|
| |
|
|
Modern Materials for Automotive Industry
Vaníček, Jan ; Fojtášek, Jan (referee) ; Hejtmánek, Petr (advisor)
This work is focused on the description of conventional and unconventional materials that are used to build a car. Individual types of materials are sorted according to their application and characterized in terms of properties and real use. The end of each chapter is devoted to possible future trends.
|
|
| |
|
|
Cutting operation of cast iron
Nejedlý, Zdeněk ; Jaroš, Aleš (referee) ; Kalivoda, Milan (advisor)
Bachelor thesis deals with cutting operation of alloys of iron with high level of carbon – cast iron. First part of the thesis deals with properties of these materials. This part is focused on production, chemical composition and form of carbon, which are aspects that influence properties and machinability of cast iron. Differences in individual types are resumed in chapter, which deals with distribution of cast iron. Second part is devoted to machining. Machinability is evaluated for each group of cast iron and individual parts devotes to tool materials, wear of the tool edge and cutting surround.
|
|
|
Spectrometric analytical methods for the analysis of metallic materials and the issue of measuring the carbon content in graphitic cast irons
Osička, Ondřej ; Pernica, Vítězslav (referee) ; Kaňa, Václav (advisor)
Competitive metallurgical production is almost impossible without the knowledge of the chemical composition of manufactured and finished melt, or the produced product. With growing customer demands for product quality and product characteristics, increasing technology speed and increasing product purity, there is growing demand for analyzes of chemical composition. These demands are very often against each other, especially the increasing demands on the speed and accuracy of analyzes. Analytical requirements may not only apply to the test technique, but also to the quality of the sample, which is inseparable from it. What is recently seen as the biggest drawback, the new technology is trying to use as its main priority. This is undoubtedly true of atomic emission spectrometry.
|
|
|
Surface hardening of cast iron by high power diode laser
Bezděk, Pavel ; Daněk, Ladislav (referee) ; Mrňa, Libor (advisor)
The Master’s thesis deals with the technology of surface hardening by laser. High power diode laser is used for this purpose. Surface hardening is performed on cast iron BS 1452-77, at different speeds laser head and laser power. In introduction, the theoretical part deals with possible ways of hardening focusing on the benefits of laser hardening. There are mentioned basic parts of laser, type industrial lasers and their application in industry. The final part is mentions the using of material and methods used to evaluate samples. The practical part describes the using devices and carries out evaluation macrostructure and microstructure and evaluation of hardness depending on the distance from the surface.
|
|
|
Heat treatment of ductile iron
Vávrová, Veronika ; Ostratický, Marek (referee) ; Bořil, Petr (advisor)
The bachelor thesis is focused on heat treatment and influence on the structure and properties of ductile iron. In the first part there is a description of the basic properties of ductile iron. Then the various types of heat treatment are presented. There is an experiment included focused on ferritisation annealing and its influence on the structure.
|
|
|
Production and properties of cast iron with compacted graphite
Zubáková, Alexandra ; Ostratický, Marek (referee) ; Bořil, Petr (advisor)
This bachelor thesis summarizes knowledge of production and properties of compacted graphite iron. The first part describes its structure, chemical composition and the process of formation of compacted graphite. The following section describes methods used for production of compacted graphite iron. This thesis also contains summary of technological, mechanical and physical properties of compacted graphite iron.
|
|
|
Solution technology of two groove guide pulley production.
Pokladník, Robert ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
Technology compiling two groove pulley making for two types of billets. As a billets is used in both cases a cast iron EN-GJL-250. The technological process solves production of both variants from designing the billets to trans-mission to the storeroom. The production is realized through cutting operation by CNC machines. The tools are selected with cutting tip. Finaly both variants are compared from economical perspective.
|
|
|
Change in production of cast iron
Sedláková, Jitka ; Jelínek, Radim (referee) ; Šenberger, Jaroslav (advisor)
The subject of this work is to validate the possibility of managing the cast iron strength through residual Mg content and to determine methodically whether it is possible to exploit this technology in a foundry. It is another subject to determine the economics of the exchange of cupola furnace for electric induction furnace and methodically assess the possibilities of melting in the electric induction furnace.
|
guest ::
