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    Wyświetlanie 1-6 z 6
    Tytuł:
    Integration of Virtual Engineering and Additive Manufacturing for Rapid Prototyping of Precision Castings
    Autorzy:
    Krutiš, V.
    Šprta, P.
    Kaňa, V.
    Zadera, A.
    Cileček, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1837847.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    product development
    innovative foundry technologies
    virtual engineering
    rapid prototyping
    rozwój produktu
    innowacyjne technologie odlewnicze
    inżynieria wirtualna
    prototyp
    Opis:
    The present paper is concerned with the practical interconnection between virtual engineering tools and additive model manufacturing technologies and the subsequent production of a ceramic shell by rapid prototyping with the use of Cyclone technology to produce the aluminium casting prototype. Prototypes were developed as part of the student formula project, where several parts originally produced by machining were replaced by castings. The techniques of topological optimization and the combination with the tools of the numerical simulation were used to optimise the virtual prototype before a real production of the first prototype. 3D printing of wax pattern ensured direct and fast assembly of the cluster without any additional operations and troubles during dewaxing. The shell was manufactured in 6 hours thanks to a system of quick-drying of individual layers of ceramic shell. It has been verified that the right combination of individual virtual tools with the rapid prototyping can shorten the development time and delivery of the first prototypes from a few months to a few weeks.
    Źródło:
    Archives of Foundry Engineering; 2021, 21, 1; 37-50
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Attempts to Prepare Precision Composite Castings by Sintering Al2O3/AlSi11 Using Underpressure
    Autorzy:
    Szymański, P.
    Gawdzińska, K.
    Nagolska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/381239.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative foundry technologies
    innovative foundry materials
    composites
    rapid prototyping
    innowacyjne technologie odlewnicze
    innowacyjne materiały odlewnicze
    kompozyty
    prototypy
    Opis:
    This article presents the preparation of composite casts made using the technology of precise casting by the method of melted models. The composite was reinforced with the ceramic sinter from Al2O3 particle shaped in a printed polystyrene female mould, which was fired together with precured ceramics. The resulting ceramic preform, after being saturated with paraffin and after the filling system is installed, was filled with liquid moulding sand and fired together with the mould. The reinforcement was saturated by means of the counter-pressure exerting action on the metal column, being a resultant of pressures inside and outside the chamber. The preliminary assessment showed no apparent defects in the shape of the cast. The casting was measured and the figures were compared with the dimensions of the matrix in which the reinforcing preform was made, the preform after firing and after saturation with paraffin. The results were presented in a table and dimensional deviations were determined. The composite casting was subjected to metallographic tests, which excluded any porous defects or damage to the reinforcement. It can therefore be said that, according to the predictions resulting from the previous calculations, the pressure values used allowed for complete filling of the reinforcement capillaries. The proposed method is therefore suitable for the preparation of precision composite castings with complex shapes.
    Źródło:
    Archives of Foundry Engineering; 2020, 20, 1; 49-54
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integration of Virtual Engineering and Additive Manufacturing for Rapid Prototyping of Precision Castings
    Autorzy:
    Krutiš, V.
    Šprta, P.
    Kaňa, V.
    Zadera, A.
    Cileček, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1837786.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    product development
    innovative foundry technologies
    virtual engineering
    rapid prototyping
    rozwój produktu
    innowacyjne technologie odlewnicze
    inżynieria wirtualna
    prototyp
    Opis:
    The present paper is concerned with the practical interconnection between virtual engineering tools and additive model manufacturing technologies and the subsequent production of a ceramic shell by rapid prototyping with the use of Cyclone technology to produce the aluminium casting prototype. Prototypes were developed as part of the student formula project, where several parts originally produced by machining were replaced by castings. The techniques of topological optimization and the combination with the tools of the numerical simulation were used to optimise the virtual prototype before a real production of the first prototype. 3D printing of wax pattern ensured direct and fast assembly of the cluster without any additional operations and troubles during dewaxing. The shell was manufactured in 6 hours thanks to a system of quick-drying of individual layers of ceramic shell. It has been verified that the right combination of individual virtual tools with the rapid prototyping can shorten the development time and delivery of the first prototypes from a few months to a few weeks.
    Źródło:
    Archives of Foundry Engineering; 2021, 21, 1; 51-55
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rapid Prototyping Technology Using for Casting Process of Mini Turbine Runner
    Autorzy:
    Hościło, B
    Kaczyński, R.
    Skorulski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/383216.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative foundry technologies
    innovative foundry materials
    rapid prototyping
    ceramic moulds
    miniturbine runner
    innowacyjne technologie odlewnicze
    innowacyjne materiały odlewnicze
    formy ceramiczne
    Opis:
    The previous mini-hydrogenator rotors’ prototypes were made of ABS thermoplastic material with use of fused deposition modelling (FDM). However, there is a need for such rotors made of metallic materials with higher strength. In paper three dimensional printing (3DP) as rapid prototyping technology, was presented, to execute a shell mould of rotor prototype. In initial phase, the moulds were prepared which allow to cast a simple geometric solid with different alloys, for comparative reasons. The form of rotor and testing cast moulds were designed using universal CAD environment and printed composite using material zp151 (Calcium sulfate hemihydrate) with a binder zb63 (2- pyrrolidone) for preparation of colourful presentation models or casting models. The suitability of technology usage with alloys of copper , aluminium and zinc, was analyzed. The strength of the mould during casting, a material resistant to high temperature, the quality of received casting and its surface roughness were assumed as the comparative parameters which characterized method.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 1 spec.; 83-86
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    3DP Technology for the Manufacture of Molds for Pressure Casting
    Autorzy:
    Skorulski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/383141.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative materials
    innovative casting technologies
    rapid prototyping
    ceramic mold
    pressure casting
    materiały innowacyjne
    innowacyjne technologie odlewnicze
    prototypy
    formy ceramiczne
    odlewanie ciśnieniowe
    Opis:
    The paper presents the use of rapid prototyping technology of three dimensional printing (3DP) to make a prototype shell casting mold. In the first step, for identification purposes, a mold was prepared to enable different alloys to be cast. All molds being cast were designed in a universal CAD environment and printed with the zp151 composite material (Calcium sulfate hemihydrate) with a zb63 binder (2-pyrrolidone). It is designated to be used to prepare colourful models presenting prototypes or casting models and molds. The usefulness of 3DP technology for use with copper alloys, aluminum and zinc was analyzed. The strength of the mold during casting was assumed as a characteristic comparative feature in the material resistance to high temperature, the quality of the resulting casting and its surface roughness. Casting tests were carried out in vacuum – pressure casting. The casting programs applied, significantly increased the quality of castings and enabled precise mold submergence. Significant improvement was noted in the quality compared to the same castings obtained by gravity casting.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 3; 99-102
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Analysis of the Accuracy of Wax Casting Models for Medical Applications
    Autorzy:
    Markowska, O.
    Budzik, G.
    Grzelka, M.
    Dziubek, T.
    Cader, M.
    Turek, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/380915.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative foundry materials
    innovative Foundry Technologies
    reverse engineering
    rapid prototyping
    vacuum casting
    measuring systems
    innowacyjne materiały odlewnicze
    innowacyjne technologie odlewnicze
    odlewanie próżniowe
    systemy pomiarowe
    Opis:
    The article presents an analysis of the dimensional accuracy of wax models, made by Vacuum Casting Method (VC), used in the manufacturing process of bone defects implants of the skull vault. Silicone molds were made on the basis of Rapid Prototypes (RP) models. The RP prototypes were created from 3D-CAD (CATIA V5) developed during studies of the shape of the cranial vault bone defects. The technology used in the RP process was stereolithography (SLA). During the researches also were used an additional tested models. These models were designed on the basis of the dome with cutouts of different shapes. The measurement process was conducted by optical coordinate measuring system. The research was carried out using an Atos Triple Scan scanner. The analysis presents that there is a possibility of using the technology of Vacuum Casting wax models in silicon molds, as the indirect method in the process of implementation of the implant-bone of the skull cap.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 1 spec.; 77-82
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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