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wpływu oddziaływania systemu abs na drogę hamowania
Analysis of the impact of the abs system on the braking distance
Autorzy:
Gorzejewski, Mateusz
Markiewicz, Marietta
Powiązania:
https://bibliotekanauki.pl/articles/2055878.pdf
Data publikacji:
2019
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
bezpieczeństwo czynne
hamowanie
droga hamowania
system ABS
samochód
active safety
braking
braking distance
ABS system
car
Opis:
Każdego roku zwiększa się liczba pojazdów poruszających się po drogach. Produkowane samochody osiągają coraz większą moc znamionową, przy coraz mniejszej masie oraz pojemności silnika. W niniejszym opracowaniu prowadzone badania dotyczyły pomiaru drogi hamowania pojazdów, które podzielone zostały na dwie grupy: z systemem ABS oraz nieposiadające systemu ABS. Celem badań było określenie wpływu działania systemu wspomagającego proces hamowania pojazdów na różnego rodzaju nawierzchniach, z uwzględnieniem rodzaju ogumienia, zmiennej prędkości jazdy oraz różnych warunków atmosferycznych. Analizując uzyskane wyniki badań, jednoznacznie można stwierdzić, że wyposażenie pojazdu w system ABS przynosi pożądane korzyści i zwiększa bezpieczeństwo jazdy.
Every year, the number of vehicles traveling on the road increases. Manufactured cars achieve increasing power rating, with less and less mass and engine capacity. In this study, the research involved measuring the braking distance of vehicles that were divided into two groups: with the ABS system and those without the ABS system. The purpose of the research was to determine the impact of the system supporting the braking process of vehicles on various types of surfaces, including the type of tires, variable speed and various weather conditions. Analyzing the obtained test results, it can be clearly stated that equipping the vehicle with the ABS system brings the desired benefits and increases driving safety.
Źródło:
Postępy w Inżynierii Mechanicznej; 2019, nr 13(7); 5--12
2300-3383
Pojawia się w:
Postępy w Inżynierii Mechanicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 71

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