National Repository of Grey Literature 27 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
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.
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.
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.
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.
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.
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.
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.
Influence of surface roughness on optical properties of machined materials
Ashqar, Ghaith ; Jaroš, Aleš (referee) ; Kupčák, Radim (advisor)
První, teoretická, část této bakalářské práce se věnuje problematikám souvisejícím s výrobou mechanických položek pro optické přístroje. Poskytuje úvod k parazitnímu světlu a přehled způsobů jeho eliminace. Následuje obecná část zabývající se soustružení a sekce věnovaná měření drsnosti povrchu. V praktické části jsou tyto poznatky zúročeny v podobě návrhu a následné výroby prototypového vzorku který bude sloužit k vyhodnocení vlivu drsnosti povrchu na množství parazitního světla v optickém přístroji. Drsnost povrchu jednotlivých vzorků byla změřena a porovnána s teoretickou hodnotou získanou výpočtem. Prototyp byl vyvinut v úzké spolupráci s R&D oddělením přerovské firmy Meopta – optika, s.r.o. Na základě budoucích zkoušek a měření bude vyhodnoceno, zda je autorem navrhovaná inovace aplikovatelná v oblasti přesné mechaniky a optiky.
Production of a replacement part of the i20 car handle with the FDM printer
Borovský, Adrián ; Kupčák, Radim (referee) ; Zemčík, Oskar (advisor)
The bachelor's thesis deals with the design and manufacture of a functional part of the Hyundai i20 car, specifically the door handles that have been damaged by wear. The aim is to produce a technically and economically suitable variant of the handle, that will meet the technical requirements for operation and will be able to compete with the original.
Precise bonding of composite materials
Tellinger, Adam ; Gregor, Lukáš (referee) ; Kupčák, Radim (advisor)
This bachelor's thesis deals with the issue of bonding composite materials. The first part of the bachelor's thesis is focused on research into the production of composite materials and gluing technologies. The content of the practical part is the design of test specimens and a preparation for their bonding with subsequent production. Furthermore, verification of compliance with the required accuracy of bonded joints when using different adhesives using 3D measurements.

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