Petrů Jana VSB – Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Machining, Assembly and Engineering Metrology, Ostrava, Czech Republic, EU, jana.petru@vsb.cz, jan.schiffner.st@vsb.cz, tomas.zlamal@vsb.cz, robert.cep@vsb.cz, jiri.kratochvil@vsb.cz
Co-authors: Schiffner Jan Zlámal Tomáš Čep Robert Kratochvíl Jiří Stančeková Danka
Abstract: The article concerns the machining process of the titanium alloy Ti6Al4V according to the norm DIN W. Nr 3.7164 and the choice of a suitable cutting tool. [..] Read more
NOWAK Jan BOSMAL Automotive Research &Development Institute Ltd., Bielsko-Biala, Poland, EU, jan.nowak@bosmal.com.pl
Co-authors: ADAMASZEK Krzysztof PIECHA Inga JURASZ Zbigniew
Abstract: Valve-seats are the most thermally and mechanically loaded components of combustion engines. These loads increase rapidly with the use of LPG and CNG gaseous fuels. [..] Read more
PIEKARSKA Wiesława Czestochowa University of Technology, Institute of Mechanics and Machine Design Foundations, Czestochowa, Poland, EU, piekarska@imipkm.pez.pl
Co-authors: GOSZCZYŃSKA-KRÓLISZEWSKA Dorota DOMAŃSKI Tomasz SATERNUS Zbigniew KUBIAK Marcin
Abstract: In the paper the method of predicting the structural composition and mechanical properties of heat affected zone (HAZ) welded joints using the analytical methods was presented. On the basis of presented phenomenological formulas the computational CCT diagram and corresponding with it phase composition according to cooling rates of S355 steel was created. [..] Read more
PIEKARSKA Wiesława Czestochowa University of Technology, Institute of Mechanics and Machine Design Foundations, Czestochowa, Poland, EU, piekarska@imipkm.pcz.pl, saternus@imipkm.pcz.pl, kubiak@imipkm.pcz.pl, domanski@imipkm.pcz.pl
Co-authors: SATERNUS Zbigniew KUBIAK Marcin DOMAŃSKI Tomasz
Abstract: The work concerns the modeling and numerical analysis of thermal phenomena in laser welded T-joints. The effect of laser beam slope relative to welded elements on the temperature distribution is analyzed. [..] Read more
BUNDA Zbyněk University of West Bohemia, Regional Technological Institute, Pilsen, Czech Republic, EU, bunda@rti.zcu.cz
Co-authors: VOLÁK Josef SCHUBERT Jan
Abstract: Assessment of remaining lifetime represents a very complicated problem, which needs the knowledge of degradation processes in the material of a component, and also the service conditions of the components, e.g. way of loading and the influence of the surrounding environment. [..] Read more
PAPADATU Carmen-Penelopi Dunarea de Jos University, Galati, Romania, EU, papadatu.carmen@yahoo.com
Co-authors: COTEŢ Adrian VASILESCU Elisabeta ANDREI Gabriel
Abstract: In the last 20 years, the technical progress made it possible the use of very hard materials in several fields like manufacturing parts for the car industry, the pieces for railroad, for nuclear power, in aeronautics and in the mechanical industries.In this paper, it was studied the evolution of the superficial layer at the steel subjected to a non-conventional treatment, during the wear tests. It is a rundown of the results obtained. [..] Read more
EREMIAS Boleslav SVUOM Ltd., Prague, Czech Republic, EU
Co-authors: TUREK Libor
Abstract: For cooling tubes manufactured of aluminized carbon steel with inner surface welded longitudinally the question arises if the anticorrosion quality of Al coating produced on external surface can be influenced by the presence of the weld area on internal surface. In fact this quality is related to Al coating ability to prevent or at least to inhibit the corrosion process occurring during penetration of coating by water environment to the steel-coating interface. [..] Read more
DOBROCKÝ David University of Defence in Brno, Faculty of Military Technology, Brno, Czech Republic, EU
Co-authors: STUDENÝ Zbyněk POKORNÝ Zdeněk POSPÍCHAL Miroslav ŠMIDA Ondřej
Abstract: Specimens made from spring steel 54SiCr6 were nitrided using various parameters of plasma nitriding in order to achieve a layer of variable thickness. The microstructure, phase constitution, hardness and case hardness depth were investigated. [..] Read more
HLINKA Josef VŠB - Technical University of Ostrava, Ostrava, Czech Republic, EU
Co-authors: LASEK Stanislav
Abstract: 1.4301 steel as a basic stainless material used for undemanding applications is studied in this paper. Some of surgical instruments as well as other medical devices are manufactured from this material so its biocompatibility and corrosion resistance must be guaranteed. [..] Read more
DAVID Kusmic Department of Mechanical Engineering, University of Defence in Brno, Brno, Czech Republic, EU
Co-authors: DOAN Thanh Van PILCH Ondrej KRBATA Michal
Abstract: Plasma nitriding is a great thermochemical treatment, widely used in many technical applications as a final operation to improve the mechanical, tribological and corrosion properties of steel. This article deals with wear and corrosion resistance comparison of plasma nitrided and tenifered 42CrMo4 steel, which is widely used in manufacturing of breech mechanism in the armament production. [..] Read more
BROZEK Vlastimil University of Chemistry and Technology Prague, Prague, Czech Republic, EU
Co-authors: MASTNY Libor NOVAK Michal VILEMOVA Monika KUBATIK Tomas Frantisek
Abstract: This paper describes the results of the first phase of the study preparation, structure and properties of coatings modification of black chromium oxide on copper, aluminium, iron and zirconium tubes for solar collectors. The coatings are prepared by plasma spraying of liquid chromate method which is known as Liquid precursor plasma spraying. [..] Read more
SPADŁO Sławomir Kielce University of Technology, Division of Materials Science and Munitions Technology, Kielce, Poland, EU, sspadlo@tu.kielce.pl, piotrm@tu.kielce.pl
Co-authors: MŁYNARCZYK Piotr
Abstract: The article presents the results of research on the influence of the conditions of erosion mechanical machining using a brush electrode on the formation of the surface layer properties. The physical interactions which occur in the process and affect the formation of the surface layer properties have also been described. [..] Read more
POKORNY Zdenek Department of Mechanical Engineering, University of Defence in Brno, Brno, Czech Republic, EU
Co-authors: KADLEC Jaromir STUDENY Zbynek POSPICHAL Miroslav DOBROCKY David
Abstract: The plasma nitriding is a process of thermo-chemical treatment using direct-current glow discharge to improve elemental content of nitrogen to the surface of steel for subsequent diffusion into the bulk of material. An ambient atmosphere was consisted of mixture of nitrogen and hydrogen; temperature should be between 480 and 560 °C. [..] Read more
STUDENY Zbynek Department of Mechanical Engineering, University of Defense in Brno, Brno, Czech Republic, EU, azbynek.studeny@unob.cz, bzdenek.pokorny@unob.cz, cdavid.dobrocky@unob.cz
Co-authors: POKORNY Zdenek DOBROCKY David
Abstract: The paper deals with the steel 41CrAlMo7-10 fatigue characteristics changes following the plasma nitriding process. Two sets of samples were heat-treated identically. [..] Read more
DUDEK Agata Czestochowa University of Technology, Institute for Material Engineering, Faculty of Processing Engineering and Applied Physics, Czestochowa, Poland, EU, dudek@wip.pcz.pl, lisiecka@wip.pcz.pl
Co-authors: LISIECKA Barbara
Abstract: Stainless steel products have been developed extensively, especially those made of duplex stainless steel, which is one of the most modern modifications of this material. They are characterized by a two–phase structure consisting of approximately equal content of ferrite and austenite. [..] Read more
PILCH Ondrej University of Defence, Department of Mechanical Engineering, Brno, Czech Republic, EU, ondrej.pilch@unob.cz
Co-authors: KUSMIC David DOAN Thanh Van LUKAC Tomas
Abstract: This paper deals with explanation of plasma nitriding fundamentals of and specific technical features of this technology. Preparation of samples and performing of plasma nitriding process is described in the experimental part. [..] Read more
MŁYNARCZYK Piotr KielceUniversity of Technology, Division of Materials Science and Munitions Technology, Kielce, Poland, EU, piotrm@tu.kielce.pl, sspadlo@tu.kielce.pl
Co-authors: SPADŁO Sławomir
Abstract: Aluminum alloy is very useful in fabricating lightweight structures. However, the tribological applications of this alloy are limited. [..] Read more
BAŃKOWSKI Damian Kielce University of Technology, Kielce, Poland, EU, dbankowski@tu.kielce.pl
Co-authors: SPADŁO Sławomir
Abstract: The paper presents influence of the vibro-abrasive machining on the operating parameters of the surface and polishing the surface of components made of steel X160CrMoV121 (NC11LV). There were used Rollwasch smoothing media made of nickel-chromium steel SB 3,1 lotto series. [..] Read more
ABAKAY Eray Sakarya University, Engineering Faculty, Metallurgical & Materials Engineering Department, Esentepe Campus, Sakarya, Turkey, eabakay@sakarya.edu.tr, mdurmaz@sakarya.edu.tr, sdmnsen@sakarya.edu.tr, ugursen@sakarya.edu.tr
Co-authors: DURMAZ Mustafa SEN Saduman SEN Ugur
Abstract: In this study, effect of boron addition to Fe-W hardfacing alloys was investigated. The Fe-W and the Fe-W-B based hardfacing alloys were deposited on AISI 1020 steel substrates by a manual tungsten-inert-gas (TIG) hardfacing method. [..] Read more
PECENOVÁ Zuzana University of Chemistry and Technology in Prague, Czech Republic, EU
Co-authors: KOUŘIL Milan PRCHALOVÁ Lucie
Abstract: Currently, the hot topic in restoration and conservation of metals is the application of corrosion inhibitors intended for protection of lead. Our research aims in selection of suitable protection system which would be applicable for conservation of historical lead seals. [..] Read more
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