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Modern cutting cemented carbide tools
Vopařil, Josef ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
This thesis is focused on cutting tools made of cemented carbides. It contains analysis of cemented carbides for uncoated and coated cutting tools. It contains examples of modern tools for turning, milling and drilling. Practical part of this thesis evaluates and compares cutting properties of two types of spiral drills.
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Cemented carbides for machining of stainless steels
Kakáč, Martin ; Sedlák, Josef (referee) ; Humár, Anton (advisor)
The bachelor thesis deals with stainless steels and their machining, cemented carbides, both coated and uncoated. The first chapter is devoted to a detailed distribution of stainless steel, its properties and their use in practice. Next cemented carbide are characterized as a whole. From the species, production marking via physical and mechanical properties to the coating. The last chapter is focused on cemented carbides for machining stainless steels. Tools from companies WNT, Pramet Tools and Sandvik Coromant are selected. The com-parison of recommended cutting conditions in the area of application of stainless steels. It is made practical test with indexable cutting insert HCN 2125 by WNT.
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Milling Tools Made from Cemented Carbide
Havran, Petr ; Jaroš, Aleš (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis is focused on the development of cutting tools made of cemented carbides. The first part describes the theory of milling, which is necessary to determine the milling parameters. The next section contains an independent division of milling cemented carbide tools, their uses, advantages and disadvantages. The last part is the selection of tools from the catalogs of the world's businesses and overall assessment.
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Tools Made from Cemented Carbide
Opršál, Ladislav ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
The thesis focuses on cutting tools made of both coated and uncoated cemented carbides. The first part of the thesis deals with the division of materials used for the production of the tools. The second part of the thesis introduces uncoated cemented carbides, special attention being paid to the labelling, production and properties of such compounds. The third part of the thesis presents coating deposition techniques and examines the properties of coating layers. Coating layers are produced using two different methods – CVD and PVD. The last part of the thesis compares the properties of the cutting tools (e.g. their cutting values) produced by the companies Pramet Tools, Sandvik – Coromant and Seco Tools.
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Production and grinding/sharpening of cemented carbide tools
Prokeš, David ; Prokop, Jaroslav (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis concerns the description of rotary tools made of cemented carbides. Ce-mented carbides appear as wide range tool material with reference to ductility, hardness of material and relatively low cost. New knowledge of cemented carbide manufacturing has still improved mechanical characteristics of this material. Tools made of cemented carbides are made on modern 5 axis CNC tool-making grinder machines which can be easily set with grinding parameters and interaction with measuring tools for quick parameters changeover. All of these qualities are suitable for serial and also piece tools production.
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Technology solution with cutting operation of "cover" component
Chlád, Luboš ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
In mentioned solution technology of cover part is processed component analysis, proposal of semi-finished product and production technology. In this thesis are selected concrete cutting machines, tools and technological process is elaborated. At the end the techno-economic evaluation is done. This evaluation deals with calculation of times for separate cutting operations, number of machines, tools and workers.
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Sharpening and producing standard tools on a CNC grinder Walter
Martinek, Petr ; Kouřil, Karel (referee) ; Kalivoda, Milan (advisor)
This bachelor´s thesis presents a modern five-axis CNC machine HELITRNIC POWER from the company Walter Maschinenbau GmbH, which is designed for sharpening and production of rotary, cutting tools. The project provided the most commonly used types of tools, their materials and surface treatment (coating). Furthermore, there is described the production process and sharpening of tools using control software Tool Studio, when considered appropriate wheels and clamping devices. Finally, it provided an economic assessment of costly equipment.
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Coating methods for cutting tools
Doležal, Jan ; Madaj, Martin (referee) ; Humár, Anton (advisor)
Bachelor work describes methods of coating of cutting tools and their technical characteristics. The work is given below the current product range of manufacturers of coated cemented carbides. At the end of this work is treated the development of coating cutting tools and types of applied coatings.
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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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