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Improvement of manufacturing technology of flange
Dvořák, Jakub ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This diploma thesis focuses on improvement of the existing technology of the flange part in cooperation with the company Znojemské strojírny, s r.o. The theoretical part describes the technologies used in machining of the component. Subsequently, cutting materials and aluminum alloys are dealt with. A detailed analysis of the existing technology is performed in the practical part of the thesis followed by rationalization of the production process, which was carried out with respect to time and financial savings. A new technological procedure is developed after the improvement of the current production process. Finally, a technical-economic evaluation of the design improvement process is carried out.
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Cermets
Kontšek, Marián ; Plíšek, Jiří (referee) ; Kouřil, Karel (advisor)
The main motive and objective of this work is to summarize and supplement informations related to materials of cutting tools, particularly cermets, their chemical, physical and mechanical properties of the latest knowledge of current trends and offer of these cutting materials. In more detail will be discussed especially reamers of cermets.
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Machining of rotating parts of hardened steel focusing on the surface condition
Bukovský, Petr ; Osička, Karel (referee) ; Chladil, Josef (advisor)
The thesis deals with machining of rotating parts made from hardened steel. The introductory chapter describes the problems of turning and grinding. The next chapter deals with heat treatment and machined materials. The next lists the used cutting materials. Criteria for evaluating the quality of the surface. A selection of cutting materials for the machining of hardened steels from selected manufacturers. The final chapter is a comparison of the described technologies.
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Superhard cutting materials
Mlčoch, Petr ; Dvořáček, Jan (referee) ; Humár, Anton (advisor)
This bachelor thesis deals with superhard cutting tool materials, which include diamond and cubic boron nitride. It is divided into three parts. In the first one there is a short summary of cutting tool materials currently used for machining. The second part pursues sorts, production and properties of superhard cutting materials. The last part represents superhard cutting materials in the offer of two important producers of cutting tool materials and two producers of cutting tools.
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Trend development of tools for production sinuses forms
Fišer, Michal ; Sliwková, Petra (referee) ; Osička, Karel (advisor)
This thesis descibes questions of tools for production of shape hollows focused especially on milling and electroerosion machining. Here you can find individual tools included their description and characteristics, toolmakers and their news. Here are mentioned methods and contemporary trend of cutting. Here is comparison of several tools in concrete applications. Included is also list of basic types of milling tools clamping. In conclustion there is mentioned further development of tools and their using.
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Technology solution of "DC-štít" component in the condition a small engineering company
Komínek, Jiří ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
This diploma work describes below mentioned issues: a plan of construction technology of component called “DC shield” which consists of a block A and a block B, definition of the tasks for “TPV”. Specification of material, production and checking of a semi-product. Determination of the bases, technologies of working and cutting materials. Determination of the manufacturing machines, working out of processing and composition of a tool set. Definition of the jigs, characteristic of the basic changes. Composition of a program and composition of the subroutine systems. Determination of a checking range, measuring and a process of packaging. Economical evaluation with taking account of environmental aspects of the production.
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Structure and Properties of Sintered Tungsten Carbides
Novotná, Hana ; Klakurková, Lenka (referee) ; Čelko, Ladislav (advisor)
This bachelor thesis deals with the structure and properties of sintered tungsten carbides. The literature review section concerns the development of sintered carbides, their composi-tion and structure, different types of carbides, the steps of the production of sintered car-bides, sintering technology and alternative materials for cutting tools. The experimental section deals with composition of WC-Co and is ascertained by the dependency coercivity on WC grain size and also on cobalt content. This work describes the measurement of WC grain size and measurement of the coercivity, one of the fundamental properties of sintered carbides.
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