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Analisys of the material for laser cutting
Tonkovič, Miroslav ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
This thesis deals with laser cutting of metal sheets from selected steel producers. The basics of laser technologies, especially in industrial use, are described in the introductory part. There the material requirements are described from the point of view of laser cutting. The comparison of materials from different steel producers is made from different angles in the practical part. The conclusion is dedicated to the evaluation of achieved results.
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Unstability cut of laser beam at dividing limiting gauge thickness
Kadlec, Zdeněk ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
This thesis deals with the possibilities of cutting strong steel metal sheets by means of laser and problems rising from the incision, their technological investigation. The basic philosophy consists on the research of the interaction between laser bunch and material, depending on the position of focal poin and sequential results in spec. heat. It determines the main parametres of the incision (from the total quantities and matematical description) which have the biggest effect on the occurence of wide cut and perhaps even on the quality of products and consequential optimalization of these quantities.
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Návrh interiérového prvku s využitím materiálu Jesmonite
Slyshko, Liliia
The topic of the bachelor's thesis is the expansion of knowledge about the composite material Jesmonite and its use in furniture creation. The work is primarily focused on the material characteristics of the composite and the analysis of its physical and mechanical properties, such as bending characteristics, toughness, hardness, and light fastness. A table lamp was chosen as an interior element, which fulfills both a lighting and a decorative function. The theoretical part contains a basic overview of composite materials and deals with the technical parameters of light sources. Part of the practical part is the own design of the element, which was processed in the form of drawing documentation, visualization of the product and its price calculation. At the end, there is an evaluation of the performed tests. The contribution of the work is a comparison with other composite materials and recommendations for scientific and practical use.
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Analisys of the material for laser cutting
Tonkovič, Miroslav ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
This thesis deals with laser cutting of metal sheets from selected steel producers. The basics of laser technologies, especially in industrial use, are described in the introductory part. There the material requirements are described from the point of view of laser cutting. The comparison of materials from different steel producers is made from different angles in the practical part. The conclusion is dedicated to the evaluation of achieved results.
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Unstability cut of laser beam at dividing limiting gauge thickness
Kadlec, Zdeněk ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
This thesis deals with the possibilities of cutting strong steel metal sheets by means of laser and problems rising from the incision, their technological investigation. The basic philosophy consists on the research of the interaction between laser bunch and material, depending on the position of focal poin and sequential results in spec. heat. It determines the main parametres of the incision (from the total quantities and matematical description) which have the biggest effect on the occurence of wide cut and perhaps even on the quality of products and consequential optimalization of these quantities.
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Technické značení ocelí a litin ve strojírenské praxi
Pluháček, Marek
In the first part of bachleor thesis called "Technical designation of steels and irons in engineering practice" the metallurgical industry, specifically the production of crude iron, is described. Subsequently the production of steel, where the mechanical, physical and chemical characteristics can be modified within widelimits by the chemical composition, heat treatment and shaping, is mentioned. In the second part the author explains, how the mechanical properties of iron are influenced by carbon and alloying elements. The third part deals with the designation of steels and cast irons by czech, european and german standards.
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