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| Konštrukčné PM ocele obsahujúce legujúce prvky s vysokou afinitou ku kyslíku spekané v atmosférach s rôznym chemickým zložením | |
| Structural PM steels containing alloying elements with high affinity for oxygen sintered in atmosphere with different chemical composition | |
| Program: | Inter-academic agreement |
| Project leader: | RNDr. Kupková Miriam, CSc. |
| Duration: | 1.1.2016 – 31.12.2018 |
| Výskum konštrukčných ocelí spekaných v atmosférach rôzneho chemického zloženia | |
| The investigation of structural steels sintered in atmosphere with different chemical composition | |
| Program: | Bilateral – other |
| Project leader: | RNDr. Kupková Miriam, CSc. |
| Duration: | 1.8.2013 – 31.12.2015 |
| Štúdium správania sa uhlíkom povlakovaných legovaných práškov počas spekania a modelovanie procesu spekania | |
| Investigation of Behaviour of carbon Coated Alloyed Powders during Sintering and Modelling of the Sintering Process | |
| Program: | Inter-academic agreement |
| Project leader: | RNDr. Selecká Marcela, CSc. |
| Duration: | 1.1.2012 – 31.12.2014 |
| PROSURFMET – Modifikácie povrchových úptav PM nástrojových ocelí | |
| Modifications of Surfacing PM Tool Steels | |
| Program: | EUREKA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | Improvement of industrial properties of P/M cutting steels by the method of surface treatment of the functional surface (PVD-technologies, duplex coating with plasma nitrided layer as a "support layer" for additional PVD-methods). Realization of surface treatment of PM cutting and forming tools (Vanadis 4, 6, K190). Determination of suitable parameters of thermal deposition processes from the point of view of the coat/surface system behaviour under concrete conditions of loading. Evaluation of microstructure by light and scanning electron microscopy, in close association with image analysis (IA) oriented on surface characteristics (microhardness, adhesion, resistance to wear. Testing of tools under industrial conditions and microstructural analysis after their use. |
| Project webpage: | www.eureka.be |
| Duration: | 1.1.2005 – 31.12.2007 |
| UPLETOOLS – Povrchová úprava ledeburitických PM nástrojových ocelí | |
| Upgrading of ledeburitic type P/M tool steels | |
| Program: | EUREKA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | The aim of the project is to increase both the surface hardness and the wear resistence, in order to achieve the prolonging of the service time of cutting tools made from the PM high speed steels. The prolonging of the manufacture qualities will be achieved mainly by the plasma nitriding and PVD-coating. The experimental efforts are closely connected with those solved within the frame of the EUREKA E!2060 SURTELEM-project.Within this project,the PM made Vanadis30 – type high speed steel (HSS) has been investigated.Obtained know-how is assimed to be applied to the investigation of the newly developed cobalt containing PM HSS with an unusual chemical composition. |
| Duration: | 1.1.2002 – 31.12.2004 |
| SURTELEM – Metódy povrchových úprav pre progresívne ledeburitické ocele a tvrdé materiály | |
| Surfacing Techniques for Advanced Ledeburitic Steel and Hard Materials | |
| Program: | EUREKA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Duration: | 1.1.1999 – 31.12.2001 |
National
| Ino-Clad – Inovatívne prístupy pri obnove funkčných povrchov laserovým naváraním | |
| Innovative approaches to the restoration of functional surfaces by laser weld overlaying | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | The project is focused on the restoration of functional surfaces by laser weld overlying. Innovative approaches willbe applied in the restoration of functional parts of molds for high-pressure die casting of aluminum alloys. Laserweld overlaying technology will be used for the formation of restoration layers in order to significantly reduce thenegative impact of the introduced heat on the quality of sub-weld layers. Newly designed additional materialsbased on Co, Ni, Fe with the presence of dispersed abrasion-resistant precipitates will be used. Additionalmaterials for laser welding will be used in the form of wires made of Uddeholm Dievar and Maraging. For bettervariability of the chemical composition, powder additives based on Fe with the addition of B, Ti, Nb, Mo, V and Wwill also be used to create weld overlays. The optimal method of heat treatment of weld overlays will be proposed.Research will further focus on microtexturing the surface of molded parts by low-energy laser radiation usinginnovative engraving surface treatment methods (LBT and EBT) in order to ensure a smooth distribution of theseparating agent on the mold surface. Experimental work will be focused on modifying the microgeometry of thesurface of new and renovated shaped parts of molds so that in the phase of "run-in of the mold" a compact layer ofthe separating agent is created to increase the technological life of molds. PVD and PE-CVD technologies will beused for this purpose. |
| Duration: | 1.7.2021 – 30.6.2024 |
| Dizajn topografie povrchov nástrojov z WC-Co s aplikovanými PVD povlakmi | |
| Design surface topography tools from the WC-Co applied PVD coating | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | The aim of the project is to solve the partial role of the optimization process of Ni-super alloys used in the aircraft industry, specifically in jet engines. In the machining of Ni-superalloys, a high thermal and mechanical load occurs in the active area of the tool, reducing its lifetime and decreasing production efficiency. The challenge is the design and experimental verification of the new surface texture design of the active parts of the machining tool from WC-Co, the laser pre-treatment technology and the PVD coating of the 4th generation. Surface topography of the active part of the instrument will be modified by impulse laser radiation with controlled energy density and controlled area distribution of the heat exposed areas. The resulting surface of the active part of the tool will contain microcraters at the desired depth profile positions. The output will be an innovated texture of the tool surface in order to make machining of special nickel superalloys more effective – Inconel 713, resp. 718. |
| Duration: | 1.1.2020 – 31.12.2022 |
| ZELASHYK – Zvyšovanie efektívnosti lisovania a spájania dielov hybridných karosérií | |
| Increasing the efficiency of forming and joining parts of hybrid car bodies | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Nowadays, there is a characteristic continual pressure on the emission reduction produced by the cars. Onepossible way to reduce the amount of emissions produced by the automobiles is the reduction of the bodyweight. The weight of the automobile could be reduced through the hybrid car body, which consists of differentmaterials based on the light alloys, composite materials and high-strength steel sheets. Solutions related to suchhybrid car body designs must be addressed in to the forming, but also to the joining of the individual parts ofsuch multi-material conception. The aim of the project is the optimization of the forming conditions of aluminiumalloy sheets and high-strength steel sheets to increase the process efficiency. The appropriate joining techniquewill be proposed based on the results of the analyses of the stress-strain states of the formed parts. Acomparison of strength and load-bearing capacity of the joints after different intensity of deformation and stressstrainstates will be the assumed result. Effective and innovative methods of joining of aluminium and highstrengthsteel sheets after different intensity of deformation and stress-strain states will be assessed. The resultsobtained from the optimization of the joining process of the materials made of ferrous and non-ferrous metals willallow the strength of joints to be increased. |
| Duration: | 1.7.2018 – 31.5.2022 |
| FOROPTIMAT – Výskum vplyvu inovácií postupov výroby na životnosť nástrojov a komponentov lesných mechanizmov | |
| Research on the impact of process innovation on lifespan of forestry machinery tools and components | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Project is focused on research on the impact of process innovation on lifespan of forest machines tools and components. During the project it will be elaborated a comprehensive analysis of the current status in using of working tools and components from material and technology points of view. In order to find stress-strain state of tools and components it will be performed FEM analysis. Further, it will be performed state material analysis of specimens to examine their physical and mechanical properties, microstructure characteristic and resistance to abrasive wear. Based on the results of aforementioned analyzes it will be proposed and applied innovative methods of production technology and surface treatments procedures for exposed functional areas in order to increase their function life. In order to comparison the same experimental tests on specimens will be repeated. Based on the results of comparison, it will be carried out selection of optimal innovative procedures. Selected procedures will be applied and tested in the operating conditions of forestry. It is expected that implementation of the results of applied research will increase lifespan of forest machines tools and components thereby reducing their maintenance costs and purchase costs. |
| Duration: | 1.7.2017 – 31.12.2020 |
| Inotech – Využitie inovatívnych technológií obnovy funkčných plôch foriem na výrobu odliatkov pre automobilový priemysel | |
| The utilization of innovative technology for repair functional surfaces of mold casting dies for castings in automotive industry | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | The project aims at increasing the service life of shaped parts of molds and cores for high pressure die casting (HPDC) of aluminum alloys for the automotive industry. Increasing the service life of casting moulds and dies is achieved using innovative technologies of restoration their functional shape surfaces. For this renovation purpose will be used hard surfacing of functional surfaces of tools in combination with PVD and PE-CVD coatings made of new advanced nanomaterials based on TiAlN, CrAlN and TiB. There will be experimentally verified the effectiveness of local heat exposure of renovated as well as original surface of shaped casting mould to laser as a method of surface pretreatment before deposition thin coatings using PVD or PE CVD technology. The application potential of the project lies in reducing the cost of maintenance moulds and dies, in saving of material resources and also in increasing the productivity and reliability of the process of aluminum castings production. |
| Duration: | 1.7.2017 – 31.12.2020 |
| Výskum systémov duplexných nanokompozitných PVD povlakov s laserom modifikovaným podkladovým materiálom pre aplikácie tlakového liatia kovov. | |
| Research of systems of duplex nanocomposite PVD coatings with laser – modified base material intended for pressure mould cast applications. | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | The goal of the project is the development of an innovative process of surface treatment of tools and parts of moulds for pressure metal casting. The process involves laser heating of tool surface which takes place after the final thermal treatment, and subsequent depositing of duplex PVD coating. The contribution of the project willconsist in testing the nanocomposite PVD coatings deposited to specimens from steel intended for hotapplications, subjected to laser treatment before coating and testing their mechanical,tribological and chemical properties at interaction of molten aluminium with the mould material. By treatment of these materials / machine parts by laser in combination with duplex PVD coating the following properties will be achieved: high resistance towear and excellent resistance to thermal shocks which are the factors affecting service life of functional parts of moulds used for for pressure casting, and of mould cavities. |
| Duration: | 1.1.2017 – 31.12.2019 |
| Vplyv parametrov laserového zvárania na štruktúru a vlastnosti zvarových spojov moderných ocelí pre automobilový priemysel | |
| Influence of laser welding parameters on microstructure and properties of welded joints of advanced steels for automotive industry | |
| Program: | VEGA |
| Project leader: | Ing. Kepič Ján, PhD. |
| Annotation: | The project is focused on prediction of laser welded joint behaviour at different strain rates. Mentioned simulatedthe real crash tests by creating new and cost-efficient test methods available in the laboratory. The strength anddeformation properties of high-strength steel sheets, laser welded tailored blanks and composites will beinvestigated by tensile, 3-point bending and cyclic bending tests. The measured characteristics of these materialswill be compared with the characteristics of progressive materials such as aluminium alloys and composites. Thethermodynamic calculations will be performed before welding in order to predict phase composition ofpolycomponent welds depending on welding conditions (power, welding rate and focus position). To reach theobjectives the method of design of experiment, experimental tests and numerical simulations based on finiteelements metod will be used. |
| Duration: | 1.1.2016 – 31.12.2018 |
| ZKVAVESE – Zvýšenie kvality výstrižkov a efektívnosti strihania elektroplechov | |
| Increasing the quality of cut-outs and effectiveness of cutting electric sheets | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Electric tractions (motors) are inseparable part of many devices from the motor for home appliances through theelectric motors for machines and equipment to electric motors for electric vehicles. Most of these motors consistof the rotor and stator, which are based on the cut-outs from electrical sheets. The cut-outs are joined into therotor and stator bundles. When making the bundles, the important factor is the quality of cutting surface, whichalso influences the additional operations. It also has a significant effect on the quality parameters of electricmotors (size of losses by engine heating). The proposed project has the ambition to solve the optimization of thequality of cutting existing and new developed electrical sheets in context of the expected development ofproduction of electric vehicles. The base of the experimental part is the verification of new tool materials(including uncoated ones) for the production of the active parts of cutting tools for the purpose of increasing thequality of cutting surface and tool life and thereby increasing the efficiency of production of cut-outs fromelectrical sheets. |
| Duration: | 1.7.2015 – 30.6.2018 |
| Výskum procesov degradácie moderných nanokompozitných multivrstiev v tavenine zlievárenských zliatin hliníka. | |
| Investigation of degradation processes of advanced nanocomposite mutilayers in melt of aluminum foundry alloys. | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | The objective of the project is to study the partial processes occurring in the interaction of aluminum melt with advanced PVD coatings deposited onto the substrate used for the production of cores for forms and ejectors.There will be analysed the local tribological and mechanical properties of systems melt – coating-substrate depending on the variability of the process of preparation, composition and application as a result of the environmental influence. The main benefits of the project will include the selection and testing of advancedmultilayer and nanocomposite coatings deposited on samples from steels for hot working and testing their resistance in molten aluminum. Preferred features of this steel group coated by optimal types of coatings will pose the combination of properties such as high abrasive wear resistance and superior protection against thermal shocks, which are essential factors influencing lifetime of functional components of forms for metal casting under pressure. |
| Duration: | 1.1.2014 – 31.12.2016 |
| AMETIST – Biologicky odbúrateľné kovové materiály pripravené práškovými technológiami | |
| Biodegradable metallic materials prepared by powder technologies | |
| Program: | SRDA |
| Project leader: | RNDr. Kupková Miriam, CSc. |
| Project webpage: | http://ametist.saske.sk |
| Duration: | 1.7.2012 – 31.12.2015 |
| Lokálne mechanické vlastnosti kostného cementu | |
| Local mechanical properties of bone cement | |
| Program: | VEGA |
| Project leader: | doc. RNDr. Hvizdoš Pavol, DrSc. |
| Annotation: | The main purpose of the project is to investigate mechanical properties of bone cement, as well as structuralintegrity and properties of interfaces of bone cement with selected prosthetic materials. The emphasis will be inexperimental studies of hardness and modulus of elasticity of bone cement by means of instrumented indentationand nanoindentation on local micro- and nano-level in relation with parameters of preparation, composition(presence and absence of antibiotics), and with parameters of formed microstructure (grain size, porosity) withaim to understand their influence on the resulting behaviour. Similarly, the cement / prosthesis interfaces will beinvestigated, the mechanical as well as tribological properties will be measured, and their consequnces on themechanical stability of particular joinings will be evaluated. |
| Duration: | 1.1.2013 – 31.12.2015 |
| Príprava a charakterizácia nanoštruktúrovaných funkčných vrstiev | |
| Preparation and characterization of nanostructured functional layers | |
| Program: | VEGA |
| Project leader: | RNDr. Kupková Miriam, CSc. |
| Duration: | 1.1.2012 – 31.12.2015 |
| APONAZEP – Aplikácia progresívnych povlakov nástrojov pre zvýšenie efektívnosti a produktivity lisovania plechov z moderne koncipovaných materiálov | |
| Application of progressive tool coatings for increasing the effectiveness and productivity of forming sheets made of modern materials | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Project solves problems of forming process optimisation and increasing of forming dies lifetime by application of thin coatings to die´s contact surfaces and researches interaction of tribologic pair die surface-sheet surface.Within the project will be researched coated steel sheets (galvanized, tin) as well as aluminium alloys sheets used in automotive and consumers industry. Tribologic system die surface-sheet surface will be researched from the view their surface topology, adhesive and abrasive wearing and deformation and failure mechanisms of die and sheet coatings. Research of active die parts will be focused to coating-die material system in initial state, after deposition conventionial coating based on Ti-Al-N and after deposition new composite coatings based on TiN, TiCN and TiAlN.These coating will be researched before and mechanical loading and after working condition simulation. Modern experimental techniques will be used to diagnose system coating-die material degradation under known qualitative stress distribution in analysed area. Experimentally measurable strength and structural parameters of coating-die material will be identified, that have dominant influence to processed sheets surface quality and die´s lifetime. Wearing tests laboratory results of coatings will be correlated to results of forming dies coatings loading under industial and semi-industrial conditions. |
| Duration: | 1.7.2012 – 30.6.2015 |
| Kovové biomateriály pripravené práškovými technológiami | |
| Metallic biomaterials prepared by powder-processing techniques | |
| Program: | VEGA |
| Project leader: | RNDr. Kupková Miriam, CSc. |
| Duration: | 1.1.2012 – 31.12.2014 |
| Výskum vlastností kompozitných povlakov aplikovaných modernými PVD technológiami na nástrojoch práškovej metalurgie | |
| Research of the properties of composite coatings applied by advanced PVD technologies onto powder metallurgy tools | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | Research of the properties of multilayer composite coatings deposited by modern PVD technologies onto tools produced by powder metallurgy (PM). Modern PVD coating technologies (ARC and LARC methods)will be used for deposition of coatings based on (Ti,Al)N with addition of Cr, Si, or as Ti substitution. The system coating–base substrate will be subjected to the research focusing on degradation of the coating surface under condition of mechanical wear. For the investigation of failure mechanisms will be used analytical methods – light, electron andtransmission microscopy, AFM to study surface morphology and its roughness, evaluation of adhesive-cohesive properties, indentation and tribological tests, mechanical bending and compression tests and tests of service life.Interpretation of mutual physical and tribological relationships within the scope of analysed systems and conditions of testing on concrete materials will contribute to the knowledge on utilization of new types of coatingsin the working process. |
| Duration: | 1.1.2011 – 31.12.2013 |
| Štúdium charakteristík PVD povlakov na nástrojových oceliach pripravených práškovou metalurgiou a ich | |
| Study of Characteristics of PVD Coatings on the Tool Steels prepared by Powder Metallurgy and their Behaviour | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | Study of the effect of the non-coated and coated inserts (VANADIS30 and S390 grades), prepared by powder metallurgy (PM), on the service life at machining of selected sintered materials based on iron. Single- and multilayered coatings based on TiN will be deposited by the PVD method. Complex analysis of the coating/substrate system, microstructural composition of deposited coatings and determination of mechanical and technological properties of the coated system. Detailed analysis of the failure of tools and PM workpiecesmainly in the area of their contact. Explanation of physical and tribological relationships between the material of sintered workpiece and the cutting tools. The results will be a contribution to the knowledge about themachinability of sintered materials by the coated PM cutting tools. |
| Duration: | 1.1.2008 – 31.12.2010 |
| Tribologické aspekty porušovania spekaných materiálov s dôrazom na kontaktnú únavu a opotrebenie. | |
| Tribologic aspects of sintered materials failures as a result of rolling contact fatigue and wear | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | The subject of project is to study the behavior of classical sintered ferritic materials with the density cca 7g.cm-3 under contact fatigue and wear conditions. Sintered materials, by their specific structure (presence of pores ), are known for their different responses to different forms of stresses. These facts along with theintensive expansion in production of spareparts on the basis of sintered materials, mostly in automotive industry, call for both basic research and systematic monitoring of attributes affecting service life of materials under stress. The results achieved will widen the area of knowledge in this field and assist in establishing the priorities of main directions of basic or applied research. |
| Duration: | 1.1.2008 – 31.12.2010 |
| DMKO – Dizajn moderne koncipovaných ocelí na základe charakteristík lisovateľnosti | |
| Design of advanced conceived steels based on pressability characteristics | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | The aim of the project is the derivation of predicting relations between pressability characteristics (boundary drawing ratio, IE, FLD) and microstructure parameters, creating of model maps of applications of advanced sorts of sheets from low-carbon steels and knowledge expansion about deformation mechanisms of particular phases of galvanized steel sheets with pure zinc coatings and Fe-Zn coatings. Limiting conditions of deformation, friction, wear, eventually coating destruction in relation to characteristics of technological processing by pressing of progressive materials will be defined. The project deals with optimization of multiphase steels microstructure and knowledge expansion about zinc coatings of advanced conceived steel sheets acording to characteristics of technological pressability. |
| Duration: | 1.2.2007 – 30.6.2010 |
| Štúdium povlakovaných povrchových vrstiev nástrojových ocelí pripravených práškovou metalurgiou | |
| Study of coated surface layers of tool steels prepared by powder metallurgy | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | Study of surface layers of PM tool steels by application of coating with PVD-technologies, duplex coating (plasma nitrided layer as a "support layer" for additional PVD-methods) with the aim of an improvement of their functional properties. Surface treatment of tools made from PM steels – machining tools (HSS-S590-Vanadis 30), cutting and forming tools (Vanadis 4 a 6, K190). Determination of suitable parameters of thermal deposition processes from the point of view of the coat/surface system behaviour under specific loading conditions. Microstructure evaluation by light and scanning electron microscopy, in connection with image analysis (IA) oriented on the surface characteristics (microhardness, adhesion, wear resistance). |
| Duration: | 1.1.2005 – 1.12.2007 |
| Povrchová úprava práškovej rýchloreznej ocele | |
| Surface treatment of high speed steel prepared by powder metallurgy | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | The aims of the proposed project can be characterised as follows; a complex analysis of the materials developed during previous projects solving, consolidated by hot isostatic pressing (HIP) technology with optimised microstructure, heat treatment and excellent mechanical properties including the microstructure evaluation depending on production process conditions, intermediate product refinement and final high speed cutting tool – cutting inserts taps. The selected materials – powder high speed steel alloyed by Co and Nb resp. vanadis 30 type – will be surface treated by plasma nitridation in order to achieve higher hardness, toughness and wear resistance. The appropriate thickness of nitride coating will be defined at different time-temperature conditions and documented by microstructural analysis. The wear resistance, hardness, ultimate strength, toughness and cutting edge durability tests will be realised. |
| Duration: | 1.1.2002 – 31.12.2004 |
| Zákonitosti vzťahov medzi mikroštruktúrou a vlastnosťami nekonvenčných rýchlorezných ocelí vyrobených cestou práškovej metalurgie | |
| Regularities of relationship between microstructure and properties of unconventional high speed steels produced via powder metallurgy | |
| Program: | VEGA |
| Project leader: | Ing. Jakubéczyová Dagmar, CSc. |
| Annotation: | The aim of the scientific project is to study the relationship between technology conditions, microstructure and properties of newly developed unconventional high-speed steels (HSS) prepared via progressive powder metallurgy (PM) techniques. The starting chemically modified powder with addition of microcrystalline powders will be produced under rapid solidification (RS) conditions using nitrogen atomising of melt into nitrogen and consolidated. There will be determined the relationship between chemical composition, microstructure and cutting properties. |
| Duration: | 1.1.1999 – 31.12.2001 |