Конференције / Conference paper

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https://vaseljena.ues.rs.ba/handle/123456789/816

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Прегледај Конференције / Conference paper по Аутор "Anić, Jelica"

Сада се приказује 1 - 6 од 6
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    COMPARING THE ACCURACY OF MASTER MODEL AND THEIR REPLICAS PRODUCED BY RAPID TOOLING USING VACUUM CASTING
    (Mašinski fakultet, Univerzitet u Banjoj Luci, 2019) Kraišnik, Milija; Ilić, Jovica; Jotić, Goran; Mačkić, Tihomir; Anić, Jelica; Gvero, Petar; Prochaska, Biljana
    In this paper we compared the accuracy of an original master model which was used to make the silicone mold and mold cavity and its replicas obtained by the vacuum casting technology. This technology allows us to create small batches of parts based on the master model in a relatively short time. The aim of the paper is to compare the accuracy of replicas produced with the OEM part using a reversible engineering technique, that is, CAD to part.
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    DEVELOPMENT OF SMALL BATCHES OF FUNCTIONAL PARTS USING INTEGRATION OF 3D PRINTING AND VACUUM CASTING TECHNOLOGY
    (University of Banja Luka, Faculty of Mechanical Engineering, 2017) Šljivić, Milan; Kraišnik, Milija; Ilić, Jovica; Anić, Jelica
    In conditions of dynamic market environment there is an increasing requirement for rapid development and production of complex and functional parts from different materials. In this paper, we present the process of development and production of small batches of functional parts in the integrated system of additive and vacuum casting technology. All advantages of this integrated approach were used during the research. Data obtained from the manufacturer were used for the proper selection of materials and they relate to the value of mechanical characteristics.
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    FABRICATION OF SMALL BATCHES OF FUNCTIONAL AND AUTHENTIC PARTS FOR OLD-TIMERS USING INTEGRATION OF MATERIAL EXTRUSION AND VACUUM CASTING TECHNOLOGIES
    (Department of Mechanical Engineering, Aristotle University of Thessaloniki, Greece, 2017) Kraišnik, Milija; Šljivić, Milan; Ilić, Jovica; Anić, Jelica
    This paper focuses on production of small series of functional parts for old timers, for which it is very difficult and in some cases impossible to find spare parts. Specifically, the paper presents the possibilities of designing and making authentic parts with special requirements of the owner or the collector of old timers. As a result of this study, a small series of authentic parts and replicas based on the existing functional parts of the oldtimers was designed and fabricated. The results of experimental studies have highlighted the advantages of production that is based on the integration of technology of material extrusion and vacuum casting, especially for small series of complex and specific products.
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    LAYER THICKNESS INFLUENCE OF MACRO- AND MICROSTRUCTURE QUALITY OF 3D PRINTED PARTS
    (Faculty of Engineering, University of Kragujevac, 2019) Đurić, Aleksija; Gojković, Ranka; Marković, Biljana; Moljević, Slaviša; Anić, Jelica
    In this paper will be analyzed the influence of the layer thickness on the micro and macro structure of the parts obtained by 3D printing, i.e. fused filament fabrication (FFF) technology. Specimens for analysis will be printed on the 3D printer Zotrax M 200, and the macro and microstructure will be done on the VHX 6000 microscope. It will be shown in the paper that by increasing the thickness of the layer, the time required for the production of the part will be significantly reduced, but also the quality of the surface is also significantly affected.
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    Procjena radnog stanja kotrljajnih ležajeva uz softversku podršku
    (Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu, 2015) Marković, Biljana; Anić, Jelica; Košarac, Aleksandar
    Ležajevi su mašinski elementi čiji je zadatak da omoguće relativno kretanje obrtnih dijelova uz istovremeno prenošenje opterećenja između njih i obezbjeđenje tačnosti njihovog položaja. Mogućnosti otkaza ovog elementa su veoma velike, a s obzirom na visok procenat prevremeno uništenih ležajeva, razvijene su brojne metode za detekciju, ne samo oštećenog stanja kotrljajnog ležaja, već i za identifikaciju tipa otkaza ležaja. Jedna od metoda za detekciju je vibrodijagnostika. U ovom radu prikazana je primjena savremenih vibrodijagnostičkih metoda za utvrđivanje stanja ispravnosti kotrljajnih ležajeva, sa ciljem prediktivnog održavanja tehničkih sistema, uz podršku softvera za analizu rezultata ispitivanja.
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    SOME ASPECTS OF DEVELOPMENT OF PLASTIC FRACTURE IN THE PROCESS OF COLD BULK FORMING
    (Technical faculty “Mihajlo Pupin” Zrenjanin, University of Novi Sad, 2016) Kraišnik, Milija; Šljivić, Milan; Anić, Jelica; Ilić, Jovica
    The main limiting factor in increasing the productivity of the process of cold bulk metal forming is the appearance of plastic fracture. However, proper design of a technological process can greatly increase formability of the material. For those activities it is necessary to fully understand all the factors that affect constituent stages of development and the appearance of macroscopic damage on metal components. Therefore, based on the available literature resources and our own research, the impact of the most dominant factors on accumulation of critical damage of microstructure in cold bulk metal forming processes with special reference to the impact of stress state was analyzed in this paper.