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Weldability of steels for the manufacture of bicycle frames
Grim, Robert ; Richter, Tomáš (referee) ; Vaněk, Mojmír (advisor)
This thesis is focused on steel materials used in bicycle frame manufacturing. The alloys are analysed based on their mechanical properties as well as their weldability. Steel materials are divided into three groups corresponding to the foremost frame manufacturers. Alloys with trade names are paired with equivalent normalized materials selected according to their chemical composition. The weldability of individual steels is addressed in several chapters sorted by materials’ mechanical properties and structure. The work further explains why TIG welding of frames is preferred and what the method’s main advantages are.
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Tube bending
Richter, Tomáš ; Peterková, Eva (referee) ; Žák, Ladislav (advisor)
The bachelor thesis deals with the theoretical analysis technologies of bending circular cross-sections. In the first part are said formulas for the calculation of the processes occurring in the blank material and formulas to refine the viability of the operation (or for the assessment of defects). The second part describes the current technologies used for bending pipes of circular (and other) cross-sections.
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Electron beam welding technology
Skalka, Jan ; Vaněk, Mojmír (referee) ; Richter, Tomáš (advisor)
The bachelor thesis is devoted to analysis of electron beam welding technology. It is unconventional method of welding characterized by high quality weld and narrow heat-affected zone of welded parts. This technology, due to its development and qualities, has found its application in many industries, primarily in aviation and astronautics. The vacuum is limiting feature of this method and it is necessary for electron beam welding. However, even in this area, the development of new technologies have not stopped and generates concrete solutions to those problems. The thesis is also focused on elektron beam welding of rotary parts in the piece and serial production.
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Welding of bicycle frame from titanium alloy
Richter, Tomáš ; Kandus, Bohumil (referee) ; Kubíček, Jaroslav (advisor)
This bachelor’s thesis is focused to titanium bicycle frame welding. The first part is about bycicle itself. It containes kinds of bikes, materials used for frames and influency of some proportions to handling properties. Next chapter is about titanium. There are properties of titanium and titanium alloys used for bike frames in this chapter. After that there is a chapter about TIG welding, which is mostly used for titanium. This method is mentioned both generally and concretely for titanium. Final part is about technology of bike frame building.
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Environment parameters monitoring
Richter, Tomáš ; Ing. Jan Janečka, Ph.D. ABB s.r.o. Brno (referee) ; Vdoleček, František (advisor)
This bachelor's thesis analyzes available options, methods and resources of monitoring environmental parameters. It focuses on environmental parameters, which can affect accuracy of measurement results. Practical work deals with design and implementation of model, which allows monitor environmental parameters at laboratory A4/603. Implemented model accesses actual and historical values of environmental parameters through web applications. The measured values from laboratory can be used for correction of technical measurement results done in this room.
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Welding of turbine rotor materials.
Richter, Tomáš ; Slováček, Marek (referee) ; Daněk, Ladislav (advisor)
Master’s thesis titled Welding of turbine rotor materials discusses evaluation of welding parameters by numerical simulation in software SYSWELD and Visual - WELD. Base material 23 CrMoNiWV 8-8 is welded by submerged arc welding technology. Used flux is F 26G and electrode is flux-cored wire TOPCORE 838 B. Material structures, hardness, values of residual stresses and distortion of weldment for this process are calculated by using the numerical analysis.
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Destructive methods of control of welding joints
Kopecký, Lukáš ; Richter, Tomáš (referee) ; Vaněk, Mojmír (advisor)
Bachelor´s thesis, the form of a literature review, discusses destructive inspection of welded joints. Using literary study of the issue, there are presented actual methods of destructive testing. The main aim of research is focused on describing the basic principles of the various destructive tests, their procedures, preparation of test samples and subsequent evaluation and comparison tests.
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Robot path planning by means of algorithms AO*
Richter, Tomáš ; Krček, Petr (referee) ; Dvořák, Jiří (advisor)
This diploma´s thesis analyzes methods for robot path planning by means of algorithms AO*. The practical part focuses on the implementation of selected methods AO*, which are designed for planning under uncertainty environment. There was created the simulation program in this work. Simulation program enables testing the methods, that were implemented.
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