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Machining technology with the necessity of manual work
Svoboda, Jakub ; Kupčák, Radim (referee) ; Kalivoda, Milan (advisor)
Manual work is still necessary and often irreplaceable. In most cases, it is combined with machine production. As an example of such work we have chosen the production of tin lead alloy organ pipes, which encompasses several machining processes. All aspects of production were analyzed, including specification of the materials used and the various production processes. A pipe was produced according to these specifications for illustration. Individual chapters presented special manual tools and specific machinery. The difficulty and originality of the given production was outlined. This is professional work requiring manual dexterity, logical thought, attention to detail and an artistic spirit. During production we obtained an image showing a part of the cross-section of the pipe perpendicular to its axis. The image shows the correct shape of the soldered joint and the tangential connection of both sides of the sheet. Several aspects of the pipe were evaluated. The final chapters include feedback from customers and a general assessment of this particular work.
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Turning machines and tools, production of a sample part
Šaroun, Martin ; Jaroš, Aleš (referee) ; Kupčák, Radim (advisor)
This bachelor's thesis provides an overview of turning technology in the research part. It describes the basic terms and terms, deals with the division of lathes and turning knives. The practical part of the work is focused on the technological processing of the specified part, which is the assembly mandrel used for precise gluing. The technological process was developed and in cooperation with the company, the production of its own component took place. In the last phase, the final inspection of products and evaluation took place.
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Machining of a flat shape part on a CNC machine
Moravec, Petr ; Kupčák, Radim (referee) ; Kalivoda, Milan (advisor)
This bachelor's thesis deals with the production of flat-shaped components by CNC milling. A production process was set up within it. Part of the production process assembly is the selection of machinery, including accessories, gauges, and technological processes. Furthermore, an NC program was created, which was optimized in production. At the end of the thesis, the production of the selected part is evaluated.
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3D FDM printer with a replaceable print head
Čuma, Zdeněk ; Kupčák, Radim (referee) ; Zemčík, Oskar (advisor)
The aim of the work is to design and manufacture a mechanism for setting up and clamping the replaceable head of a 3D FDM printer. The first part of the thesis deals with 3D printing in general, the second part describes the FDM method. Part three is devoted to the selection and construction of a suitable 3D printer, the fourth part to the actual design of the head attachment. In the fifth part, a technical and economic evaluation is carried out.
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Characteristic of vehicle’s differential
Málek, Tomáš ; Kupčák, Radim (referee) ; Ohnišťová, Petra (advisor)
This bachelor thesis deals with characteristic of various types of differentials in motor vehicles. It represents their functions, various designs and comparisons. It also includes all wheel drive chapter. The main part is the technology of gear production which involves 3D print. There is model of differential, which was created in Solid Works 2016 specifically for this thesis. It is also printed on 3D printer and the printout is compared with a real model of differential.
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Bonding of composite materials in precise applications
Schubert, Vojtěch ; Zouhar, Jan (referee) ; Kupčák, Radim (advisor)
This work is focused on the bonding of composite materials. Related research dealing with technology of production and bonding of these materials was additionally conducted. Practical part of this thesis was set to find out what the optimal bond line thickness was for the bonding of the composites. Thus, the strength of single-lap joints (SLJ) in series of various bond line thicknesses was therein tested. A model of samples (and design of their production by wet lay-up) for the experiment is also provided in this thesis.
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Bonding of 3D printed PET-G parts
Maxa, Ondřej ; Kupčák, Radim (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis solves the problem of gluing PET-G material, which is used for printing 3D models in 3D printers. The goal is to select and then test the adhesive suitable for bonding the material. The suitability of the recommended adhesives was determined on the basis of standardized tests on experimental blasting equipment. Based on the measurement results, it is suitable to use one-component instant adhesives for gluing PET-G material, the advantage of which is easy handling and quickly achievable handling strength.
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Application of composite materials for sport optics
Kupčák, Radim ; Slaný, Martin (referee) ; Zouhar, Jan (advisor)
In Its first half this master's thesis describes composite materials with carbon fiber reinforced plastics being the main focus point. An overview of production technologies follows. The major objective of the second part of this master's thesis is to design and manufacture a simplified model of an optical device using prepregs.
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Modification of the crank store on a bicycle
Kupčák, Radim ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
In its first half this thesis describes most common materials used in the bicycle industry as well as various types and standards of bottom brackets and mentions their pros and cons. Starting with the oldest cotter pin type all the way to the most modern press fit bottom brackets. The major objective of the second part of this thesis is to design a crankset based on the research in the first half. One of the most important aspects of the design was to choose a suitable type of bottom bracket for non-competetive riding. Structural analysis using finite element method was done and the design was altered accordingly. In the end the process of manufacture was described.
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