Temat: prototyping - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Preliminary research of prototypes helical gears for power transmission systems
Autorzy:: Sobolak, M.
Jagielowicz, P. E.
Powiązania:: https://bibliotekanauki.pl/articles/245597.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: rapid prototyping
bevel gears
Opis:: The toothed gears are used in the power transmission systems. It is result from advantages of them (e.g. efficiency, reliability, fatigue life, high-load transmission). In the power transmission systems for trucks, and for cars with back drive, gear pairs are used. In that case it is possible to transfer turning moment under right angle. The most common in use in so-called main axle are bevel or hypoid gear pairs. Differential gears are mainly built basis of straight bevel gears. The paper presents method of preliminary determination of usability bevel gears for transfer turning moment. The method uses gears' models which are made with Rapid Prototyping techniques. The gears are placed in the testbed, which enables to steady load of gear pair. The observation of tooth contact makes possible to preliminary evaluate of correctness of gear pair's working. The tooth contact's changes are observed during gear rotation. The direct observation of tooth gears can be done using transparent material for gears. Besides, it is possible to determine temporary tooth contact and its changes in function of gears' rotation for existing metal gear pairs. In order to analyse, it is necessary to make copy of existing gears vacuum cleaning method. It uses the silicone forms as a template to make copies. It should be use transparent material. The method enables to analyse tooth contact in gear pairs after lifetime, thereby evaluating impact of working on correctness of gear pairs' working.
Źródło:: Journal of KONES; 2009, 16, 3; 375-380
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Visualization of internal stress pattern in gears in power transmission systems using rapid prototyping (RP)
Wizualizacja naprężeń w kołach zębatych układów napędowych z wykorzystaniem metod RP
Autorzy:: Sobolak, M.
Budzik, G.
Powiązania:: https://bibliotekanauki.pl/articles/243874.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: rapid prototyping
gears
photoelasticity
Opis:: The paper contains description of an experimental method of stress pattern visualization. Mainly analytical methods and a Finite Element Method are used to determine internal stress pattern. Sometimes photo-elasticity is used. Model is made by copying real objects by casting from special optical-active resins. There is possible to put into use Rapid Prototyping methods. Some materials used in RP processes are optically active. In proposed solution of stress pattern visualization special models of gears are used. Models are made directly from optically active resin by Rapid Prototyping method - stereolitography. A transparent fotohardening optically active resin Sl5170 has been used to observe stress pattern in polarized light. Prototypes of gear are assembled in a special device and loaded by torque. The principle of a mechanical similarity was applied. In relation to the classic photo-elasticity method novelty is the use of the LCD monitor as a source of light and a camera with polarisation filter for observation and recording the distribution of internal stress pattern. The use of simulation of gear generating in CAD system and stereolitography method to produce a prototype allows you to eliminate the classic machining of gear at lower cost.
W artykule przedstawiono eksperymentalną metodę wyznaczania rozkładu naprężeń. W celu określenia rozkładu naprężeń używane są metody analityczne i komputerowe wykorzystujące metodę elementów skończonych. W niektórych przypadkach użycie znajduje elestooptyka. Modele do elastooptyki są kopiami rzeczywistych obiektów, wykonanymi z materiału czynnego optycznie. Możliwe jest zastosowanie techniki szybkiego prototypowania w celu wykonania takiego modeluo. Niektóre z materiałów używanych w szybkim prototypowaniu są czynne optycznie. W proponowanym rozwiązaniu w wizualizacji naprężeń w kołach zębatych układów napędowych używane są specjalne modele kół. Modele są wykonane bezpośrednio z żywicy czynnej optycznie metodą stereolitografii. Użyto przezroczystej, fotoutwardzalnej żywicy Sl5170 w celu wyznaczenia rozkładu naprężeń. Modele kół obserwowano w świetle spolaryzowanym. Koła zestawiono w specjalnym przyrządzie i obciążono momentem skręcającym. Zastosowano zasadę podobieństwa modelowego. W stosunku do klasycznej metody elastooptyki nowością jest zastosowanie monitora LCD jako źródła światła oraz aparatu fotograficznego z filtrem polaryzacyjnym do obserwacji i rejestracji rozkładu naprężeń. Zastosowanie symulacji obróbki obwiedniowej w systemie CAD oraz wytworzenie kół za pomocą stereolitografii elimnuje klasyczną obróbkę skrawaniem i przyczynia się do obniżenia kosztów badań.
Źródło:: Journal of KONES; 2008, 15, 2; 457-461
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Modelling and prototyping of aeronautical planetary gear demonstrator
Autorzy:: Budzik, G.
Kozik, B.
Pacana, J.
Żmuda, B.
Powiązania:: https://bibliotekanauki.pl/articles/243935.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: rapid prototyping
gear
CAD
FDM
Opis:: The article presents methodology of modelling and prototyping process for the demonstrator of aeronautical planetary gear. Contemporary methods of designing gear make use of computer aided designing systems (CAD), computer aided engineering (CAE) and computer aided manufacturing (CAM) including also rapid prototyping (RP). First stage of designing gear is always defining basic parameters of the gear work (among others: transmission ratio, rotational speed, power) determined by the gear destination. After carrying out the gear calculations it is possible to create 3D-CAD models ofwheels and other elements of the gear. 3D-CAD systems are often equipped with a module for analysing geometrical parameters and cooperation of its individual elements e.g. the track of cooperation. A detailed analysis of cooperation of gear wheels' elements allows for early detection of construction mistakes of models and for deleting the mistakes. If 3D-CAD models are made correctly, it is possible to record the geometrical data in an appropriate format of numerical data. The following stage of making the prototype of the gear is preparing numerical data necessary for making the demonstrator by means of rapid prototyping method. The accuracy of making physical prototype depends a lot on the accuracy of 3D-CAD/3D-RP model made by means of processing the numerical data. The demonstrator allows for analysis of constructional solutions of the gear based on physical model and for doing introductory stand tests. The paper presents the process of making the demonstrator of planetary gear applying 3D-CAD modelling and Rapid Prototyping. For making the physical prototype a Fused Deposition Modelling (FDM) method of Rapid Prototyping was applied.
Źródło:: Journal of KONES; 2010, 17, 3; 49-54
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Rapid prototyping process of monocrystal aircraft engine blades
Autorzy:: Budzik, G.
Matysiak, H.
Cygan, R.
Bąk, S.
Cygnar, M.
Powiązania:: https://bibliotekanauki.pl/articles/245805.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: rapid prototyping
monocrystal
aircraft engine
blades
Opis:: The article presents process application of the rapid prototyping (RP) for manufacturing of blades of aircraft turbine in mono- crystallization and also directional crystallization of casting process. It is describing the method of modeling of the chosen elements of casting model kit with the usage of RP and RT systems. The article presents the analysis of a additive rapid prototyping methods (stereolithography) in an aspect of manufacturing of casting models. The possibilities of RP system usage to the ceramic form were the main criteria of the analysis. The ceramic form is a one of the parts of process casting of monocrystal blade of aircraft engine. In the article the possibilities making of models by means of rapid tooling system based on the Vacuum Casting (VC) technology were also analysed. The Vacuum Casting technology allows producing the silicone mould under decreasing pressure. Silicone tools allow creating wax casting models as a vacuum casting process, casting process and low pressure of injection. Rapid prototyping and rapid tooling technologies allow creating casting wax models of a blade and other parts of casting models. RP and RT methods allow creating connectors of the parts. These connectors allow connecting the parts of model kit in a fast and simple method. The stereolithography and Vacuum Casting allow accelerating process of manufacturing of monocrystal blades of aircraft engines.
Źródło:: Journal of KONES; 2009, 16, 4; 23-28
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Rapid prototyping process of monocrystal aircraft engine blades
Autorzy:: Budzik, G.
Matysiak, H.
Cygan, R.
Bąk, S.
Cygnar, M.
Powiązania:: https://bibliotekanauki.pl/articles/246158.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: rapid prototyping
monocrystal
aircraft engine
blades
Opis:: The article presents process application of the rapid prototyping (RP) for manufacturing of blades of aircraft turbine in mono- crystallization and also directional crystallization of casting process. It is describing the method of modelling of the chosen elements of casting model kit with the usage of RP and RT systems. The article presents the analysis of additive rapid prototyping methods (stereolithography) in an aspect of manufacturing of casting models. The possibilities of RP system usage to the ceramic form were the main criteria of the analysis. The ceramic form is a one of the parts of process casting of monocrystal blade of aircraft engine. In the article the possibilities making of models by means of rapid tooling system based on the Vacuum Casting (VC) technology were also analysed. The Vacuum Casting technology allows producing the silicone mold under decreasing pressure. Silicone tools allow creating wax casting models as a vacuum casting process, casting process and Iow pressure of injection. Rapid prototyping and rapid tooling technologies allow creating casting wax models of a blade and other parts of casting models. RP and RT methods allow creating connectors of the parts. These connectors allow connecting the parts of model kit in a fast and simple method. The stereolithography and Vacuum Casting allow accelerating process of manufacturing of monocrystal blades of aircraft engines.
Źródło:: Journal of KONES; 2010, 17, 1; 81-86
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Analysis of surface roughness of transmission gear teeth made by different rapid prototyping methods
Autorzy:: Budzik, G.
Markowski, T.
Sobola, M.
Powiązania:: https://bibliotekanauki.pl/articles/244106.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: surface roughness
rapid prototyping
bevel gears
Opis:: Article presents analysis of surface roughness of aircraft and vehicle power transmission system gear teeth made by different Rapid Prototyping methods. Gear box models have been made by two rapid prototyping methods: stereolithography (SLA), three dimensional printing (3DP) and two rapid tooling methods: Vacuum Casting (VC), Low Pressure Injection (LPI). Surface roughness for rapid prototyping methods is determined mostly by layered system of building model. It depends on process parameters: layer thickness and model position in working space of RP machine. Vacuum Casting and Low Pressure Injection are Rapid Tooling technologies. For this technology final surface roughness is a reflection of surface parameters of tools (silicon mould, silicon matrix). The paper presents results of surface roughness measurements of gear made by few RP and RT methods. The most important thing was an analysis of surface roughness made by Rapid Tooling methods. In these methods surface roughness depends on surface parameters of basis RP model. For basis RP models finishing processing was applied. This process improves parameters of the surface. This research process allowed to define the influence of chosen RP and RT method and its parameters on surface roughness of gear tooth. It permitted to order rapid prototyping methods for application of power transmission prototype making process.
Źródło:: Journal of KONES; 2008, 15, 2; 29-34
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Possibilities of using vacuum casting process for manufacturing cast models of turbocharger impellers
Autorzy:: Budzik, G.
Powiązania:: https://bibliotekanauki.pl/articles/243370.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turbocharger impeller
rapid prototyping systems
vacuum casting
Opis:: Possibilities of producing cast models of turbocompressor impellers in silicon matrices by vacuum casting process are presented. Vacuum casting process enables producing cast models of impellers for precision casting. A standard model for silicon matrix making is a prototype produced with stereo lithography technique. The advantage of stereo lithographic model is its easy machinability that enables higher quality of impeller model surface. Silicon matrices enable casting of prototype models from foundry plastics, such as: casting wax, polyurethanes, polyester and epoxy resins. Properties of the plastic material used determine the shape of die parting. Because of its low strength, casting wax enforces die parting into a larger number of elements, thus enabling to pull it out without damage. The prototypes made from casting resins require considerably fewer parting surfaces. Silicon matrices enable to manufacture from several to several dozen cast patterns of prototype turbocharger impellers. The basic advantage of vacuum casting process is the shortening of prototype making time and cost, compared to traditional methods. The silicon matrixes permit casting and low-pressure injections of plastics. Some plastics may be used for producing foundry patterns for various metal alloy casting processes.
Źródło:: Journal of KONES; 2007, 14, 3; 125-130
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The influence of contour number on load carrying capacity of gears in aircraft gearbox demonstrator made by MEM
Autorzy:: Budzik, G.
Kozik, B
Łączek, A.
Cieplak, M
Powiązania:: https://bibliotekanauki.pl/articles/950153.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: test stand
Rapid Prototyping (RP)
aircraft gearbox
gears
Opis:: The paper presents an outcome of load carrying tests of gears in an aircraft gearbox demonstrator made of ABS B601polymer by means of INSPIRE D290 device. These tests checked an influence of an additional number of contours in gear models on durability of cooperating wheel pair during stand tests. The CAD models of the gears for stand tests were made in Autodesk Inventor program and were used as a base for making physical models. Therefore, Inventor files were exported to STL format. The following stage of data preparation was made in Model Wizard. The gears for stand tests were made by means of MEM method on INSPIRE D290 printer. Unlike most devices, this printer makes it possible to control not only the density of the filling in a model, but also to increase the number of contours. ABS polymer was chosen to make the gears. The choice was due to its good properties and because it is commonly used and also because it was possible to make the parts of the gearing at the Rzeszow University of Technology. Subsequently the gear pair was fixed on a test stand. The stand was designed in an open system. It was powered by a three-phase 0.75 kW electric motor. The control was provided by a single-phase inverter. Load on the stand was provided by an electromagnetic powder brake. This paper is a part of implementation of the research task number 4 „Development of a new, simpler and cheaper toothed gear in place of complicated and expensive planetary gears” of the project „Modern material technologies in aerospace industry."
Źródło:: Journal of KONES; 2014, 21, 3; 29-34
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Hybrid method for rapid prototyping of core models of aircraft engine blades
Autorzy:: Budzik, G.
Kubiak, K.
Matysiak, H.
Cygan, R.
Tutak, M.
Powiązania:: https://bibliotekanauki.pl/articles/247306.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: engine blades
precise casting
rapid prototyping
directional crystallization
Opis:: The paper presents the possibility of using CAD/RP for the design and manufacture of the core models used for precise casting of core aircraft engine turbine blades, with directional crystallization process and single crystallization. The process of modelling 3D CAD geometry of research blade in relation to the model of the core was presented. The sample design, blade base model, was made by one of the incremental method of rapid prototyping - Jetting System. The geometry of the blade model has been designed in a way, which allows making a silicon form on the basis of a base prototype in the process of rapid prototyping tools (Rapid Tooling). The form allows the attachment of the blade core in a place designed specifically for this purpose. The silicon form has enabled the production of wax models with the inner core. This task was achieved by proper shaping of forms with the plane of its division. The resulting models were used to make ceramic moulds and carry further work on the development of casting technology in the process of directional crystallization and single crystallization of core blades of aircraft engines.
Źródło:: Journal of KONES; 2012, 19, 2; 77-82
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Surface roughness of aircraft engine blade models produced with various methods of rapid prototyping
Autorzy:: Budzik, G.
Powiązania:: https://bibliotekanauki.pl/articles/243159.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
rapid prototyping systems
surface roughness
impeller blade
Opis:: Results of the study of surface roughness of the aircraft engine blade model, produced with various methods of rapid prototyping are presented. Blade models were made with two incremental methods of rapid prototyping: stereo lithography (SLA-250 device) and three-dimensional printing (Z510 Spectrum printer). In incremental methods of rapid prototyping a model is formed by hardening of consecutive layers of the base material. Model position in the equipment work area has a significant influence on surfaces quality of a prototype, especially in stereo lithography method. It is essential in case of elements with curvilinear surfaces like aircraft engine blades. A CAD blade has been exported to the STL format within surface precision of 0,001 mm. Afterwards, it was duplicated and set up in various positions of the virtual work area of the 3D Light year programme dedicated to the SLA-250 device. Data prepared in this way have been used for producing physical models. Roughness surveys were carried out with the Talyscan150 device, manufactured by Taylor Hobson Precision. The measurements permitted making three-dimensional maps of surfaces of blade prototypes. Thanks to that, it was possible to determine optimum position of blade in the work area of RP devices in respect to prototype surface quality.
Źródło:: Journal of KONES; 2007, 14, 2; 55-60
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The rapid prototyping of aircraft wheel hub model with the use of techniques JS, SLA, FDM
Autorzy:: Śliwa, R. E.
Budzik, G.
Bernaczek, J.
Dziubek, T.
Powiązania:: https://bibliotekanauki.pl/articles/245987.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: prototype
aircraft wheel hub
rapid prototyping
techniques JS
SLA
FDM
Opis:: Design work related to the implementation of new aerospace elements requires the use of 3D-CAD modelling techniques and rapid prototyping, which makes it possible to significantly accelerate the deployment of new solutions. The article presents the possibility of using some methods of rapid prototyping to produce the research model of a wheel hub forming part of the landing gear. Incremental rapid prototyping methods - JS (Jetting System), SLA (Stereolithography), FDM (Fused Depositing Modelling) - have been characterized with regard to the technology of executing a hub model, the parameters of the manufacturing apparatus, and comparing basic technical data of materials used in the analyzed processes. One of the elements of the process of prototyping was to process data in other equipment for rapid prototyping. This process consisted of the following steps: defining the parameters of model building, determining the appropriate model settings in the workspace of manufacturing equipment, editing the supporting structure, verifying the subsequent layers through the simulation of model building process, generating output numerical procedures for manufacturing equipment. Manufactured prototypes have been evaluated of dimensional accuracy with the use coordinate measuring machine. Also measured the surface roughness. Conducted studies were the basis to determine the applicability of various methods of rapid prototyping in the process of research and manufacturing aircraft wheel hub.
Źródło:: Journal of KONES; 2011, 18, 3; 439-443
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Numerical analysis of impact load of arch yielding support
Autorzy:: Tokarczyk, J.
Turewicz, K.
Smolnik, G.
Rotkegel, M.
Powiązania:: https://bibliotekanauki.pl/articles/243887.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: virtual prototyping
finite elements method
mining
impact analysis
experimental test
Opis:: Bumping is one of the natural hazards that occur in Polish collieries. It is a common phenomenon but difficult to predict and very often it causes huge losses in mining equipment and roadway structure. Death of miners working underground is most severe result of bumping. To reduce or even to eliminate results of bumping, especially fatal cases, many safety measures have been used. Frame of arch support is one of the measures applied to reduce dangerous results of bumping. Simulation test ofimpact load of arch yielding support was presented in the paper. The simulation of support load was realized in two stages. Static load of frame of yielding arch support was simulated at the first stage. Among others simulation of assembly of arch support components was carried out. Non-linear simulation, including contact phenomena, was conducted for that purpose. First stage of the task was realized in MSC.Marc/Mentat software Structure of yielding arch support was dynamically loaded at the second stage. The forcing corresponded to real dynamic loads that werefound in mine workings. Second stage of the task was realized in MSC.Dytran software The results of simulations carried out at the KOMAG Institute of Mining Technology were compared with the results of tests of arch supports, which were realized at the Central Mining Institute.
Źródło:: Journal of KONES; 2010, 17, 1; 455-464
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: The determination of accuracy of the demonstrator of aeronautic bevel gearbox, accomplished by selected rapid prototyping techniques using an optical scanner Atos II Triple Scan
Autorzy:: Marciniec, A.
Budzik, G.
Dziubek, T.
Sobolewski, B.
Zaborniak, M.
Powiązania:: https://bibliotekanauki.pl/articles/247540.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: bevel gear
aircraft gearbox
optical scanner
coordinate measuring technique
rapid prototyping
gear modelling
Opis:: Designing and manufacturing of aeronautic bevel gearboxes is a complicated and time-consuming process because of complex kinematics of the machining process as well as numbers of manufacturing methods. Machine manufacturers usually provide algorithms used in manufacture process. This requires substantial financial resources and, in consequence, it increases the costs of production. Using other commonly available calculation algorithm requires a lot of studies to verify whether the proposed gearbox works correctly. In order to reduce the manufacturing costs of prototypes, it is possible to use Rapid Prototyping methods. Using both Rapid Prototyping techniques and coordinate optical measurements enables to verify the correctness of assumptions made in the initial stage of product designing. This approach reduces significantly both prototyping time and manufacturing costs. In order to ensure the effectiveness of prototyping process, it is essential to provide the accuracy of manufactured prototypes. That is the reason why it is necessary to determine manufacturing methods that will ensure the highest geometric accuracy. The study presents the modelling and manufacturing process of aeronautic bevel gear of demonstrator taking into consideration the accuracy of selected Rapid Prototyping methods. The gear modelling is based on machining simulation method conducted in Autodesk Inventor. The measurement results are shown in displacement maps obtained with an optical scanner Atos II Triple Scan and universal GOM Inspect Professional software, which determines the prototype accuracy in relation to 3D-CAD models.
Źródło:: Journal of KONES; 2014, 21, 3; 205-209
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Prototyping of bevel gears of aircraft power transmission
Prototypowanie stożkowej przekładni napędu lotniczego
Autorzy:: Budzik, G.
Markowski, T.
Sobolak, M.
Powiązania:: https://bibliotekanauki.pl/articles/243161.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: silnik spalinowy
systemy szybkiego prototypowania
stereolitografia
przekładnia stożkowa
combustion engine
rapid prototyping systems
stereolithography
bevel gears
Opis:: Artykuł przedstawia proces wykonania prototypu stożkowej przekładni napędu lotniczego. Szybkie wykonywanie prototypów przekładni o nietypowych zarysach zębów jest możliwe metodami "Rapid Prototyping". Jedną z najdokładniejszych metod szybkiego prototypowania jest stereolitografia, która polega na warstwowym utwardzaniu promieniem lasera fotopolimeru. Metoda ta pozwala zbudowanie modeli kół zębatych o dowolnych kształtach. Za pomocą urządzenia stereolitograficznego SLA-250 wykonane zostały modele kół zębatych przekładni stożkowej. Modele stereolitograficzne mogą służyć do wykonania odlewów. Istotną zaletą prototypów kół zębatych wykonanych z fotoutwardzalnej żywicy jest ich przezroczystość. Zaleta ta pozwala na obserwację chwilowego śladu styku kół zębatych przekładni. Chwilowy ślad styku jest jednym z podstawowych parametrów opisujących prawidłową pracę przekładni. W tym celu przygotowane zostały specjalne modele kół zębatych o zmniejszonej grubości ścianki. Taka budowa pozwoliła na bardziej precyzyjną obserwację śladu styku oraz na zmniejszenia kosztów wykonania modeli. Śledzenie dynamiczne chwilowego śladu styku jest niemożliwe do wykonania tradycyjnymi metodami badawczymi. Zastosowanie metod szybkiego prototypowania daje dobre rezultaty w procesie badań nowych prototypowych przekładni zębatych napędów lotniczych.
The article presents manufacturing process of bevel gears of aircraft power transmission. Rapid prototyping of gears with complex tooth forms is possible with the use of modern methods. One of such methods is the stereo-lithography, where a model is obtained as a result of resin curing with laser beam. This method allows creating gear model with arbitrary tooth form. Bevel gears was carried out by method of stereolitography on SLA 250 apparatus. Gear wheel prototypes were predestined for casting by method losing patterns. One of the best advantages of stereolitography model is its transparency. This advantage allow to observation instantaneous contact ellipses of gear. Instantaneous contact ellipses of gear is one of the most important parameters describe correctly work of gear. Research of instantaneous contact ellipses of gear requires special construction of model gear with thin wall. This construction allows costing reduction of prototype. Observation of instantaneous contact ellipses of gear is not possible by traditional research method. Rapid Prototyping method give good results in research process of new prototype of aircraft transmission gear.
Źródło:: Journal of KONES; 2007, 14, 2; 61-66
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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