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Papers by Ivica Veza
CWEDM process can compete hard turning and grinding in a hard-to-reach areas for turning and grin... more CWEDM process can compete hard turning and grinding in a hard-to-reach areas for turning and grinding technologies, both from hard machinable materials and geometry demand aspect. For every WEDM process the most important performance measures are material removal rate, surface finish, dimensional accuracy and geometry features. Process errors can occur and be unrecognized by machine feed rate control loop, what leads to final product geometry failure, or to necessary rework. In case of constant feed rate, leak of parameter technology tables contribute to feed rate selection failure. Gap voltage monitoring can detect initialization of process irregularity in early stage, which warn operator to slow down the process.
Advances in Production Engineering & Management, Dec 10, 2016
Social Science Research Network, 2023
Computer center, as well as any organizational entity, established requirement for efficient orga... more Computer center, as well as any organizational entity, established requirement for efficient organization of their data and information flow in its business activities. These requirements are largely manifested in a computer center of large scale, with a greater number of employees, more prominent organizational structure, a large number of projects and software solutions. This paper discusses some key aspects of information system of computer center. Solutions can be shown to have universal application in different segments.
U radu su prikazane neke mogucnosti razvoja i primene kompjuterske podrske pri utvrdivanju vremen... more U radu su prikazane neke mogucnosti razvoja i primene kompjuterske podrske pri utvrdivanju vremena potrebnog za izradu jednog proizvoda. Akcenat rada je postavljen na razmatranja o razvoju kompjuterske podrske od strane samog korisnika, cime se omogucava modifikovanje predloženog resenja i iskazivanje specificnih zahteva. Razmatrana kompjuterska podrska je zasnovana na teoretskim postavkama normiranja vremena u industriji.
Today highly competitive market and demands for obtain high surface finish and machining of compl... more Today highly competitive market and demands for obtain high surface finish and machining of complex shape geometries replace conventional machining processes with non-conventional. Plasma jet cutting is one of these non- conventional processes that primary uses a thermal energy of highly ionized gas to cut specified material and blow molten metal away. Main advantages of plasma jet cutting process are high speed of cutting, cutting different types of materials, the quality of cut and moderate to low investment costs. This paper presents experimental results concerning the surface roughness variation at plasma jet cutting of structural steel S235JRG2 plate thickness of 15 mm. Using the experimental data artificial neural network (ANN) model was developed in order to predict the surface roughness in terms of two input parameters, cutting current and cutting speed. After the prediction accuracy of the developed model was validated, the model was used for analyzing influence of input pa...
CWEDM process can compete hard turning and grinding in a hard-to-reach areas for turning and grin... more CWEDM process can compete hard turning and grinding in a hard-to-reach areas for turning and grinding technologies, both from hard machinable materials and geometry demand aspect. For every WEDM process the most important performance measures are material removal rate, surface finish, dimensional accuracy and geometry features. Process errors can occur and be unrecognized by machine feed rate control loop, what leads to final product geometry failure, or to necessary rework. In case of constant feed rate, leak of parameter technology tables contribute to feed rate selection failure. Gap voltage monitoring can detect initialization of process irregularity in early stage, which warn operator to slow down the process.
Advances in Production Engineering & Management, Dec 10, 2016
Social Science Research Network, 2023
Computer center, as well as any organizational entity, established requirement for efficient orga... more Computer center, as well as any organizational entity, established requirement for efficient organization of their data and information flow in its business activities. These requirements are largely manifested in a computer center of large scale, with a greater number of employees, more prominent organizational structure, a large number of projects and software solutions. This paper discusses some key aspects of information system of computer center. Solutions can be shown to have universal application in different segments.
U radu su prikazane neke mogucnosti razvoja i primene kompjuterske podrske pri utvrdivanju vremen... more U radu su prikazane neke mogucnosti razvoja i primene kompjuterske podrske pri utvrdivanju vremena potrebnog za izradu jednog proizvoda. Akcenat rada je postavljen na razmatranja o razvoju kompjuterske podrske od strane samog korisnika, cime se omogucava modifikovanje predloženog resenja i iskazivanje specificnih zahteva. Razmatrana kompjuterska podrska je zasnovana na teoretskim postavkama normiranja vremena u industriji.
Today highly competitive market and demands for obtain high surface finish and machining of compl... more Today highly competitive market and demands for obtain high surface finish and machining of complex shape geometries replace conventional machining processes with non-conventional. Plasma jet cutting is one of these non- conventional processes that primary uses a thermal energy of highly ionized gas to cut specified material and blow molten metal away. Main advantages of plasma jet cutting process are high speed of cutting, cutting different types of materials, the quality of cut and moderate to low investment costs. This paper presents experimental results concerning the surface roughness variation at plasma jet cutting of structural steel S235JRG2 plate thickness of 15 mm. Using the experimental data artificial neural network (ANN) model was developed in order to predict the surface roughness in terms of two input parameters, cutting current and cutting speed. After the prediction accuracy of the developed model was validated, the model was used for analyzing influence of input pa...