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Reprap, 3D FDM printer
Minařík, Miroslav ; Madaj, Martin (referee) ; Zemčík, Oskar (advisor)
The essence of this bachelor’s thesis is describe RepRap, 3D FDM printer. First, the work is focused on presentation some posibilities of rapid prototyping and explain basic mechanics of FDM technology. In the second part, several types of RepRap printers are described and use 3D printer in practice.
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CAD aplications in rapid prototyping
Pešek, Ondřej ; Madaj, Martin (referee) ; Zemčík, Oskar (advisor)
This thesis describes and compares the characteristics of CAD applications with respect to the use of rapid prototyping technology. The first part introduces the basic principles and methods of 3D printing technology and outlines current developments in this area. The second section describes the comparison CAD applications and their capabilities. The last section is devoted to key features of CAD systems. It is a comparison of available options, evaluation and recommendations.
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FEM for fast machining simulation
Šeda, Pavel ; Madaj, Martin (referee) ; Zouhar, Jan (advisor)
The work will be focused on FEM for fast machining simulation. Introduction described the theoretical basis of FEM. The various methods (implicit, explicit) and the individual programs (ANSYS Ls-Dyna, Abaqus, Deform, AdvantEdge). At the end of the model calculation will be made for orthogonal cutting, which will be created in Ansys Worbench, counted in a computer program LS-DYNA and the results displayed in the LS-PrePost.
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Tools for CNC milling centres
Konečný, Petr ; Madaj, Martin (referee) ; Humár, Anton (advisor)
This thesis is focused on milling tools for CNC milling centers. The first chapter of this thesis deals with a short theory of milling and the characteristics of CNC milling center. In next chapter are divided and described milling tools in terms of use and construction. This chapter also describes tool materials, clamping, coating and marking of these tools. The practical part is devoted to production assortment of mills from major producers. It is an analysis, description and evaluation of assortments of these producers. For this purpose were selected companies Sandvik Coromant and Pramet Tools.
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FEM for machining simulation
Vojtek, Aleš ; Madaj, Martin (referee) ; Zouhar, Jan (advisor)
The introduction to turning basics, chip separation process, cutting force generation and description of the finite element method. With this knowledge, a cutting simula-tion of AISI 1045 steel was done for 3 different rake angles, which was simplified by using an orthogonal machining model. The next simulation was cutting of AISI 6150 steel with the use of a 3D model of the grooving insert. The results of these simulations were then compared to the experimental results, and feasibility of finite element method was determined together with future recommendations for acquiring more pre-cise results.
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Solution CNC technology of part whit a CNC-unit Sinumerik
Forbelský, Jiří ; Madaj, Martin (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis elaborates complete manufacturing process of a shape shaft. Technological procedure is designed in two variants. The practice variant employs tools, material and CNC lathe available at university workshop. The designed technological procedure has been verified by manufacturing the shaft. Series production utilizes modern tools and an industrial lathe. Both the described variants are compared and evaluated.
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Drilling technology
Vejtasa, Vladimír ; Madaj, Martin (referee) ; Kalivoda, Milan (advisor)
The first part of the bachelor's thesis deals with the problems of drilling, roughing out, reaming and recessing including the used tools. The second part is focused on the presentation of the range of goods of the selected tool companies. The third part deals with the problems of the CNC machines and especially with their programming. In the end of this part there is a demonstration of a NC program which was created for the chosen product.
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