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Actual trends in manufacture of permanent patterns
Benda, Tomáš ; Mikulka, Vít (referee) ; Horáček, Milan (advisor)
The aim of this bachelor thesis is to create an overview of different methods for making permanent models. According to the type of materials the models are divided into the wooden, the metallic, the plastic and the models made from the resin. Further, certain methods Rapid prototyping are described here. The thesis is completed with visual documentation.
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Investment casting – progressive foundry technology
Blažík, Petr ; Macků, Martin (referee) ; Mikulka, Vít (advisor)
The goal of this bachelor thesis is to bring special retrieval about possibilities of investment casting technology used for casting dimensional accurate products from aluminum alloys together with lost-wax process. The thesis deals with problems of the dimensional accuracy and the surface quality of casts produced by this technology. Further a thesis is focused on possibilities of increasing mechanical properties by the modification of casting procedure. At the end a thesis describes special technologies used for casting dimensional accurate aluminum alloys products used in aerospace industry, their principle and reachable mechanical properties.
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Use of aluminium and its alloys in foundry industry
Laštovica, Petr ; Mikulka, Vít (referee) ; Staňková, Markéta (advisor)
This bachelor work is focused on description of characteristics and uses of aluminium and its alloys in foundry industry. The author briefly focuses with technical pure aluminium, and then describes the characteristics, distribution and technology of aluminium alloys. After the basic characteristics of all major aluminium casting alloys, the author mentions the use of aluminium alloys in a variety of industrial sectors.
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Non-ferrous alloys and their use in practice
Měřinský, Ivo ; Mikulka, Vít (referee) ; Staňková, Markéta (advisor)
This work introduces us with non-ferrous metal alloys and their applications in industry. The area is dedicated to the most widespread copper and aluminium alloys, less used alloys, such as magnesium, titanium, gold and silver alloys. For each alloy is given its manufacturing technology, distribution according to different perspectives and their properties. At the end of each chapter you can meet with examples of using alloys in practice.
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Manufacture of Artistic Castings
Janošťák, Jan ; Staňková, Markéta (referee) ; Mikulka, Vít (advisor)
This bachelor’s thesis is focused on types of casting methods, which are or were used for the production of art objects. Chronological cross-section through history of art casting is made at first, which is followed by an analysis of the most common methods and techniques leading to the production of art castings. The following practical part of the bachelor’s thesis concerns itself with the production of a simple art casting. The lost-wax process was used for its fabrication.
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Investment casting - defects list
Šmatelka, Jakub ; Staňková, Markéta (referee) ; Mikulka, Vít (advisor)
This bachelor thesis deals with defects which can occurred during investment casting process. In the first part, there is briefly described investment casting process in Alucast s.r.o. company. List of all defects occurring during manufacture is described in the second part. This catalog includes majority of defects from the cast proposal to finishing operations. There are also described causes, consequences and corrective actions.
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Application of rapid prototyping technology in the investment casting technology
Čejka, Libor ; Mikulka, Vít (referee) ; Kosour, Vojtěch (advisor)
To accelerate the production of prototype castings, it is necessary to shorten the time required for the production of investment casting, allowing just the Rapid Prototyping technology. This technology is being developed for several decades, but the application of the method of lost wax model is completely normal. Task of the thesis is to develop a literature search possibilities of mapping technology in Rapid Prototyping technology foundry investment casting wax model.
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Investment casting waxes and measurements of their properties with regard to simulation software
Bochníček, Štěpán ; Mikulka, Vít (referee) ; Kosour, Vojtěch (advisor)
Today, the use of simulations is increasing in order to reduce cost and complexity of production and also to prevent product defects. For this purpose, we use simulation programs, such as ProCAST. This program is designed for simulation of casting parts. In my bachelor thesis I focused on the methods of casting lost wax, where the model is made of wax mixture. In each simulation we have to obtain and specify the properties of the material to casting. I described these properties and methods of measurement in this bachelor thesis.
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