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Finishing tool manufacturing
Rušín, Filip ; Kouřil, Karel (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with the production of a finishing instrument for roughing three different diameters. The first chapter introduces the selection of the required material, the semi-finished product design and the heat treatment of the product. The following is determination of the production conditions and compilation of the technological process and drawing. At the end of this work there is an evaluation of the technical-economic aspect and a discussion about possible upcoming situations.
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Proposal for Lean Manufacturing Using Kaizen Products to Ensure Quality
Alánová, Hana ; Brablík, Jakub (referee) ; Jurová, Marie (advisor)
This diploma thesis is based upon a study of processes in a subdivision of fischer systems, a company in the automotive industry. These processes are studied with reference to lean manufacturing and Kaizen products. The first part of this thesis is a general introduction to the company. It is followed by a description of the subdivision in question, and a discussion of various theoretical approaches. An analysis of the current state of manufacturing and processes is also made. Finally, a proposal is made towards solving imperfections uncovered in the analysis stage, and getting the company closer to lean manufacturing.
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Optimization and characterization of dimethacrylate-based resin
Baradzina, Lizaveta ; Petruš, Josef (referee) ; Poláček, Petr (advisor)
This diploma thesis was focused on the optimization and characterization of resins based on dimethacrylate monomers. The polymerization process was also monitored depending on the type and molar ratio of monomers used, on the content of barium glass filler and the presence of glass fibers. Changes in the viscoelastic properties of materials during polymerization were also investigated. The following methods were used to characterize the prepared dimethacrylate resins and composite materials based on them: viscosimetry, differential scanning photocalorimetry (DPC), photoreology, dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA). The dynamic viscosity of the prepared dimethacrylate matrices was determined by viscometry. Based on the results of DPC analysis of the tested resins, the dependences of heat flow on time, conversion on time and polymerization rate on conversion were created. With photoreology, the course of curing, the onset of the gelation point and changes in the viscoelastic properties of the systems were monitored. The viscoelastic properties of the cured composite materials were then determined by DMA in the three-point arrangement. TGA was performed to accurately determine the composition of the tested samples
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List of Tool Materials in Forming Operations
Horník, Tomáš ; Podaný, Kamil (referee) ; Šlais, Miroslav (advisor)
The bachelor’s thesis elaborated within the scope of full-time study of specialization B-STI Mechanical Engineering is dealing with forming technologies and choice of tool steels for the production of forming tools. In the initial part of the work we are engaged in forming theoretical background, such as forming resists and shaping rules. Another section is devoted to tool steels and their most frequent heat treatment. In the following section of search is a basic description of the selected forming operations, including the use of machines and tools and highlight of the essential elements of the technology. Requirements for material of the tool are also listed there. The goal of this work is creating steel material sheet for cutting and extrusion tools and dies. These sheets are located in the attachment of this work.
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Graphics Intro 64kB Using Ray Tracing
Luňák, Miroslav ; Herout, Adam (referee) ; Jošth, Radovan (advisor)
This thesis is concerning the description of creation of graphic intro 64kB using ray tracing. The main focus is the problems and principles connected with the topic of the thesis. Further on, the thesis describes the actual realization of the application and the achieved results. The conclusion covers the evaluation of thesis and possible ways for further improvement of the project.
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Analysis of manufacturing of component by elastoforming technology
Lorenc, Tomáš ; Řiháček, Jan (referee) ; Peterková, Eva (advisor)
In this thesis, processed within the master's degree is the analysis and proposals for modification of production stagnation ribs aircraft L-410. The part is made of aluminum alloy D16. More specifically, it is a 0.8 mm thickness sheet, which after the milling of the blank molded in the basic non-rigid tool by Guerin. After analyzing the entire manufacturing process and the determination of the critical points due to a series of tests carried out were evaluated possible variants production innovation. Proposed changes and their optimization can reduce the labor intensity deleting some time being necessary preparatory and finishing operations manual. It also increases the repeatability and streamline current production panels.
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Risk analysis and management of technological stages of construction
Sáček, Petr ; Bednářová, Bronislava (referee) ; Vymazal, Tomáš (advisor)
This thesis deals with the analysis and evaluation of quality, environmental, and security risks, hazards and application of appropriate methodology to a particular construction project. For an application is selected the key construction technology - walling. Diploma thesis establishes a framework for risk management on the basis of established integrated management system (IMS) defines the objectives and mechanisms in controlling adherence to standards, evaluation of business risks, defining risk management strategies, the draft risk management procedures, monitoring their functioning, assessing their performance and any improvement and support the process of supplying the required information.
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Sheet Metal Stretch Forming Process
Lorenc, Tomáš ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
In this work, elaborated in the bachelor study, there is a general overview of the sheet metal stretch forming methods. The stretch forming processes shift the boundary properties of the materials and merge process of drawing and bending into one operation. That's why it's possible to do products from materials, which can not be possible to form by other methods in the same quality Positives of this technology are the minimization of cushioning, the production of complex, precise surface shapes, etc. The contribution of this work is a systematic summary of the principles that should be used as a tool for teaching or as a basis for the wider development of this method.
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Laser micromachining
Láznička, Pavel ; Daněk, Ladislav (referee) ; Mrňa, Libor (advisor)
This thesis deals with lasers, their general theory and application. Then a theoretical part describes laser micromachining and engraving. Experimental part of thesis deals with several experiments performed by powered fibre laser which is not primarily intended for the field of micromachining. Experiments were mainly evaluated by several types of microscopes where the amount of removed material was appraised. By particular experiments removed material was in accordance with used working parameters of laser and a significant role plays machining material. It emerges from the experiments that for the field of laser micromachining and engraving shorter pulses are more suitable (minimal pulse duration was 1 ms in experiment) and it is connected even with a way of removing material. Applied powered laser can be used for micromachining in specific fields of production.
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