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Št. zadetkov: 8
Modeling and optimization of finish diamond turning of spherical surfaces based on response surface methodology and cuckoo search algorithm
Davorin Kramar, Djordje Cica
Izvirni znanstveni članek
Oznake: brass alloy;diamond turning;surface roughness;spherical surface;modeling;optimization;response surface methodology;cuckoo search;
Surface roughness is one of the most significant factors to indicate the prod- uct quality. Diamond turning is an efficient and highly accurate material re- moval process to improve the surface quality of the workpiece. In the present study, the arithmetic mean absolute roughness (Ra) and total heig ...
Leto: 2021 Vir: Fakulteta za strojništvo (UL FS)
Experimental investigation and optimization of tool life in high-pressure jet-assisted turning of Inconel 718
Davorin Kramar, Djordje Cica
Izvirni znanstveni članek
Oznake: high-pressure jet-assisted turning;tool life;Inconel 718;optimization;
The application of high-pressure jet-assisted (HPJA) machining can increase tool life during machining, as the cutting fluid penetrates better into the interfaces between the tool and the workpiece. In this work, tool life in semi-finish turning of Inconel 718 with coated carbide tools and a high-pr ...
Leto: 2025 Vir: Fakulteta za strojništvo (UL FS)
Analysis and optimization of micro-milling parameters for improving part quality in ultrafine graphite with varying workpiece inclination angles
Davorin Kramar, Goran Mijušković, Djordje Cica
Izvirni znanstveni članek
Oznake: micro-milling;graphite;workpiece inclination angle;optimization;dimensional accuracy;surface quality;taguchi method;grey relational analysis;
Micro-milling is recognized as one of the most important manufacturing technologies for producing micro-components/products. Amongst various materials, graphite has an important role in conventional micro-electrical discharge machining electrodes. This paper is focused on the investigation of the ef ...
Leto: 2025 Vir: Fakulteta za strojništvo (UL FS)
Experimental analysis and optimization of thin-walled tubular parts milling
Branislav Sredanović, Djordje Cica, Stevo Borojević, Saša Tešić, Davorin Kramar
Izvirni znanstveni članek
Oznake: thin-walled structures;milling;experiments;optimization;
A certain percentage of mechanical parts in the engineering (parts in automotive industry, medical and measuring devices, parts in energetic sector, and etc.), refers to thin-walled structures with optimized shapes and dimensions. In addition to the requirements for a special shape of the structure, ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
Optimization of superalloy Inconel 718 micro-milling process by combined Taguchi and multi-criteria decision making method
Branislav Sredanović, Djordje Cica, Stevo Borojević, Saša Tešić, Davorin Kramar
Izvirni znanstveni članek
Oznake: micro-cutting;Inconel 718;micro-milling processes;Taguchi method;
Micro-cutting of Inconel 718 superalloys is very difficult due to its mechanical and chemical properties. It must be carried out under controlled and sustainable machining conditions to achieve adequate surface quality and dimensional accuracy. In this study, micromilling of channels is performed wi ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Multi-objective optimization of sustainable steel AISI 1045 turning energy parameters under MQL condition
Branislav Sredanović, Djordje Cica, Stevo Borojević, Saša Tešić, Davorin Kramar
Izvirni znanstveni članek
Oznake: sustainable production;sustainable machining;advanced techniques;minimum quantity lubrication;
Sustainable production requires reducing of production waste, energy consumption, and more efficient machining processes. However, in machining must be introduced advanced techniques for cooling and lubrication of cutting zone. An advanced techniques is minimum quantity lubrication (MQL), can be con ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Energy consumption analysis and parameter optimization in high-feed milling operation
Branislav Sredanović, Stevo Borojević, Djordje Cica, Saša Tešić, Dajana Jokić, Davorin Kramar
Izvirni znanstveni članek
Oznake: high-feed milling;energy consumption;modelling;optimization;
Improving the performance, efficiency and productivity of the machining, reducing energy consumption and establishing control over the machining process are the main goals of the production technologies development. This paper provides the basis for establishing of a process management and determini ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Multi-objective optimization of milling Ti-6Al-4V alloy for improved surface integrity and sustainability performance
Djordje Cica, Saša Tešić, Milisav Markovic, Branislav Sredanović, Stevo Borojević, Milan Zeljković, Davorin Kramar, Franci Pušavec
Izvirni znanstveni članek
Oznake: MQL;cryogenic;3D surface roughness;microhardness;energy consumption;sustainability assessment;multi-objective optimization;
Ti-6Al-4V is a titanium-based alloy that is widely used in a diverse range of applications, especially in industries such as biomedical and aerospace. Several lubricooling techniques have been introduced to enhance the machinability of these materials. Among them, environmentally friendly strategies ...
Leto: 2025 Vir: Fakulteta za strojništvo (UL FS)
Št. zadetkov: 8
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