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Analysis of the Impact of Technological Processes on the Properties of the Functional Areas of Bearings
Fišerová, Zuzana ; Čep, Robert (referee) ; Sadílek, Marek (referee) ; Kouřil, Karel (referee) ; Chladil, Josef (advisor)
The dissertation is focused on the bearing production technology issues. The aim of the thesis is to investigate and evaluate the influence of the technological processes on properties of the functional surfaces of an outer bearing ring. The development, rolling, grinding and turning have been selected as basic technological processes. The subject of the surface integrity research on test samples is the measurement and analysis of the quality of the machined surfaces and residual stresses in the surface layers of the bearing rings. The comparison is made in relation to the previous operations - rolling, turning and grinding.
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Cermets
Hanousek, Petr ; Dvořák, Jaromír (referee) ; Humár, Anton (advisor)
This bachelor thesis deals with cermets, as tool material. In the first part of this work is given a basic overview of tool materials. The second part is focused on species, production and properties of cermets. The third part is given comparison cermets in the range of Seco Tools, Sandvik Coromant and Kennametal.
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Multifunctional machining centers for machining rotating and prismatic parts
Hlobil, Jaroslav ; Marek, Tomáš (referee) ; Marek, Jiří (advisor)
The content of this master’s thesis is the choice of a suitable concept for the multifunctional machining center for rotary and non-rotating workpieces and design and processing of one structural node of this machine. The structure of the work is divided into three parts. In the first part, the market analysis is carried out from which it follows to the second part and it is the choice of a suitable machine concept. The third part deals with its own design of the constructional structure of this machining center.
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Machining of Ni80TiAl alloy detail
Kudrna, Miloš ; Novák, Zdeněk (referee) ; Humár, Anton (advisor)
The master`s thesis deal with analysis of machining technology of the bolt from the superalloy Ni80TiAl for the company Sanborn a.s. The aim of the thesis is the project of new technology by usage of new tool, indexable inserts and cutting conditions. The results are speedup of the roughing operation, reduction of the manufacturing cost and the product price.
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Influence of cutting conditions on durability of cutting inserts during turning
Hynčica, Vojtěch ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
The aim of present thesis is to determine the influence of the cutting conditions (the cutting speed, the feed, the depth of cut) on wear and durability of cutting inserts during machining process of the Inconel 718 alloy. In theoretical part thesis describes technology of turning, cemented carbides, their production and coating; it also deal with how the wear of the tool arises and how the tool wear progresses. In experimental part of this thesis we describe the cutting material, the machine, the machine tool and the experiment procedures. Measured values showed, that the durability of cutting inserts decreases depending on the cutting speed. We have determined that there is no direct correlation between the tool wear and the (increasing) level of the feed and the depth cut.
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Production Concept of Single-purpose Stepped Cutting Tool
Opršál, Ladislav ; Chladil, Josef (referee) ; Sedlák, Josef (advisor)
The aim of this thesis is to propose a single-purpose stepped cutting tool for the drilling of the cylinder head. The thesis first introduces the current production of the cylinder head, including the description of the cutting conditions and the machines and tools used in the production process. The second part of the thesis is focused on the drilling of a three-step hole for which a step drill bit is proposed. The proposal describes the development of the drill bit, heat treatment, the method of clamping, the replaceable cutting tips used in the production process, additions for further machining and the cutting conditions. The last part of the thesis then deals with the technical-economic analysis, comparing the present and innovated stage of the production of the cylinder head.
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Machining of difficult machinable materials
Perončík, Martin ; Novák, Zdeněk (referee) ; Humár, Anton (advisor)
Diploma thesis is specialized to solving of problems machining of diffi-cult machinable materials. There is carried out the analysis of difficult machinable materials in term of chemical composition, physical and mechanical properties. In the following it deals with analysis of machining, specification of geometry, material of cutting tools and cutting conditions.
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Production technology of a lifting equipment for tractor cooler
Raiskup, Martin ; Fiala, Zdeněk (referee) ; Zemčík, Oskar (advisor)
The thesis focuses on production technology of the lifting equipment for a tractor cooler. This device is used in order to ease the installation of a cooler during the manufacturing of a tractor. In the first chapter, various types of the lifting equipment are described. In the following chapters manufacturing methods, machines and tools for the production of the specific component are described. Furthermore, materials and manufacturing processes for the complementation of the specific component are proposed. In the conclusion, the methods for the manufacturing are suggested, the timescale is calculated and the technical-economical evaluation is performed.
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Modern cutting tools for grooving and cutting-off
Matoušek, Jan ; Fiala, Zdeněk (referee) ; Píška, Miroslav (advisor)
The thesis in question deals with the influence of geometry of the cutting tool with a non-null angle r and of the cutting conditions on change of cutting tool’s overall deformation during the process of cutting-off and grooving. When conducting the experiments the loading of cutting tool was measured, there was created a simple 3D model of the cutting tool based on measured data, the deformation analysis of the cutting tool by the simulation programme ANSYS was performed and on the grounds of established facts there was made a conclusion on attributes of the cutting tool during the process of cutting-off and grooving.
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