Wyniki wyszukiwania - Biblioteka Nauki

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Application of rapid prototyping - SLA, FDM - to manufacture model of aircraft wheel hub

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Śliwa R. E. , Budzik G. , Bernaczek J.

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tom Vol. 17, No. 3

423-429

EN

Implementation of prototypes of the aircraft is a complex process - which requires a series of operations on data preparation, maintenance and inspection of the measuring apparatus. The development overlooks the stage of design and CAD modelling which is the subject of separate publications, and presents only issues related to the RP process - the SLA and FDM. Special attention was paid to the need to properly export to CAD models as STL and subseąuent analysis of the surface after tessellation (preview generated triangle mesh describing the model). The process of preparing data in dedicated utility software is a key step for the correct implementation of the prototype aircraft wheel hub. The correct position of the working models on the platform, generated automatically supports editing and verification output files (simulation analysis of overlapping layers) minimizes the risk of damage during the prototyping process itself as well as the subsequent finishing. The final chapter presents the coordinate measuring of made prototypes that will help identify areas of application methods of RP in the aerospace industry. Prototype SLA is marred by a higher error than the FDM model but allows for effective finishing operations, which eliminates the geometric errors and significantly improves the quality of the surface.

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Obróbka numeryczna danych CAD/RP w procesie SLS EOS z zastosowaniem proszku ze stopu Ti6Al4V

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Śliwa R. , Budzik G. , Bernaczek J.

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2012

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tom Vol. 79, nr 1

62--66

PL

Prototypowanie części maszyn ze stopu Ti6Al4V może być realizowane z wykorzystaniem selektywnego warstwowego spajania proszków metali – SLS. Artykuł przedstawia proces obróbki numerycznej danych na drodze od modelu 3D-CAD do przygotowania modelu 3D-RP. Prace przeprowadzono na przykładzie technologii szybkiego prototypowania SLS z wykorzystaniem aparatury EOS Eosint M270 dla proszku tytanowego EOS Titanium Ti64.

EN

Prototyping the machine parts of Ti6Al4V alloy can be realized with the use of selective bonding layer of metal powders (called Selective Laser Sintering − SLS). The article presents the process of numerical data processing, from 3D-CAD model to the preparation of the 3D-RP model. The works were conducted on the example of SLS rapid prototyping technology with the use of the apparatus Eosint EOS M270 for titanium powder EOS Titanium Ti64.

3

Badania modelowe dźwigni układu sterowania śmigłowca

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Bernaczek J. , Budzik G. , Kudasik T. , Śliwa R.

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2015

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tom R. 88, nr 12CD2

9--12

PL

Artykuł prezentuje badania dźwigni układu sterowania śmigłowca. Dokonano doboru techniki szybkiego prototypowania. Przygotowano dane dla procesu RP i wytworzono prototyp dźwigni. Prototyp JS wykorzystano do wykonania modelu do analizy rozkładu naprężeń. Opracowano technologię elastooptycznej analizy w oparciu o światło odbite. Przeprowadzone badania modelowe potwierdziły właściwą konstrukcję dźwigni.

EN

This article presents research of the helicopter control system lever. Selection of the rapid prototyping technique was performed. Data for the process of RP had to be prepared and a prototype was manufactured. The JS prototype was then used to prepare the model for stress distribution analysis. Additionally, a technology for photoelastic analysis based on reflected light was developed. The study confirmed the correct lever construction.

4

Determination of Stress Values Based on Calculation of Photoelastic Constants on the Example of the Sub-Frame Connection with the Hull in a Small Training Aircraft

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Czaja J. , Śliwa R. , Bernaczek J.

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5

The analysis of the wax foundry models fabrication process for the CPX3000 device

88%

Budzik G. , Kozik B. , Bernaczek J. , Wieczorowski M. , Tutak M.

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2011

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tom Vol. 11, iss. 2

5-8

EN

The paper presents possibilities of creating wax founding models by means of CPX3000 device. The device is used for Rapid Prototyping of models made of foundry wax in an incremental process. The paper also presents problems connected with choosing technological parameters for incremental shaping which influence the accuracy of created models. Issues connected with post-processing are also described. This process is of great importance for obtaining geometrically correct models. The analysis of parameters of cleaning models from supporting material is also presented. At present CPX3000 printer is the first used in Poland device by 3D Systems firm for creating wax models. The printer is at The Faculty of Mechanical Engineering at Rzeszów University of Technology.

PL

Artykuł przedstawia możliwości wytwarzania woskowych modeli odlewniczych z zastosowaniem maszyny CPX3000. Urządzenie CPX3000 służy do szybkiego prototypowania modeli z wosku odlewniczego wytwarzanych w procesie przyrostowym. W artykule przedstawione są problemy związane z doborem parametrów technologicznych procesu kształtowania przyrostowego mające wpływ na dokładność wykonywanych modeli. Opisane są również zagadnienia związane z postprocessingiem. Proces ten ma zasadnicze znaczenie dla uzyskania modeli poprawnych geometrycznie. Przedstawiono analizę parametrów oczyszczania modeli z materiału podporowego w aspekcie teoretycznym i praktycznym.

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The Application of VoxelJet Technology to the Rapid Prototyping Gear Cast

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Budzik G. , Markowski T. , Kozik B. , Przeszłowski Ł. , Rzucidło A. , Markowska O. , Zaborniak M. , Dziubek T. , Bernaczek J. , Turek P. , Traciak J. , Cader M. , Tutak M.

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2014

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tom Vol. 14, iss. 1 spec.

87--90

EN

The article presents the scope of application of incremental Rapid Prototyping/Rapid Tooling (RP/RT) – VoxelJet methods to the process of manufacturing casting moulds and casts of gear. The additive Rapid Prototyping methods (SL, FDM, 3DP, JS) are predominantly used for the production of models and model sets for casting moulds. The Rapid Tooling methods, such as: VoxelJet, ZCast-3DP and ProMetalRCT, enable the fabrication of casting moulds in the incremental process. The application of the RP/RT methods in cast production makes it possible to speed up the prototype preparation process. This is particularly vital with elements of complex shapes. The time required for the manufacture of the model, the mould and the cast proper may vary from a few to several dozen hours.