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Local IR spectra measurement system
Pospíchal, David ; Trčka, Tomáš (referee) ; Škarvada, Pavel (advisor)
The diploma thesis deals with the design of a system for measuring infrared spectra from local areas of samples. The theoretical part describes the electromagnetic waves and related phenomena. Furthermore, the semiconductor junction and solar cells are discussed. The following is a basic description of line spectrometers. In the practical part, a suitable arrangement of the whole system, collimator design, and especially the core of the whole work, ie control software and signal processing, are proposed.
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Design and manufacture of bending fixture
Ševčík, Jan ; Trčka, Tomáš (referee) ; Zemčík, Oskar (advisor)
The work deals with the design and manufacture of bending fixture. It contains a comparsion with current bending fixtures on the market and a justification for the production of a given type. Then the work contains a proposal of the constuction of individual parts with the selection and description of technologies of their production and the process of their production. The work also contains complete drawing ducumentation of all parts of the bending fixture. The conclusion of the work contains the possibilities of design modifications and economic and technological evaluation.
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Removal of burrs during production from flat semi-finished product
Máslo, Jiří ; Trčka, Tomáš (referee) ; Kalivoda, Milan (advisor)
This bachelor’s thesis explains the definition of burr formation in individual methods of machining, there are ale described mothods of deburring, both conventional and many unconvetional methods. A large part of the bachelor’s thesis is focused on the removal of burrs from drilled holes, there are a lot of special deburring tools on offer. Experiment is performed in the last part, in which several manual methods for deburring are tested on simple components.
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Renovation of railway wheelsets
Halásek, Jan ; Trčka, Tomáš (referee) ; Kalivoda, Milan (advisor)
This bachelor´s thesis deals with an analysis and a description of railway wheelsets´ renovation. The theme offers a complete view of a technology, conditions and renovations´ posibilities. In the theoretical part, there is mentioned a basic terminology with an overview of all defects and also their removing in the workroom practice. Practical part is illustrated with the technological process of a repaired vehical in the company DPOV, a. s. PSO Nymburk. In the end, there is a summary of all potencial possibilities leading towards improving the functioning of the company with the emphasis on renovation of a components, which nowadays must be eliminated out of operation.
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Streamline production of sewing machine parts
Švec, Michal ; Trčka, Tomáš (referee) ; Kalivoda, Milan (advisor)
The diploma thesis deals with the proposal of more effective production process of the feeder holder component in the company MINERVA BOSKOVICE, a.s. The first part of diploma thesis dedicated to the technologies which are used in the production of components. The second part deals with the analysis of the component and its current production process. The third part contains a proposal for a new production process, which contains a description of the machines used for production, a new jig, selected tools, mechanical calculations and technological method. The last part evaluates the current and newly proposed variant of production with their comparison.
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Force loading of milling tools during the machining process
Švec, Michal ; Trčka, Tomáš (referee) ; Polzer, Aleš (advisor)
This thesis compares the force load of two kinds of cutting tool inserts while milling. The thesis is devided into two main parts – research and experiment. The research part is focused on the theory of the force load measuring, cutting tools and cutting tool inserts and their coating. 14 grooves were made with each cutting insert while the force load was measured. Constant cutting conditions were applied. The experiment was repeated four times for each kind of cutting insert. The aim of the thesis is to determine if both kinds of inserts mill with the same force load. The results reveal that one kind of cutting tool inserts mill with the force load higher up to 85 %.
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Force loading of cutting tools during the machining process
Vančura, Tomáš ; Trčka, Tomáš (referee) ; Polzer, Aleš (advisor)
The theoretical part of the diploma thesis summarizes a knowledge of the force loading of the cutting tools and state of the art in the cutting force measurement. In the experimental part, work deals with the development of the software for a force records analysis. The main objective of the software is to automatise the processing and analysis of the measured force records. The functionality of the newly created software was verified by evaluating the circle-segment end mills experiments performed at the Institute of Manufacturing Technology of the Faculty of Mechanical Engineering, BUT.
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Analysis of causes of inaccurate production
Foral, Jakub ; Trčka, Tomáš (referee) ; Kalivoda, Milan (advisor)
The topic of the Master‘s thesis focuses on NOK pieces which are produced during the production of components. NOK pieces and their rework significantly increase the company‘s costs. In the individual chapters there is an analysis of the company and the definition of a critical point. The FPY indicator was used for the analysis of the company, from which the component was identified. Three improvement concepts have been created for this component. These concepts may reduce the rate of NOK products in the company. The conclusion of the Master‘s thesis presents the evaluation and implementation of the selected change.
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Implementation of SolidCAM software in an engineering company
Olejníček, Petr ; Trčka, Tomáš (referee) ; Polzer, Aleš (advisor)
This Masters thesis examines the production of a revolver frame and the implementation of a new CAM system for the manufacturing process. This thesis contain four parts. The first part is focused on the current manufacturing process. The second part of the thesis consists of a new proposal to use progressive rotary tools and elements of automation for inspection by the Equator Gauging System. The third part proposes a new manufacturing strategy for the revolver frame. At the end of the thesis, the production times of proposed and current technologies are compared.
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Draft of rotary part production technology
Lánc, Kryštof ; Trčka, Tomáš (referee) ; Polzer, Aleš (advisor)
The thesis is focused on concept of manufacturing technology for rotary part in case of mass production. The main aim was established suitable manufacturing technology for rotary part, choosing lathe machine, cutting tools and creating of NC program. The part of diploma thesis contains configuration of lathe machine in software Sinumerik. Document includes also the basic rules for developing NC program for two channels lathe.
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