39 results on '"Ultem"'
Search Results
2. Effect of Encapsulating Materials on Monopole Antenna Performance for Underwater Communication
- Author
-
Mujawar, Mehaboob, Gunasekaran, T., Chlamtac, Imrich, Series Editor, Malik, Praveen Kumar, editor, Lu, Joan, editor, Madhav, B T P, editor, Kalkhambkar, Geeta, editor, and Amit, Swetha, editor
- Published
- 2022
- Full Text
- View/download PDF
3. Evaluation of the Fire-retardancy of ULTEM 9085 Polymer Composites Processed by Fused Deposition Modelling
- Author
-
Yifan LV, Didzis DEJUS, Stepans KOBENKO, Sarat SINGAMNENI, and Tatjana GLASKOVA-KUZMINA
- Subjects
additive manufacturing ,fire retardant polymers ,aircraft industry ,ultem ,fused deposition modelling (fdm) ,Mining engineering. Metallurgy ,TN1-997 - Abstract
In the paper, the results obtained for the fire-retardancy of ULTEM 9085 polymer composites manufactured by the fused deposition modelling (FDM) are summarized. The effects of processing parameters of FDM such as the percentage of infill, thickness of the sample, and the number of the solid layers on either side were experimentally evaluated against fire-retardancy parameters (burn length and heat release rate). Based on the results, all test samples of ULTEM 9085 were observed to have passed the test requirements specified in Federal Aviation Regulation (FAR) & EASA Certification Specifications (CS) Part 25 of Airworthiness standards for the aviation sector. The maximal burn length (approx. 80 mm) was registered for 30 % infill samples with zero solid layers on either side. Based on the results obtained it was concluded that the burn length was almost the same in all build directions. Moreover, inconsistent results were obtained for the heat release rate as a function of the thickness of the sample for different build directions. Though, certain clear effects were obtained regarding burn length as a function of infill percentage proving that fire-retardancy is the most effective at higher infill percentages.
- Published
- 2022
- Full Text
- View/download PDF
4. Design and evaluation of additively manufactured polyetherimide orbital debris shielding for spacecraft.
- Author
-
Feier, Ioan I., Anderson, Michael L., Boudrie, James R., Jarrett-Izzi, Erin M., Gabriel, Jonathon L., Overby, Kaleb D., Niebuhr, Jason H., Mead, Paul T., Kota, Kalyan R., and Lacy, Thomas E.
- Subjects
- *
SPACE debris , *IMPACT testing , *HYPERVELOCITY , *AEROSPACE materials , *METEOROIDS - Abstract
• Novel shields were created through additive manufacturing (AM) to protect spacecraft from micormeteroids and orbital debris. • The shields used Ultem 1010 and 9085, which are promising polyetherimide (PEI) materials for aerospace use. • Specimens underwent hypervelocity impact testing and survived projectiles traveling up to 6.5 km/s. • Specimens were simulated using the multi-physics finite element code CTH. • Analysis shows that CTH can be used as a design tool for AM PEI. The increasingly congested orbital environment around Earth threatens the safety of space assets. Micrometeoroids and orbital debris (MMOD) less than 1 cm but traveling at hypervelocities pose a serious but defensible hazard. Traditional shields are installed during spacecraft assembly and must survive launch loads, constraining their size, shape, and ultimately, effectiveness. Recent advances in on-orbit additive manufacturing have created new opportunities for shield design and deployment. This work describes the modeling and testing of additively manufactured polyetherimide shields. The finite element code CTH was used to model hypervelocity impacts (HVIs) of such shields, and though imperfect, the models were useful for shield design. Several shield designs were additively manufactured and underwent HVI testing with a two-stage light gas gun in the regime of 4 mm diameter aluminum projectile impacts at 5 - 6.5 km/s. All successfully survived the HVIs, indicating their potential effectiveness as MMOD spacecraft shielding. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
5. Effect of Post-Printing Cooling Conditions on the Properties of ULTEM Printed Parts.
- Author
-
Glaskova-Kuzmina, Tatjana, Dejus, Didzis, Jātnieks, Jānis, Aniskevich, Andrey, Sevcenko, Jevgenijs, Sarakovskis, Anatolijs, and Zolotarjovs, Aleksejs
- Subjects
- *
FUSED deposition modeling , *THERMOPHYSICAL properties , *DYNAMIC mechanical analysis , *COMPUTER printers , *COOLING , *TENSILE tests - Abstract
This paper aimed to estimate the effect of post-printing cooling conditions on the tensile and thermophysical properties of ULTEM® 9085 printed parts processed by fused deposition modeling (FDM). Three different cooling conditions were applied after printing Ultem samples: from 180 °C to room temperature (RT) for 4 h in the printer (P), rapid removal from the printer and cooling from 200 °C to RT for 4 h in the oven (O), and cooling at RT (R). Tensile tests and dynamic mechanical thermal analysis (DMTA) were carried out on samples printed in three orthogonal planes to investigate the effect of the post-printing cooling conditions on their mechanical and thermophysical properties. Optical microscopy was employed to relate the corresponding macrostructure to the mechanical performance of the material. The results obtained showed almost no difference between samples cooled either in the printer or oven and a notable difference for samples cooled at room temperature. Moreover, the lowest mechanical performance and sensitivity to the thermal cooling conditions were defined for the Z printing direction due to anisotropic nature of FDM and debonding among layers. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
6. Extrusion Additive Manufacturing of PEI Pellets.
- Author
-
Fabrizio, Matteo, Strano, Matteo, Farioli, Daniele, and Giberti, Hermes
- Subjects
METALWORK ,RAPID tooling ,SHEET metal ,WOOD pellets ,PRINT materials ,THERMAL properties - Abstract
The simplest, most cost-efficient, and most widespread Additive Manufacturing (AM) technology is Extrusion Additive Manufacturing (EAM). Usually, EAM is performed with filament feedstock, but using pellets instead of filaments yields many benefits, including significantly lower cost and a wider choice of materials. High-performance polymers offer high strength even when produced with AM technique, allowing to produce near-net-shape functional parts. The production of these materials in filament form is still limited and expensive; therefore, in this paper, the possibility of producing AM components with engineering polymers from pellets will be thoroughly investigated. In this work, the effectiveness of a specially designed AM machine for printing high-performance materials in pellet form was tested. The material chosen for the investigation is PEI 1000 which offers outstanding mechanical and thermal properties, giving the possibility to produce with EAM functional components. Sensitivity analyses have been carried out to define a process window in terms of thermal process parameters by observing different response variables. Using the process parameters in the specified range, the additive manufactured material has been mechanically tested, and its microstructure has been investigated, both in dried and undried conditions. Finally, a rapid tool for sheet metal forming has been produced. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
7. Spray-dried composite microparticles of polyetherimide and LaNi5 as a versatile material for hydrogen storage applications.
- Author
-
de Almeida Neto, Gabriel Rodrigues, Gonçalves Beatrice, Cesar Augusto, and Pessan, Luiz Antonio
- Subjects
- *
HYDROGEN storage , *SPRAY drying , *GLASS transition temperature , *DIFFERENTIAL scanning calorimetry , *FACTORIAL experiment designs , *FRUIT drying - Abstract
Despite promising results for the encapsulation of sensitive components, spray drying hasn't been properly explored to produce energy storage powders. This study produced polyetherimide/LaNi 5 (40/60 wt%) microparticles by spray drying for hydrogen storage and comprehensively characterize their morphological, thermal, and hydrogen sorption properties. First, the effects of spray drying parameters on microparticle size and morphology were evaluated by a 23 full factorial design. Samples were collected from the collector flask and the cyclone wall, differing particularly in the LaNi 5 weight fraction. The microparticles had a wrinkled surface, but the polyetherimide matrix successfully encapsulated the LaNi 5 particles. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) revealed that the glass transition temperature (T g) and the onset of polyetherimide thermal degradation are inversely related to the LaNi 5 fraction. The microparticles absorbed hydrogen without incubation time, reaching maximum capacity of 0.4 wt% and 0.3 wt% for the samples from the cyclone and the collector. The H 2 capacity reduced after the first cycle. Spray drying effectively produced elastic microparticles where the polymer phase anchors the LaNi 5 particles through the H 2 absorption cycles, maintaining a constant morphology and thus an improved dimensional stability. • Polyetherimide successfully encapsulated LaNi 5 particles by spray drying. • Polyetherimide concentration in solution significantly affects the microparticle size. • There was a loss of H 2 capacity after the first cycle. • The samples reached maximum H 2 storage capacity at R.T. in less than 4 min. • Polyetherimide successfully accommodated the cyclic expansion of the LaNi 5 particles. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
8. CO2 separation of a novel Ultem‐based mixed matrix membrane incorporated with Ni2+‐exchanged zeolite X.
- Author
-
Nematolahi, Kimiya, Salehi, Ehsan, Ebadi Amooghin, Abtin, and Sanaeepur, Hamidreza
- Subjects
ZEOLITES ,FOURIER transform infrared spectroscopy ,TRANSITION metal ions ,SURFACE diffusion ,ELECTRON pairs - Abstract
In this study, polyetherimide (Ultem) was chosen as a polymeric matrix, and micron‐sized Ni2+‐exchanged nano‐porous NaX zeolite was selected as an inorganic filler to fabricate novel mixed matrix membranes (MMMs) for CO2 separation. Fabricated membranes were evaluated by Differential scanning calorimeter, Fourier transform infrared spectroscopy, X‐ray diffraction, scanning electron microscopy, and energy dispersive X‐ray. The influences of filler loading (0–5 wt.%) and feed pressure (2–10 bar) on gas separation properties were surveyed. CO2/N2 ideal selectivity of 3 wt.% NiX loaded MMM (optimum MMM) was increased to 34 (about 36%) compared to 25 for the pristine membrane. Furthermore, CO2 permeability was improved by about 45%, from 1.3 Barrer for the pure membrane to 1.88 Barrer for MMM containing 3 wt.% functionalized filler. These improvements originate from a combination of the inherent surface diffusion mechanism of zeolite X and reversible reaction between free orbitals of transition metal ions (Ni2+) and electron pairs of CO2 molecules. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
9. Extrusion Additive Manufacturing of PEI Pellets
- Author
-
Matteo Fabrizio, Matteo Strano, Daniele Farioli, and Hermes Giberti
- Subjects
thermal parameters ,ULTEM ,3D printing ,material extrusion additive manufacturing ,process window ,mechanical testing ,rapid tooling ,high strength polymer ,PEI ,Mechanics of Materials ,Mechanical Engineering ,Industrial and Manufacturing Engineering - Abstract
The simplest, most cost-efficient, and most widespread Additive Manufacturing (AM) technology is Extrusion Additive Manufacturing (EAM). Usually, EAM is performed with filament feedstock, but using pellets instead of filaments yields many benefits, including significantly lower cost and a wider choice of materials. High-performance polymers offer high strength even when produced with AM technique, allowing to produce near-net-shape functional parts. The production of these materials in filament form is still limited and expensive; therefore, in this paper, the possibility of producing AM components with engineering polymers from pellets will be thoroughly investigated. In this work, the effectiveness of a specially designed AM machine for printing high-performance materials in pellet form was tested. The material chosen for the investigation is PEI 1000 which offers outstanding mechanical and thermal properties, giving the possibility to produce with EAM functional components. Sensitivity analyses have been carried out to define a process window in terms of thermal process parameters by observing different response variables. Using the process parameters in the specified range, the additive manufactured material has been mechanically tested, and its microstructure has been investigated, both in dried and undried conditions. Finally, a rapid tool for sheet metal forming has been produced.
- Published
- 2022
- Full Text
- View/download PDF
10. Lightweight hybrid composite sandwich structures with additively manufactured cellular cores.
- Author
-
Forés-Garriga, Albert, Gómez-Gras, Giovanni, and Pérez, Marco A.
- Subjects
- *
HYBRID materials , *FOAM , *COMPOSITE structures , *MANUFACTURING cells , *COREMAKING , *SANDWICH construction (Materials) , *HONEYCOMB structures - Abstract
This study focuses on advancing sandwich structures by designing and fabricating complex two- and three-dimensional cellular cores combined with Carbon Fiber Reinforced Polymer (CFRP) skins. Numerical analysis is used to investigate the effect of core design and density on the bending performance. Optimal configurations are identified and experimentally validated. Professional Fused Filament Fabrication (FFF) equipment with a heating chamber is employed for manufacturing the core samples to enhance layer cohesion and material joint stiffness. A high-performance technical polymer with a superior strength-to-weight ratio is employed to maximize structural capabilities. Hybrid sandwich structures with PEI Ultem cellular cores demonstrate stiffness and strength comparable to reference materials, outperforming foam cores while slightly trailing behind Nomex® and aluminum honeycombs. In addition, the results demonstrate more efficient cell morphologies achievable through additive manufacturing technologies, surpassing the hexagonal design. This work provides valuable insights into hybrid composite materials and the potential of additive manufacturing in creating lightweight, high-performance sandwich panels. • AM enables efficient sandwich core designs, surpassing honeycomb structures. • AM cellular cores outperform polyurethane foams in sandwich structures. • TPMS designs printed with continuous deposition paths strengthens cell joints. • Single-contour two-dimensional patterns offer superior weight reduction. • Thinner walls and combined-material printers could provide more efficient designs. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
11. An Analysis of Polymer Gear Wear in a Spur Gear Train Made Using FDM and FFF Methods Based on Tooth Surface Topography Assessment
- Author
-
Jadwiga Pisula, Paweł Turek, Grzegorz Budzik, and Mariusz Cieplak
- Subjects
wear ,Materials science ,FDM ,Polymers and Plastics ,Organic chemistry ,Fused filament fabrication ,02 engineering and technology ,ABS ,Article ,chemistry.chemical_compound ,Gear train ,QD241-441 ,0203 mechanical engineering ,Operating temperature ,PEEK ,Peek ,Composite material ,ULTEM ,Acrylonitrile butadiene styrene ,Tooth surface ,spur gears ,General Chemistry ,021001 nanoscience & nanotechnology ,Polyetherimide ,Mechanism (engineering) ,020303 mechanical engineering & transports ,chemistry ,topography of gear tooth ,0210 nano-technology - Abstract
This article focuses on wear tests of spur gears made with the use of additive manufacturing techniques from thermoplastic materials. The following additive manufacturing techniques were employed in this study: Melted and Extruded Modelling (FDM) and Fused Filament Fabrication (FFF). The study analysed gears made from ABS M-30 (Acrylonitrile Butadiene Styrene), ULTEM 9085 (PEI Polyetherimide) and PEEK (Polyetheretherketone), and the selection of these materials reflects their hierarchy in terms of economical application and strength parameters. A test rig designed by the authors was used to determine the fatigue life of polymer gears. Gear trains were tested under load in order to measure wear in polymer gears manufactured using FDM and FFF techniques. In order to understand the mechanism behind gear wear, further tests were performed on a P40 coordinate measuring machine (CMM) and a TalyScan 150 scanning instrument. The results of the gear tests made under load allow us to conclude that PEEK is resistant to wear and gear train operating temperature. Its initial topography undergoes slight changes in comparison to ABS M-30 and Ultem 9085. The biggest wear was reported for gears made from Ultem 9085. The hardness of the material decreased due to the loaded gear train’s operating temperature.
- Published
- 2021
- Full Text
- View/download PDF
12. Influence of the electrostatic interactions on thermophysical properties of polyimides: Molecular-dynamics simulations.
- Author
-
Falkovich, Stanislav G., Lyulin, Sergey V., Nazarychev, Victor M., Larin, Sergey V., Gurtovenko, Andrey A., Lukasheva, Natalia V., and Lyulin, Alexey V.
- Subjects
- *
ELECTROSTATIC analyzers , *THERMOPHYSICAL properties , *POLYIMIDES , *PHYSICAL & theoretical chemistry , *THERMAL properties , *GLASS transition temperature - Abstract
ABSTRACT Revealing the way of how modification of the chemical structure of a polymer affects its macroscopic physical properties offers an opportunity to develop novel polymer materials with pre-defined characteristics. To address this problem two thermoplastic polyimides, ULTEM™ and EXTEM™, were simulated with small difference in chemical structures of monomer units, namely, the phenyl ring in ULTEM™ was replaced by the diphenylsulphone group in EXTEM™. It is shown that such a small modification results in a drastic difference of the thermal properties: the glass transition temperature of EXTEM™ is higher than that of ULTEM™. Our molecular-dynamics simulations clearly demonstrated that it is the electrostatic interactions that are responsible for the observed difference in thermal properties of ULTEM™ and EXTEM™: large partial charges of the sulphone group in the EXTEM™ lead to strong dipole-dipole intra- and intermolecular interactions and correspondingly to an elevated glass transition temperature. © 2014 Wiley Periodicals, Inc. J. Polym. Sci. Part B: Polym. Phys. 2014, 52, 640-646 [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
13. Open Source High-Temperature RepRap for 3-D Printing Heat-Sterilizable PPE and Other Applications
- Author
-
Noah G. Skrzypczak, Nagendra Gautam Tanikella, Joshua M. Pearce, Department of Electrical & Computer Engineering, Michigan Technological University (MTU), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Michigan Technological University, Department of Communications and Networking, Department of Electronics and Nanoengineering, Aalto-yliopisto, and Aalto University
- Subjects
Open hardware ,Materials science ,Medical hardware ,Additive manufacturing ,Biomedical Engineering ,high temperature 3-D printing ,Core (manufacturing) ,01 natural sciences ,Article ,Industrial and Manufacturing Engineering ,[SPI]Engineering Sciences [physics] ,03 medical and health sciences ,chemistry.chemical_compound ,Ultimate tensile strength ,Thermal ,mechanical_engineering ,Composite material ,lcsh:Science (General) ,Instrumentation ,ComputingMethodologies_COMPUTERGRAPHICS ,030304 developmental biology ,Civil and Structural Engineering ,Distributed manufacturing ,Space heater ,0303 health sciences ,3-D printing ,open source medical hardware ,Polytetrafluoroethylene ,Open source medical hardware ,ULTEM ,Mechanical Engineering ,RepRap ,010401 analytical chemistry ,Delamination ,COVID-19 ,High temperature 3-D printing ,Open source ,Polyetherimide ,0104 chemical sciences ,Polyetherketoneketone ,polycarbonate ,Polycarbonate ,chemistry ,Extrusion ,additive manufacturing ,lcsh:Q1-390 - Abstract
Graphical abstract, Thermal sterilization is generally avoided for 3-D printed components because of the relatively low deformation temperatures for common thermoplastics used for material extrusion-based additive manufacturing. 3-D printing materials required for high-temperature heat sterilizable components for COVID-19 and other applications demands 3-D printers with heated beds, hot ends that can reach higher temperatures than polytetrafluoroethylene (PTFE) hot ends and heated chambers to avoid part warping and delamination. There are several high temperature printers on the market, but their high costs make them inaccessible for full home-based distributed manufacturing required during pandemic lockdowns. To allow for all these requirements to be met for under $1,000, the Cerberus – an open source three-headed self-replicating rapid prototyper (RepRap) was designed and tested with the following capabilities: i) 200°C-capable heated bed, ii) 500°C-capable hot end, iii) isolated heated chamber with 1kW space heater core and iv) mains voltage chamber and bed heating for rapid start. The Cereberus successfully prints polyetherketoneketone (PEKK) and polyetherimide (PEI, ULTEM) with tensile strengths of 77.5 and 80.5 MPa, respectively. As a case study, open source face masks were 3-D printed in PEKK and shown not to warp upon widely home-accessible oven-based sterilization.
- Published
- 2020
- Full Text
- View/download PDF
14. Towards identifying the new structures formed on the <f>γ</f>-radiolysis of Ultem
- Author
-
Brereton, Ian, Devasahayam, Sheila, Hill, David J.T., and Whittaker, Andrew K.
- Subjects
- *
PROTON-proton interactions , *NUCLEAR magnetic resonance spectroscopy , *IMIDES , *SPECTRUM analysis - Abstract
Ultem irradiated up to 10.0 MGy has been analysed using 13C, 1H and 2D proton–carbon and proton–proton correlation NMR spectroscopy to shed light on the formation of new structures. Chemical shifts and correlation data were used to determine the structure or partial structures of several new components. The spectra indicated the presence of new groups and structures involving the isopropylidene group, the imide ring, and hydrogen-abstraction reactions. Possible pathways for formation of the new structures are proposed and the
G -values for their formation have been estimated. [Copyright &y& Elsevier]- Published
- 2004
- Full Text
- View/download PDF
15. Preparation and characterization of ultrathin polymeric films
- Author
-
Pientka, Zbyněk, Brožová, Libuše, Bleha, Miroslav, and Puri, Pushpinder
- Subjects
- *
THIN films , *PERMEABILITY - Abstract
Thin films of polyetherimide polymer (Ultem) were prepared and laminated over PPO support films. The Ultem films with thickness ranging from 60 to 815 nm were examined by optical microscopy and atomic force microscopy (AFM) and characterized by gas transport measurements. The Ultem films of 60 and 150 nm showed a slightly higher selectivity for the various gas pairs suggesting the morphology of ultrathin Ultem films must differ from that of the thick films. [Copyright &y& Elsevier]
- Published
- 2003
- Full Text
- View/download PDF
16. The radiation chemistry of ultem at 77 K as revealed by ESR spectroscopy
- Author
-
Devasahayam, Sheila, Hill, David J.T., Pomery, Peter J., and Whittaker, Andrew K.
- Subjects
- *
RADICALS (Chemistry) , *ELECTRON paramagnetic resonance spectroscopy - Abstract
Radical formation in ultem following
γ -radiolysis has been reassessed, and theG(R*) values at different temperatures have been determined by ESR spectroscopy. The radical assignment and radical reactivity have been re-examined by photobleaching and thermal annealing studies. Photobleachable radical anions were found to comprise ≈40% of the total number of radicals formed on radiolysis at 77 K. Spectral subtraction methods, ESR spectral simulations, measurement of g-values and the hyperfine splitting constants were used to identify the other radical intermediates. The principal chain scission radicals are formed due to scission of the main-chain at (i) the ether linkage, (ii) the isopropylidene group and (iii) the imide ring in the main chain. The side chain methyl groups of the isopropylidine units also lose hydrogen to form methylene radicals. The five-line spectrum observed to decay in the temperature range 370–430 K, which has not been assigned previously, has been identified as being characteristic of a di-substituted benzyl radical. [Copyright &y& Elsevier]- Published
- 2002
- Full Text
- View/download PDF
17. An Analysis of Polymer Gear Wear in a Spur Gear Train Made Using FDM and FFF Methods Based on Tooth Surface Topography Assessment.
- Author
-
Pisula, Jadwiga, Budzik, Grzegorz, Turek, Paweł, Cieplak, Mariusz, Klapiszewski, Łukasz, and Sorrentino, Luigi
- Subjects
SPUR gearing ,SURFACE topography ,ACRYLONITRILE butadiene styrene resins ,COORDINATE measuring machines ,FATIGUE life ,POLYMERS - Abstract
This article focuses on wear tests of spur gears made with the use of additive manufacturing techniques from thermoplastic materials. The following additive manufacturing techniques were employed in this study: Melted and Extruded Modelling (FDM) and Fused Filament Fabrication (FFF). The study analysed gears made from ABS M-30 (Acrylonitrile Butadiene Styrene), ULTEM 9085 (PEI Polyetherimide) and PEEK (Polyetheretherketone), and the selection of these materials reflects their hierarchy in terms of economical application and strength parameters. A test rig designed by the authors was used to determine the fatigue life of polymer gears. Gear trains were tested under load in order to measure wear in polymer gears manufactured using FDM and FFF techniques. In order to understand the mechanism behind gear wear, further tests were performed on a P40 coordinate measuring machine (CMM) and a TalyScan 150 scanning instrument. The results of the gear tests made under load allow us to conclude that PEEK is resistant to wear and gear train operating temperature. Its initial topography undergoes slight changes in comparison to ABS M-30 and Ultem 9085. The biggest wear was reported for gears made from Ultem 9085. The hardness of the material decreased due to the loaded gear train's operating temperature. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
18. The Hugoniot and Strength of Ultem 1000 Polyetherimide
- Author
-
Neel, Christopher and Chhabildas, Lalit
- Published
- 2015
- Full Text
- View/download PDF
19. Open source high-temperature RepRap for 3-D printing heat-sterilizable PPE and other applications.
- Author
-
Skrzypczak NG, Tanikella NG, and Pearce JM
- Abstract
Thermal sterilization is generally avoided for 3-D printed components because of the relatively low deformation temperatures for common thermoplastics used for material extrusion-based additive manufacturing. 3-D printing materials required for high-temperature heat sterilizable components for COVID-19 and other applications demands 3-D printers with heated beds, hot ends that can reach higher temperatures than polytetrafluoroethylene (PTFE) hot ends and heated chambers to avoid part warping and delamination. There are several high temperature printers on the market, but their high costs make them inaccessible for full home-based distributed manufacturing required during pandemic lockdowns. To allow for all these requirements to be met for under $1000, the Cerberus - an open source three-headed self-replicating rapid prototyper (RepRap) was designed and tested with the following capabilities: i) 200 °C-capable heated bed, ii) 500 °C-capable hot end, iii) isolated heated chamber with 1 kW space heater core and iv) mains voltage chamber and bed heating for rapid start. The Cereberus successfully prints polyetherketoneketone (PEKK) and polyetherimide (PEI, ULTEM) with tensile strengths of 77.5 and 80.5 MPa, respectively. As a case study, open source face masks were 3-D printed in PEKK and shown not to warp upon widely home-accessible oven-based sterilization., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2020 The Author(s).)
- Published
- 2020
- Full Text
- View/download PDF
20. Rasters vs Contours For Thin Wall ULTEM 9085 FDM Applications
- Author
-
Kota, Vasuman
- Subjects
- Mechanical Engineering, additive manufacturing, 3D Printing, FDM, ULTEM, Polyethermide
- Abstract
Currently many components are additively manufactured via fused deposition modeling (FDM). However, FDM results in gaps between passes which produces a poor surface finish and porous material that is difficult to hold pressure. Commercial scale air systems require a pressure to be maintained within thin walled components with minimal post processing and clean up after fabrication. A design of experiments (DOE) was created to identify the optimal raster vs contour ratio for UTLEM 9085 CG fabricated using FDM at different build angles and wall thicknesses. A custom-built pressurized test system was developed, the leak rates were calculated and the surfaces were analyzed microscopically. In addition, a statistical analysis was performed at a 95% confidence interval to identify the range of leak rates that could be expected at each thickness and build angle. Results can be used to optimize the FDM process and component geometries for pressurized applications.
- Published
- 2019
21. A Nacreous Self-Assembled Nanolaminate for Corrosion Resistance on 2024-Al Alloy
- Author
-
Gordon, Matthew, Materials Science and Engineering, Corcoran, Sean G., Davis, Richey M., Kander, Ronald G., and Reynolds, William T. Jr.
- Subjects
inorganic chemicals ,ESAM ,Ultem ,chromate conversion coating ,aluminum ,self assembly ,AFM ,biomimetic ,ISAM ,complex mixtures ,polyelectrolyte - Abstract
Nanometer thick layers of clay and polymer were formed on mica, silicon, and aluminum 2024-T3 alloy using alternating solutions of positively and negatively charged polymer and clay, respectively. Atomic force microscopy was used to observe the morphology of the composite films on mica and silicon. It was found that solution concentrations of clay above 0.02 weight percent lead to the uncontrolled deposition of clay platelets on the substrate's surface. By using solution concentrations of clay above 0.02 weight percent and ultrasonic agitation together it is possible to deposit a uniform monolayer of clay platelets on a mica substrate in £ 20 seconds. Ultrasonic agitation also produced crude patterns of montmorillonite platelets. Thin films of poly(diallydimethylammonium chloride) (PDDA) were made using concentrations ³ 2 weight percent of PDDA. It was found that the PDDA formed several unusual morphologies. Spherulites of PDDA were observed with AFM and the glass transition temperature of high molecular weight PDDA was measured using differential scanning calorimetry (DSC). Circular regions of positive charge were discovered on silicon wafers provided by three different sources. These areas of charge have never been reported in literature, but can easily be detected by placing wafers into solutions containing negatively or positively charged solutions of clay or polymer, respectively. The exact nature of these charged regions is unknown, but it is hypothesized that impurities on silicon wafers create the circular regions of positive charge. ISAM films made of a polyamide salt and a synthetic clay, Laponite RD®, demonstrated significant corrosion resistance on 2024-T3 Al alloys after 168 hours of salt spray testing. The ISAM films offered corrosion protection only if there was a significant layer of underlying surface oxide present, however. It was found that ISAM deposited films of polyarylic acid (PAA) and polyallylamine hydrochloride (PAH) may offer some corrosion resistance on 2024-T3 Al alloys, but these films' corrosion resistance is severely hampered by the presence of Cl- in the PAH solution. Funding from this project was gratefully received from the Materials Science and Engineering Department at Virginia Tech; Luna Innovations Inc; the American Chemical Society / Petroleum Research Fund #34412-G5 and the Environmental Protection Agency Contract #68-D-00-244. Master of Science
- Published
- 2001
22. A Nacreous Self-Assembled Nanolaminate for Corrosion Resistance on 2024-Al Alloy
- Author
-
Gordon, Matthew and Gordon, Matthew
- Abstract
Nanometer thick layers of clay and polymer were formed on mica, silicon, and aluminum 2024-T3 alloy using alternating solutions of positively and negatively charged polymer and clay, respectively. Atomic force microscopy was used to observe the morphology of the composite films on mica and silicon. It was found that solution concentrations of clay above 0.02 weight percent lead to the uncontrolled deposition of clay platelets on the substrate's surface. By using solution concentrations of clay above 0.02 weight percent and ultrasonic agitation together it is possible to deposit a uniform monolayer of clay platelets on a mica substrate in £ 20 seconds. Ultrasonic agitation also produced crude patterns of montmorillonite platelets. Thin films of poly(diallydimethylammonium chloride) (PDDA) were made using concentrations ³ 2 weight percent of PDDA. It was found that the PDDA formed several unusual morphologies. Spherulites of PDDA were observed with AFM and the glass transition temperature of high molecular weight PDDA was measured using differential scanning calorimetry (DSC). Circular regions of positive charge were discovered on silicon wafers provided by three different sources. These areas of charge have never been reported in literature, but can easily be detected by placing wafers into solutions containing negatively or positively charged solutions of clay or polymer, respectively. The exact nature of these charged regions is unknown, but it is hypothesized that impurities on silicon wafers create the circular regions of positive charge. ISAM films made of a polyamide salt and a synthetic clay, Laponite RD®, demonstrated significant corrosion resistance on 2024-T3 Al alloys after 168 hours of salt spray testing. The ISAM films offered corrosion protection only if there was a significant layer of underlying surface oxide present, however. It was found that ISAM deposited films of polyarylic acid (PAA) and polyallylamine hydrochloride (PAH) may offer some corros
- Published
- 2003
23. Physical Properties of Injection Molded Liquid Crystal Polymers and High Temperature Engineering Polymers
- Author
-
MASSACHUSETTS UNIV LOWELL DEPT OF PLASTICS ENGINEERING, Schott, Nick R ., Nunn, Robert E., Rahman, Miftahur, Appaji, Sudesh, MASSACHUSETTS UNIV LOWELL DEPT OF PLASTICS ENGINEERING, Schott, Nick R ., Nunn, Robert E., Rahman, Miftahur, and Appaji, Sudesh
- Abstract
This experimental study investigated the System Molding of Four Liquid Crystal Polymers, Vectra A 950, Vectra B 950, HX 4000, and Xydar SRT 500 and two High Temperature Engineering polymers, Polyetherimide (Ultem) and Polyphenylene Sulfide (Fortron) and evaluation of mechanical properties, tensile, flexural, and compression of molded samples.
- Published
- 1993
24. Advanced Capacitors.
- Author
-
HUGHES AIRCRAFT CO EL SEGUNDO CALIF, Parker,Robert D, Buritz,Robert S, Taylor,A R, Bullwinkel,E P, HUGHES AIRCRAFT CO EL SEGUNDO CALIF, Parker,Robert D, Buritz,Robert S, Taylor,A R, and Bullwinkel,E P
- Abstract
An experimental development program was conducted to develop and test advanced dielectric materials for capacitors for airborne power systems. High rep rate and low rate capacitors for use in pulse-forming networks, high voltage filter capacitors, and high frequency AC capacitors for series resonant inverters were considered. The initial goal was to develop an improved polysulfone film. Initially, low breakdown strength was thought to be related to inclusions of conductive particles. The effect of filtration of the casting solution was investigated. These experiments showed that more filtration was not the entire solution to low breakdown. The film samples were found to contain dissolved ionic impurities that move through the dielectric when voltage is applied and cause enhancement of the electric field. These contaminants enter the film via the resin and solvent, and can be partially removed. However, these treatments did not significantly improve the breakdown characteristics. A new material, Ultem, was proposed for use in high energy density capacitors. This new polyetherimide resin has properties similar to polysulfone and polyimide, with improvement in breakdown characteristics and temperature capability. The technique of casting films on a roughened drum was demonstrated, and found useful in preparing textured films. this is the first step toward a replacement for kraft paper.
- Published
- 1982
25. Space Environmental Effects on Polymeric Materials.
- Author
-
WILLYS MOTORS INC TOLEDO OH, Kiefer, Richard L., Orwoll, Robert A., WILLYS MOTORS INC TOLEDO OH, Kiefer, Richard L., and Orwoll, Robert A.
- Abstract
Polymeric materials that may be exposed on spacecraft to the hostile environment beyond the earth's atmosphere have been subjected to atomic oxygen, electron bombardment, and ultraviolet radiation in terrestrial experiments. Atomic Oxygen: Evidence is presented for the utility of an inexpensive asher for determining the relative susceptibility of organic polymers to atomic oxygen. Kapton, Ultem, P1700 polysulfone, and m-CBB/BIS-A (a specially formulated polymer prepared at NASA-Langley) all eroded at high rates, just as was observed in shuttle experiments. Radiation: Films of Ultem, P1700 polysulfone, and m-CBB/BIS-A were irradiated with 85-keV electrons. The UV/VIS absorbance of Ultem was found to decay with time after irradiation indicating free radical decay. The tensile properties of Ultem began to change only after it had been exposed to 100 Mrads. The effects of dose rate, temperature, and simultaneous vs. sequential electron and UV irradiation were also studied.
- Published
- 1987
26. Proces výroby modelu držáku pomocí aditivní technologie Rapid Prototyping
- Author
-
Sedlák, Josef, Zouhar,, Jan, Ivančic, Marek, Sedlák, Josef, Zouhar,, Jan, and Ivančic, Marek
- Abstract
Bakalářská práce je zaměřena na postup návrhu a výroby modelu GPS držáku s využitím aditivní technologie Rapid Prototyping. Návrh je vytvořen v parametrickém programu Autodesk Inventor a následná výroba je provedena za pomoci výrobního zařízení Fortus 400, které pracuje na principu aditivní metody Fused Deposition Modeling. Součástí práce je rovněž charakteristika a praktická aplikace aditivní technologie Rapid Prototyping včetně nejvyužívanějších metod a materiálů. V závěru práce je provedeno technicko – ekonomické zhodnocení GPS držáku spojené s porovnáním výrobních nákladů vynaložených u jiných organizací., The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
27. Návrh a výroba experimentálního dílu nápravy
- Author
-
Zemčík, Oskar, Slaný, Martin, Volfík, Jiří, Zemčík, Oskar, Slaný, Martin, and Volfík, Jiří
- Abstract
Náplní této diplomová práce je návrh konstrukce a volba vhodného materiálu horního dílu těhlice pro závodní automobil, vyrobeného metodou 3D FDM tisku s eventuální možností nahrazení dílu stávajícího, vyrobeného klasickou formou CNC obrábění. Varianty experimentálního dílu jsou podrobeny analýze MKP, porovnány z hlediska koeficientu bezpečnosti, a je vybrána nejvhodnější konstrukce. Zvolená varianta modelu je v závěru porovnána s již stávajícím dílem, který byl také podroben analýze MKP., The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
28. Návrh a výroba experimentálního dílu nápravy
- Author
-
Zemčík, Oskar, Slaný, Martin, Volfík, Jiří, Zemčík, Oskar, Slaný, Martin, and Volfík, Jiří
- Abstract
Náplní této diplomová práce je návrh konstrukce a volba vhodného materiálu horního dílu těhlice pro závodní automobil, vyrobeného metodou 3D FDM tisku s eventuální možností nahrazení dílu stávajícího, vyrobeného klasickou formou CNC obrábění. Varianty experimentálního dílu jsou podrobeny analýze MKP, porovnány z hlediska koeficientu bezpečnosti, a je vybrána nejvhodnější konstrukce. Zvolená varianta modelu je v závěru porovnána s již stávajícím dílem, který byl také podroben analýze MKP., The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
29. Návrh a výroba experimentálního dílu nápravy
- Author
-
Zemčík, Oskar, Slaný, Martin, Volfík, Jiří, Zemčík, Oskar, Slaný, Martin, and Volfík, Jiří
- Abstract
Náplní této diplomová práce je návrh konstrukce a volba vhodného materiálu horního dílu těhlice pro závodní automobil, vyrobeného metodou 3D FDM tisku s eventuální možností nahrazení dílu stávajícího, vyrobeného klasickou formou CNC obrábění. Varianty experimentálního dílu jsou podrobeny analýze MKP, porovnány z hlediska koeficientu bezpečnosti, a je vybrána nejvhodnější konstrukce. Zvolená varianta modelu je v závěru porovnána s již stávajícím dílem, který byl také podroben analýze MKP., The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
30. Proces výroby modelu držáku pomocí aditivní technologie Rapid Prototyping
- Author
-
Sedlák, Josef, Zouhar,, Jan, Ivančic, Marek, Sedlák, Josef, Zouhar,, Jan, and Ivančic, Marek
- Abstract
Bakalářská práce je zaměřena na postup návrhu a výroby modelu GPS držáku s využitím aditivní technologie Rapid Prototyping. Návrh je vytvořen v parametrickém programu Autodesk Inventor a následná výroba je provedena za pomoci výrobního zařízení Fortus 400, které pracuje na principu aditivní metody Fused Deposition Modeling. Součástí práce je rovněž charakteristika a praktická aplikace aditivní technologie Rapid Prototyping včetně nejvyužívanějších metod a materiálů. V závěru práce je provedeno technicko – ekonomické zhodnocení GPS držáku spojené s porovnáním výrobních nákladů vynaložených u jiných organizací., The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
31. Proces výroby modelu držáku pomocí aditivní technologie Rapid Prototyping
- Author
-
Sedlák, Josef, Zouhar,, Jan, Sedlák, Josef, and Zouhar,, Jan
- Abstract
Bakalářská práce je zaměřena na postup návrhu a výroby modelu GPS držáku s využitím aditivní technologie Rapid Prototyping. Návrh je vytvořen v parametrickém programu Autodesk Inventor a následná výroba je provedena za pomoci výrobního zařízení Fortus 400, které pracuje na principu aditivní metody Fused Deposition Modeling. Součástí práce je rovněž charakteristika a praktická aplikace aditivní technologie Rapid Prototyping včetně nejvyužívanějších metod a materiálů. V závěru práce je provedeno technicko – ekonomické zhodnocení GPS držáku spojené s porovnáním výrobních nákladů vynaložených u jiných organizací., The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
32. Proces výroby modelu držáku pomocí aditivní technologie Rapid Prototyping
- Author
-
Sedlák, Josef, Zouhar,, Jan, Sedlák, Josef, and Zouhar,, Jan
- Abstract
Bakalářská práce je zaměřena na postup návrhu a výroby modelu GPS držáku s využitím aditivní technologie Rapid Prototyping. Návrh je vytvořen v parametrickém programu Autodesk Inventor a následná výroba je provedena za pomoci výrobního zařízení Fortus 400, které pracuje na principu aditivní metody Fused Deposition Modeling. Součástí práce je rovněž charakteristika a praktická aplikace aditivní technologie Rapid Prototyping včetně nejvyužívanějších metod a materiálů. V závěru práce je provedeno technicko – ekonomické zhodnocení GPS držáku spojené s porovnáním výrobních nákladů vynaložených u jiných organizací., The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
33. Návrh a výroba experimentálního dílu nápravy
- Author
-
Zemčík, Oskar, Slaný, Martin, Zemčík, Oskar, and Slaný, Martin
- Abstract
Náplní této diplomová práce je návrh konstrukce a volba vhodného materiálu horního dílu těhlice pro závodní automobil, vyrobeného metodou 3D FDM tisku s eventuální možností nahrazení dílu stávajícího, vyrobeného klasickou formou CNC obrábění. Varianty experimentálního dílu jsou podrobeny analýze MKP, porovnány z hlediska koeficientu bezpečnosti, a je vybrána nejvhodnější konstrukce. Zvolená varianta modelu je v závěru porovnána s již stávajícím dílem, který byl také podroben analýze MKP., The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
34. Návrh a výroba experimentálního dílu nápravy
- Author
-
Zemčík, Oskar, Slaný, Martin, Zemčík, Oskar, and Slaný, Martin
- Abstract
Náplní této diplomová práce je návrh konstrukce a volba vhodného materiálu horního dílu těhlice pro závodní automobil, vyrobeného metodou 3D FDM tisku s eventuální možností nahrazení dílu stávajícího, vyrobeného klasickou formou CNC obrábění. Varianty experimentálního dílu jsou podrobeny analýze MKP, porovnány z hlediska koeficientu bezpečnosti, a je vybrána nejvhodnější konstrukce. Zvolená varianta modelu je v závěru porovnána s již stávajícím dílem, který byl také podroben analýze MKP., The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
35. Návrh a výroba experimentálního dílu nápravy
- Author
-
Zemčík, Oskar, Slaný, Martin, Zemčík, Oskar, and Slaný, Martin
- Abstract
Náplní této diplomová práce je návrh konstrukce a volba vhodného materiálu horního dílu těhlice pro závodní automobil, vyrobeného metodou 3D FDM tisku s eventuální možností nahrazení dílu stávajícího, vyrobeného klasickou formou CNC obrábění. Varianty experimentálního dílu jsou podrobeny analýze MKP, porovnány z hlediska koeficientu bezpečnosti, a je vybrána nejvhodnější konstrukce. Zvolená varianta modelu je v závěru porovnána s již stávajícím dílem, který byl také podroben analýze MKP., The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
36. Návrh a výroba experimentálního dílu nápravy
- Author
-
Zemčík, Oskar, Slaný, Martin, Zemčík, Oskar, and Slaný, Martin
- Abstract
Náplní této diplomová práce je návrh konstrukce a volba vhodného materiálu horního dílu těhlice pro závodní automobil, vyrobeného metodou 3D FDM tisku s eventuální možností nahrazení dílu stávajícího, vyrobeného klasickou formou CNC obrábění. Varianty experimentálního dílu jsou podrobeny analýze MKP, porovnány z hlediska koeficientu bezpečnosti, a je vybrána nejvhodnější konstrukce. Zvolená varianta modelu je v závěru porovnána s již stávajícím dílem, který byl také podroben analýze MKP., The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
37. Proces výroby modelu držáku pomocí aditivní technologie Rapid Prototyping
- Author
-
Sedlák, Josef, Zouhar,, Jan, Sedlák, Josef, and Zouhar,, Jan
- Abstract
Bakalářská práce je zaměřena na postup návrhu a výroby modelu GPS držáku s využitím aditivní technologie Rapid Prototyping. Návrh je vytvořen v parametrickém programu Autodesk Inventor a následná výroba je provedena za pomoci výrobního zařízení Fortus 400, které pracuje na principu aditivní metody Fused Deposition Modeling. Součástí práce je rovněž charakteristika a praktická aplikace aditivní technologie Rapid Prototyping včetně nejvyužívanějších metod a materiálů. V závěru práce je provedeno technicko – ekonomické zhodnocení GPS držáku spojené s porovnáním výrobních nákladů vynaložených u jiných organizací., The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
38. Proces výroby modelu držáku pomocí aditivní technologie Rapid Prototyping
- Author
-
Sedlák, Josef, Zouhar,, Jan, Ivančic, Marek, Sedlák, Josef, Zouhar,, Jan, and Ivančic, Marek
- Abstract
Bakalářská práce je zaměřena na postup návrhu a výroby modelu GPS držáku s využitím aditivní technologie Rapid Prototyping. Návrh je vytvořen v parametrickém programu Autodesk Inventor a následná výroba je provedena za pomoci výrobního zařízení Fortus 400, které pracuje na principu aditivní metody Fused Deposition Modeling. Součástí práce je rovněž charakteristika a praktická aplikace aditivní technologie Rapid Prototyping včetně nejvyužívanějších metod a materiálů. V závěru práce je provedeno technicko – ekonomické zhodnocení GPS držáku spojené s porovnáním výrobních nákladů vynaložených u jiných organizací., The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
39. Proces výroby modelu držáku pomocí aditivní technologie Rapid Prototyping
- Author
-
Sedlák, Josef, Zouhar,, Jan, Ivančic, Marek, Sedlák, Josef, Zouhar,, Jan, and Ivančic, Marek
- Abstract
Bakalářská práce je zaměřena na postup návrhu a výroby modelu GPS držáku s využitím aditivní technologie Rapid Prototyping. Návrh je vytvořen v parametrickém programu Autodesk Inventor a následná výroba je provedena za pomoci výrobního zařízení Fortus 400, které pracuje na principu aditivní metody Fused Deposition Modeling. Součástí práce je rovněž charakteristika a praktická aplikace aditivní technologie Rapid Prototyping včetně nejvyužívanějších metod a materiálů. V závěru práce je provedeno technicko – ekonomické zhodnocení GPS držáku spojené s porovnáním výrobních nákladů vynaložených u jiných organizací., The bacherol thesis is focused on approach of design and production of the model GPS holder with using additive technology Rapid Prototyping. The design is created in parametric Autodesk Inventor programme and next production is realized with utilizing manufacturing machine Fortus 400, which generates products on the principle of additive method of Fused Deposition Modeling. The thesis also consists of characterize and practical applications of additive technology Rapid Prototyping inclusive of the most used methods and materials of the technology. In the end of the thesis it´s accomplished technical – economic valorization of the GPS holder and comparing the production costs, which would have spent at other organizations.
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