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Relevant bibliographies by topics / Parametry řezání / Dissertations / Theses

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Dissertations / Theses on the topic 'Parametry řezání'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Sámelová, Vendula. "Technologické parametry elektrojiskrového řezání drátovou elektrodou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228642.

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The work deals with the technology of electrical discharge machining using a wire electrode. Described are machines, tools, wire electrode cutting parameters and advantages of this technology. The aim of the work is to quantify the cutting area with respect to dimensional accuracy, make an analysis of surface layer state and quality after wire cutting, and describe factors affecting this layer. In particular, emphasis is put on tool steel cutting.

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2

Šťastný, Jan. "Souvislost vad řezu s řeznými parametry při laserovém řezání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230119.

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The project in first part deals with theoretical analysis of technological possibilities of method of dividing materials with laser, principal and function of laser, division of different types of lasers, properties of laser ray, laser cutting, cut defects etc. Experimental part is focused on analysis of used machines and equipment, finding of optimal cutting parameters during laser cutting, evaluation of samples and then analysis of problem with generation of step changes and analysis of other possibilities for optimizing of the cut.

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3

Mareš, Pavel. "Souvislost vad řezu s řeznými parametry při řezání abrazivním vodním paprskem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230789.

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The aim of this thesis is to determine the area where there is no random step change in cutting edge roughness. This area is established on the basic of samples created by the abrasive water jet cutting method with variation of technologic parameters.

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4

Tonkovič, Miroslav. "Analýza materiálu pro laserového řezání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231507.

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This thesis deals with laser cutting of metal sheets from selected steel producers. The basics of laser technologies, especially in industrial use, are described in the introductory part. There the material requirements are described from the point of view of laser cutting. The comparison of materials from different steel producers is made from different angles in the practical part. The conclusion is dedicated to the evaluation of achieved results.

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5

Hort, Zbyněk. "Parametry laserového paprsku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318845.

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The diploma thesis consists of the three main parts. The first part deals with the theoretical description of the laser technology and other unconventional technologies. In the second part, the thesis is focused on testing the parameters of the laser and evaluating the most suitable parameters. In the last part the diploma thesis deals with comparison of unconventional technologies in terms of cut quality

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6

Dušek, Přemysl. "Aplikace laseru při obrábění dřeva." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230854.

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This diplom thesis addresses the fundamental analysis of the general use of laser technology. Maintanence parameteres in laser wood cutting. Design wooden kit, cutting wooden kit and make kit prototyp. Last part of diploma thesys deals with technical and economic evaluation and comparison laser technology versus CNC machine. In diplom thesis is created procedure for glue kit.

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7

Pecháček, Martin. "Hodnocení kvality povrchu při řezání u technologie AWJ a WJM." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228934.

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This study deals with technology of abrasive water jet material cutting and influence of cutting head feed rate on surface topography of cut walls with regards to roughness. Eight parameters were chosen based on the CSN EN ISO 4288 standard representing quality of surface after AWJ cutting. When AWJ cutting the chosen material – commercially pure ASTM B265 grade 2 titanium – feed rate was being changed and in order to obtain information about each parameter´s distribution in various depths of the cut, surface composition was evaluated. It was found out that feed rate has significant influence on surface and that the profile elements´ width grows when increasing the feed rate and cut depth. Furthermore, two selected feed rate results were compared to laser beam technology and conclusion for the selected material was made that AWJ cutting is more preferable due to final roughness and no heat affect on the material.

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8

Láznička, Pavel. "Laserové mikroobrábění." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231520.

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This thesis deals with lasers, their general theory and application. Then a theoretical part describes laser micromachining and engraving. Experimental part of thesis deals with several experiments performed by powered fibre laser which is not primarily intended for the field of micromachining. Experiments were mainly evaluated by several types of microscopes where the amount of removed material was appraised. By particular experiments removed material was in accordance with used working parameters of laser and a significant role plays machining material. It emerges from the experiments that for the field of laser micromachining and engraving shorter pulses are more suitable (minimal pulse duration was 1 ms in experiment) and it is connected even with a way of removing material. Applied powered laser can be used for micromachining in specific fields of production.

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9

Vacula, Jakub. "Optimalizace parametrů plazmového řezání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228561.

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VACULA Jakub: Optimization of plasma cutting parameters Diploma thesis of the attendance engineer´s study – Mechanical Engineering, specialization Machinery Technology. Academic year 2008/2009. Faculty of Mechanical Engineering of University of Technology in Brno, Institute of the Manufacturing Technology. The Diploma thesis is concerned with the thermal division of a material, concretely by the plasma cutting. It monitors the operational parameters influence of this process to the result quality of cut and the purpose is to optimize these parameters from the qualitative standpoint. The experiment was executed at the plasma cutting equipment Fine Focus 800 of the company KJELLBERG with the utilization of the material S 690 QL. On the base of the literary study of the thermal division of the materials problems it was also described the comparison of the plasma cutting with the method of the division of materials by the oxygen, both from the point of view of the quality, and from the economical point of view.

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10

Prokeš, Tomáš. "Optimalizace řídicích parametrů EDM stroje." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-446793.

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The dissertation thesis is focused on the optimization of control parameters of an EDM machine; the subject of optimization is cutting speed and surface topography. The first part of the thesis contains a research study on the technology of electrical discharge machining with the attention paid to the optimization methods use for control parameters of this process. The second part of the thesis is focused on real application of knowledge gained from studied sources. Here, a design of experiment aim at optimizing the parameters of the EDM machine is designed and carried on to maximize the cutting speed with the highest possible surface quallity. The result of the work is to build adequate regression models and find the optimal setting of machine control parameters.

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11

Kubla, Dalibor. "Technologické aspekty řezání válcovaných materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230006.

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This master's thesis deals with separation of metallurgical materials focused on cutting and other general methods of material separation. The aim of this thesis is to focus on cutting of rolled material by saw, specification of technological aspects of cutting of rolled materials, techno-economic analysis of the problem

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12

Kučera, Michal. "3D vodní paprsek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231503.

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This master thesis deals with the use and technological capabilities of abrasive water jet in the application of 3D cutting head. One part of this thesis is the description of waterjet technology and its other applications. The experimental comparison of the effect of the parameters was carried out for different materials Mach 4 equipment Flow International Corporation in company AWAC, spol. s.r.o. and subsequently the workpieces were subjected to evaluation of the shape and dimensional accuracy.

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13

Tichý, Štěpán. "Technologie drátové elektroeroze." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231987.

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This master’s thesis deals with technology of wire electrical discharge machining in theoretical and practical level. Theoretical part of the thesis explains in detail the principle of electrical discharge machining, describes functional parts and settings of a current wire EDM machines and also the possibility of using method for production of specific parts. Practical part of the thesis solves manufacturing of gearing on pinion manufactured by wire cutter EXCETEK V650 and statistically evaluates precision parameters on surfaces of the carriers taken by specific technological conditions with the same machine.

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14

Drda, David. "Technologické a ekonomické parametry řezného nástroje." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228639.

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Aim master´s thesis is analyzed technological and economical parameters of cutting tool. Firstly there are the parameters cutting tool, cutting wear, economical parameters and costs on running tools specified. In the conclusion there are reach technological and economical parameters of cutting tools analyzed and tested on practical sample. The sample is part of attachments in form programme on calculation in Excel, together with evaluation by means of graphs.

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15

Bukáček, Zdeněk. "Technologie obrábění tvrdých materiálů nástroji s definovanou geometrií břitu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228640.

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This master’s thesis is concerned with subject matter hard machining with defined geometry edge tools. Aim master’s thesis is analysis and parameters evaluation machined surface at hard machining. This master’s thesis contain a characteristic of hard materials, used technology for cutting operation, but also tools and cutting conditions suitable for hard machining. In the conclusion are parameters evaluation machined surface the workpiece.

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16

Králík, Petr. "Studium řezných vad při oxidačním dělení mezních tlouštěk konstrukční oceli pevnolátkovým laserem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231518.

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This thesis deals with research of cutting defects at laser cutting of 15 mm thick carbon steel by Bystronic fiber laser with emphasis on wide cutting gap, which causes enlargement of wide of cutting gap and deterioration of roughness of cutting edge and increase of creation fo heat. The introduction describes the main types of lasers used for cutting sheet of metal and compare their advantages and disadvantages. Also described is a cutting process and its parameters, and also the possible cutting defects. An experiment was conducted on steels S355MC and S235JR and cutting defects were analyzed in relation to the set of cutting parameters. Next part determines the extent of the recommended parameters that should be chosen for specific cutting conditions and is balanced recommendations regarding the choice of material to be cut, and technological adaptations parts. In the last part is measured roughness of a wide cutting gap, the width of the heat affected zone and micro-hardness of the material.

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17

Krajkovič, Pavel. "Optimalizace obráběcích parametrů abradable nástřiků používaných v leteckém průmyslu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231999.

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This thesis is focused on machining of thermal spray coatings. Particularly on testing of machining parameters and their influence on different types of abradable coatings used in the aerospace industry. The aim of research work is to test the parameters, measure cutting forces by using a dynamometer and their impact on the quality of the machined surface. Determination of the optimal machining parameters for different types of coatings based on results of measurements and the evaluation of surface quality. There are also presented techniques of thermal spray application and methods of coating evaluation. Further it describes a method of measuring cutting forces by using the dynamometer and methods of surface quality evaluation.

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18

Kubín, Matěj. "Obrábění těžkoobrobitelných materiálů pomocí vodního paprsku s abrazivem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402519.

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The diploma thesis deals with unconventional technology of material separation by water jet with abrasive. It describes the influence and specification of technological parameters of the water jet on the quality of the cutting surface. The work contains an experiment, where the aim was to achieve from the theory the influence of tech-nological parameters on surface roughness on composite materials from glass fiber and carbon fiber.

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19

Mangl, Petr. "Optimalizace parametrů broušení slinutých karbidů diamantovými kotouči." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228780.

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This master‘s thesis is presenting the way of the optimization of grinding characteristics when grinding cemented carbides by diamond wheels. There is described the theory of grinding, including grinding wheels and basic characteristics of cemented carbides in the theoretical part. There are defined experimental metering accomplished on the CNC grinding machine Walter Helitronic Power Mini in the practical part. There were tested eight grinding wheels. The grinding rate, surface roughness Ra, theoretic guaranteed storage period of grinding wheel in number of cuts, theoretical capacity of machined material, achievement of grinding machine and behaviour of the wheels when grinding ware evaluated from the reached results.

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20

Dlouhý, Michal. "Technologické aspekty přesnosti obráběcího procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228644.

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This master‘s thesis is concerned by accuracy cutting of the process. The aim of this graduation theses is to describe metodology quantification of the parameters accuracy of cutting process and to check it. Firstly, there are the parameters accuracy of cutting process identified. Secondary, there are particular technological influences over accuracy of shaping process characterized. In the conclusion, there are characteristics accuracy of shaping process quantified and tested in practice.

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21

Šebelová, Eva. "Optimalizace parametrů obrábění materiálů na bázi dřeva." Doctoral thesis, 2014. http://www.nusl.cz/ntk/nusl-249311.

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The work is focused on the optimization of cutting conditions for wood-based materials machining where the cutting conditions are thus selected to ensure the most efficient machining of the product. Cutting conditions parameters evaluation is based on experimental assessment of interaction between the cutting tool and machined material using a variable cutting parameters. However, experiments needed to obtain a sufficient amount of data are very time consuming, expensive and material consuming as well. It is necessary to consider life-time of the cutting tool, as well as the type of material and its suitability for machining and then to determine the optimal cutting conditions. The aim of this work was to create a new approach for efficient machining. It is based on the methodical procedure of the optimal cutting conditions determination for wood-based materials using knowledge about their properties in relation to the machining process.

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