National Repository of Grey Literature 22 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Possibilities of using modern methods in manufacturing of prototype castings focused to combination of RP and investment casting
Sysel, Karel ; Kosour, Vojtěch (referee) ; Horáček, Milan (advisor)
The objective of this thesis is to close the possibilities of modern foundry industry and demonstrate that nowadays it isn’t only about production of inaccurate casts, which were products of a lengthy industrial processes and testing of the new casting moulds. So that the thesis is concentrate on possibilities of the Rapid Prototyping Technologies and investment casting, because especially combination of them gets a new possibilities and direction to the modern foundry industry.
Possibilities of using modern methods in manufacturing of prototype castings
Němec, Jiří ; Kosour, Vojtěch (referee) ; Horáček, Milan (advisor)
An overview of the most suitable RP technologies for making rapid casting prototypes is the target of this thesis.
Use of Numerical Simulation to Optimize Wax Patterns Production
Kosour, Vojtěch ; Elbel, Tomáš (referee) ; Nová, Iva (referee) ; Horáček, Milan (advisor)
Production of wax pattern model by injection machine is a one of the key phases of Investment casting process. The thesis deals with the development of numerical simulation wax blend injection in to metal die. The possibilities of selection simulation software – ProCast and Cadmould are described in the relation to numerical predictions of wax injection. Creating of material database of selected wax blends is described. The prototype simulations of die filling are made. The special testing die are designed a used for created simulations. The measurements of initial conditions are mentioned.
Optimation of wax pattern manufacture - wax mixtures and its testing
Koběrský, František ; Kosour, Vojtěch (referee) ; Horáček, Milan (advisor)
The bachelor’s thesis deals with a general description and distribution of waxes and wax mixtures for investment casting in the first part. The second part is devoted to descriptions of various mechanical and physical properties of waxes and their testing.
Application of rapid prototyping in foundry industry
Krejčí, Zbyněk ; Macků, Martin (referee) ; Kosour, Vojtěch (advisor)
These bachelor thesis deals with the practical aplication of rapid prototyping at foundry industry. In the first part of the thesis is given list of the most important methods of rapid prototyping, those principles, advantages and disadvantages. And the second part is dealing with aplication of these methods at foundry industry, and its evaluation.
Manufacture of a prototype component by rapid prototyping method
Křupka, Marek ; Stachovec, Ivo (referee) ; Kosour, Vojtěch (advisor)
This thesis describes the production of a prototype component of the bicycle crank with FDM Rapid Prototyping method. Initially, production methods of this component, using different ways of Rapid Prototyping are summarized. The main part of the thesis focuses on the production process from the initial design to the final wax model, which can be used to manufacture metal components. The conclusion compares the component production using standard technology with the one using Rapid Prototyping.
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.
RP technology using FDM method and investment casting technology
Kosour, Vojtěch ; Krutiš, Vladimír (referee) ; Horáček, Milan (advisor)
An overview of the development of the Investment Casting market and Rapid Prototyping equipment is given in the introductory part of this diploma thesis. Basic methods of rapid prototyping and the FDM method are futher described in detail. The FDM method is consequently used in the practical part of this work for the preparation of the silicon mould. The largest part deals with the issue of the simulation of pouring process of wax into the silicon mould. A characteristics of the casting wax is made; the parametres, which are inserted into the simulation software ProCAST and the possibilities of their measurement are described. The process of the simulation of the mould filling and its validation with the real filling process are described in detail.
Marketing Strategy to Support New Customer Acquisition in Foundry Industry
Kosour, Vojtěch ; Drápela, Miloslav (referee) ; Chlebovský, Vít (advisor)
The diploma thesis focuses on the issue of an introduction of a concrete company on the new market in the field of industrial markets (B2B). The theoretical part of the thesis analyses the issue of marketing plan creation and defines the relations, the process of creation and applicable methods. In the analytical part of the thesis the theoretical results are applied on the company MCAE Systems Ltd, which wants to offer their product on the casting market. The proposal part of the thesis proposes a possible process of penetration to the casting market.
Optimation of wax pattern manufacture - wax patterns defects and their remedies
Pokorný, Michal ; Kosour, Vojtěch (referee) ; Horáček, Milan (advisor)
The basic condition for making a quality casting by the lost wax process is to manufacture the perfect wax pattern first. This means to chose the suitable wax composition and equipment taking into account the final casting shape, complexity and size.

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