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Cutting force analysis when tapping
Štokman, Michal ; Sedlák, Josef (referee) ; Píška, Miroslav (advisor)
This master‘s thesis deals with cutting force analysis when tapping. This thesis includes basic methods of manufacture of threads, physical fundamentals of the cutting process, PVD coatings, tool materials, analysis and assessment of the testing nut taps with the application of PVD coatings.
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Methods of coating and coatings analysis
Rudy, Veronika ; Mouralová, Kateřina (referee) ; Prokeš, Tomáš (advisor)
The thesis deals with the coating of cutting tools. It summarizes the types of material used to create cutting tools, the characteristics of the main coating methods, the way tools are treated before coating and methods of testing the physical properties of coatings. The practical part contains the description of coating deposition on interchangeable cutting blades, where two types of coating were tested (SHM1 and SHM2). Furthermore, their mechanical and physical properties were tested. The analyzes used were adhesion and cohesion tests, coating thickness and hardness along with the chemichal composition.
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Progress in technology of mold milling with coated profile tools
Doležel, Ondřej ; Bumbálek, Bohumil (referee) ; Píška, Miroslav (advisor)
This diploma thesis is involved in possible development of different types of milling molds coated with modern plows. The first part is devoted to an analysis of contemporary trends in forms production technology. The analysis includes the different types of machines and tools for making various kinds of molds and dies. Another part deals with design of dies for sheet metal shears. The thesis continues by design of the production procedure after heat treatment and finishing die by miling. For milling of die are designed miling tools, the NC program and the possible development of manufacturing the die using a new machining center and the possibility of production optimization. The penultimate point of the thesis is technical and economical evaluation of the direction of development and comparison of positives and negatoves of each method. At the final evaluation is all summed up.
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Characterization of suspension plasma sprayed coatings deposited using different organic carriers
Dukovský, Daniel ; Toma, Filofteia-Laura (referee) ; Čížek, Jan (advisor)
Cílem této bakalářské práce bylo charakterizovat a porovnat povlaky nanesené plazmovým žárovým nanášením ze suspenze s použitím různých organických nosičů. Teoretická část obsahuje stručný popis běžně používaných metod žárového nanášení a blíže se věnuje technologii hybridního vodou stabilizovaného plazmatu (hořák s touto technologií byl využit pro nanesení povlaků v tomto výzkumu). Druhá polovina teoretické části se zabývá věcným popisem povlaků a metodami nanášení prášku o velikosti částic v řádu nanometrů, kde hraje důležitou roli právě použití suspenze. Experimentální část je zaměřena na vliv použitého solventu v suspenzi na charakteristiky výsledného povlaku. V závěrečné části jsou prezentována a diskutována naměřená data a vyhodnoceny výsledky.
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The Analysis of Carbide Cutting Inserts.
Pavelka, Rudolf ; Humár, Anton (referee) ; Osička, Karel (advisor)
This study states basic technological aspects of metal machining with cutting inserts, with special stress on coated carbide cutting inserts. Among others, it states wear-out theory incl. wear-out accompaniments, problems of chip-forming and other factors of metal machining. At the end of the study, it contents a description of the latest cutting materials and construction elements of cutting inserts from reputable producers and, for some of them, also the course and the results of practical tests and comparison.
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Material printing of light dosimeters
Kabelková, Markéta ; Vališ, Jan (referee) ; Veselý, Michal (advisor)
This diploma thesis is focused on material printing of light dosimeters, especially printing of dosimeters for visible light and two types of UV radiation dosimeters. The aim of this work was to convert optimized systems from laboratory scale to pilot plant and to prepare individual systems for large-scale printing. The experimental part deals with the preparation and gradual scaling of compositions to a pilot scale, including optimization of individual components. Problems which were found during scaling up are discussed. A roll-to-roll material printer with slot-die technique was used to convert to a pilot scale. The prepared layers were exposed and their color changes was studied in detail. In addition to printing optimization, the thicknesses of the prepared layers and their resistance were determined, as well as tests of shelf life and reaction of dosimeters to ozone. According to the tests which were performed, guidelines for quality control of light dosimeters printing were compiled.
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Coated cemented carbides
Foltýn, Michal ; Sedlák, Josef (referee) ; Humár, Anton (advisor)
This bachelor’s thesis is focused on coated cemented carbides, methods for coatings and properties of coatings. In the first part of this thesis there is mentioned basic subdivision of tool’s materials, including description of properties and possibilities of their use. Another part of this thesis is focused on the coating deposition methods. As each method there is noticed the description, advantages and disadvantages. In next part there are described processes which precede own deposition process and their influence on properties of coatings. In this thesis are also described properties of coatings and methods for their testing. The last part of thesis is focused on the offer of certain producers of coated cemented carbides. Several materials are chosen from each producer and there are mentioned descriptions of their properties, structure of coatings and possibilities of using.
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The Coating of Surface of Metal Components
Táborský, Pavel ; Žák, Ladislav (referee) ; Peterková, Eva (advisor)
The thesis deals with the process of coating components, which is used as a surface protection of metal against corrosion. In this literary study, there are listed causes of corrosion, ways of protection, principles of several methods of mechanical and chemical surface preparation, description of powder coating material, methods of heating and the overall technological process. Part of the thesis is methodology of creating educational materials for operators of powder coating line.
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