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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 80
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...

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...

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...

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...

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...

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&#...

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.

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...

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...

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&...

Vítovec, Vilém
Hodnocení kvality ozubených kol vhodnými metodami NDT

Bachelor thesis is focused on non-destructive testing of mate-rials with respect to the use of gears and components used for gearing. In theoretical part are captured non-destructive tests for the evaluation of gears and other machine components. In addition there are also mentioned...

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.

Tochylin, Mykhailo
Příprava vysoce prokovaného polotovaru pro výrobu obráběcího nástroje

The aim of the thesis is to verify the technological process of forging the high-speed tool steel, which had been implemented with the high deformation degree by repeating of the upseting and drawing out forging operations to achieve a very fine homogeneous structure. This way...

Michálek, Pavel
Návrh materiálu pro oplachovou vanu chromovací linky

The goal of this thesis is to select suitable material for rinsing bath in chrome plating line. The line is in Buzuluk a.s. company and is designed for piston ring plating. Chrome plating process, various types of rinsing baths and corrosion principles are described...

Hajšman, Jan
Mikrostruktura a vlastnosti kompozitních materiálů na polymero-organické bázi

This bachelor thesis is focused on characterisation and quantitative evaluation of polymer-organic composites microstructure. The main objective is to develop a method of metallographic examination of polymer-organic composites.

Melzer, Daniel
Vyhodnocování lomového chování ocelí na vzorcích malých rozměrů

This thesis is focused on mechanical testing of metallic materials using miniaturized specimens. There are compared results obtained from tensile tests, impact tests and fracture toughness tests carried out on the standard and miniaturized specimens. Fracture toughness tests were performed on...

Němec, Josef
Optimalizace naprašovaných ZnO:Al vrstev pro flexibilní nanogenerátor napětí

The main aim of this work is to optimize the deposition of ZnO:Al layer so that it can replace the ITO layer in the flexible nanogenerator. There is described a flexible nanogenerator based on ZnO nanostructures in the introduction. In the next part are described the ...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 80