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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 86
Váchal, Václav
Technologie pájení heterogenních pájených spojů.

The topic of this bachelor thesis is the design of the hard spine of the heterogeneous joint (cemented carbide - steel). In the theoretical part we find information about brazing and technology of electric arc welding in inert gas protective atmospheres. The aim of this w...

Šotová, Petra
Metodika přípravy příčných řezů z tenkých vrstev a zkoumání jejich mikrostruktury v transmisním elektronovém mikroskopu

This bachelor thesis is focused on a selected method of cross-section thin films preparation and its analysis of AZO structure in transmission electron microscope (TEM). It includes advices on how to speed up the preparation process. The theoretical description of crystallographic substances...

Klaisnerová, Jitka
Moderní techniky NDT.

This thesis dissert on design of bodywork of a two-axles middle-class bus in three variants, computer simulation of circumfluence around the bus-body and calculating of chosen drive-parameters. Aerodynamic characteristics and the coefficient of air resistance were obtained by software Fluent.

Veselý, Vilém
Strukturní analýza kovaných rychlořezných nástrojových ocelí se zřetelem na rozložení a velikost karbidů.

The aim of the thesis is to analyze microstructure of forged high - speed tool steel with high deformation degree. This semi-finished product will by used for the production of special machine tools. It was measured several characteristics of microstructure to determinate the optimal nu...

Doležalová, Kamila
Metalografické hodnocení laserových návarů na bázi kompozitních materiálů.

This bachelor thesis is composed of two parts. One of them is theoretical and the other experimental. The theoretical part consists of a description of laser cladding technology and description of materials with high corrosion and biodegradability resistance. The experimental part focuses&#x...

Zikmund, Tomáš
Nové trendy v povrchových úpravách svarových spojů.

The aim of the bachelor´s thesis was to summarize the existing knowledge of corrosion and welded joints. The theoretical part describes the problems associated with corrosion, its forms and corrosion prevention. The second part was about welds, their microstructure and welding procedures...

Peković, Michal
Vývoj mikrostruktury a mechanických vlastností AHS ocelí v závislosti na chemickém složení a parametrech tepelného zpracování

The bachelor thesis deals with possibilities of isothermal heat treatment of AHS steels. The experimental program was aimed at creating bainitic structures useing a thermo-mechanical simulator. The experiment was performed on two low-alloy, medium-carbon steels with the same chemical composition, ...

Forejtová, Jana
Popis fyzikálních stavů a viskoelastických vlastností inženýrských termoplastů pomocí termických analýz

This thesis deals with structure and characteristics of new composite materials. The experimental part was focused on identifying limit temperatures and mechanical strength of new materials, which are based on waste cellulose and thermoplastic starch. These materials were compared to commonly...

Dlouhá, Žaneta
Návrh a ověření tvaru kovadla pro kování nerovnoměrného průřezu

This bachelor thesis is focused on forming tool steels. The thesis contains technological procedures of forging special tool used in ultrasonic welding. Another part of the work is drawing documentation of the used equipment.

Cempírek, Štěpán
Svařování metodou TIG

This thesis deals with MIG / MAG and TIG welding, with the greatest emphasis on TIG. The aim of this work is to define the basic facts that play a role in TIG welding, as well as a qualitative comparison of two welding sources of various manufacturers. Thei...

Votava, Filip
Vlastnosti práškových směsí, které jsou používány pro slinování, navařování a rapid prototyping

This thesis is focused on evaluation of basic and technological properties of metal powders, especially tungsten carbide powders (WC-Co) and metallic steel powder, which served as a standard because it is developed for use in the sphere of additive technologies. The aim...

Lukášek, Ondřej
Orbitální svařování trubek z oceli 316L

Bachelors thesis deals with optimalization of orbital welding parameters for AISI 316L steel tubes. In the theoretical part, it presents basic terms and methods of orbital welding and approximates the welded material. In the experimental part the results from metallographic evaluation and&#x...

Stach, Ondřej
Měření rychlosti šíření ultrazvuku ve vybraných materiálech v návaznosti na ultrazvukové svařování

The aim of the bachelor thesis is to measure the velocity of ultrasound in commercial sonotrode and steel samples. It is possible to determine the modulus of elasticity with the knowledge of ultrasound velocity and density of material. The simulation of sonotrode can be done&#...

Hervert, Tomáš
Syntéza částic nanodiamantu pomocí ultrasonifikace

The purpose of this work is to verify the preparation possibility of negatively charged diamond nanoparticles by suitable heat treatment and sonication method. The experiment consists of application of heat treatment of powder nanoparticles and preparation of their solutions in distilled wat...

Skopec, Martin
Litina s lupínkovým grafitem se zvýšenou tvrdostí

The aim of this bachelor thesis is to analyze the hardeness distribution cross all cast, tensile strength, microstrukture and chemical strukture of grey cast iron. Next point is to propose chemical strukture, which is able to not use heat treatment.

Trčka, Jan
Měření ultrazvukových parametrů kované nástrojové oceli

This bachelor thesis is focused on problems in the technology wellding by ultrasonic. The used tools are faulty and buying new tools is very expensive. There are compare speeds of ultrasonic present materiál with the forged tool steel, which could compesate presents materials.

Duliškovič, Josef
Využití sorpčních schopností jílů společnosti LB Minerals s. r. o.

The bachelor thesis is focused on modification of clays (GEP, GEM, GEC, B75, Sabenil, Kaolin GII) with humic substances. Determination of the sorption capabilities of these clays follows. Ssorption abilities is discussed afterwards. The experiment showed the possibilities of clay sorption wi...

Volkmannová, Julie
Možnosti využití in-situ deformačního stolku.

This bachelor thesis is focused on solving the in-situ deformation table problem. This problem deals with both metallographic preparation and the results of various analyzes. These analyzes include the study of the propagation and initiation of cracks, the study of residual austenitic s...

Stehlík, Adam
Technologie svařování tlustostěnných svarů s ohledem na detekci vad

The aim of this work is to examine the technology of thick-walled weldments. We mainly focus on the comparisement between thick-walled welds and common thickness welds. The theoretic part of this work deals with suitability of application of different welding techniques, flaw occurence&...

Šimon, Petr
Vlastnosti ODS ocelí určené pro reaktory IV. generace

The theoretical part of the bachelor deals with the description, the use, production and welding technology ODS steel. The practical part includes measuring grain size, measuring microhardness by Vickers, tensile tests for high temperature, chemical composition and method of EBSD ODS steels.

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 86