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Testing of cutting parameters for UMCo50 machining
Jakubec, Thomas ; Kolomý, Štěpán (referee) ; Zemčík, Oskar (advisor)
The diploma thesis deals with the machinability of materials, the theoretical part describes the factors that have a dominant influence on machinability. The basic aspects according to which the machinability of the material and the wear of the tool are determined are also given here. The distribution of cobalt alloys is given here, including the UMCo-50 alloy, which is the subject of experimental research. It is an alloy for high-temperature use with good abrasion resistance and is used especially where other materials lose their mechanical properties due to the high temperature. The practical part followed the thesis of my colleague Ing. Peter Prno [1], which due to lack of time could not measure all the necessary quantities, resp. course of back wear for the remaining two cutting speeds. During the experiment, the wear of the tool back was monitored as a function of time at different cutting speeds in turning technology. The main goal was to determine the resulting tool life at the remaining cutting speeds and thus obtain a more accurate Taylor dependence. The turning forces, the quality of the machined surface and the formation of chips were also monitored during turning.
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Production of grinding roller driveshaft
Vencl, Petr ; Osička, Karel (referee) ; Polzer, Aleš (advisor)
This master’s thesis deals with production of grinding roller driveshaft in Bühler CZ s.r.o. in Žamberk. In the first part the attention is focused on analysis of current technology. Following chapters of thesis are focused on innovations to existing production technology, for example a technological test, CNC programming realization, machine times calculations or creating of technical documentation to ensure production of rotating part. The last chapter of the thesis focuses on economical assessment.
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Effective turning tools
Kutil, Jaroslav ; Osička, Karel (referee) ; Humár, Anton (advisor)
This thesis is focused on high-performance turning tools. The first part deals with the characterization of turning, including basic kinematic relations. In the second part the division of tools and a the description of tool materials are introduced. The last part is centred on the assortment comparison of selected producers of tools in the field of construction.
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Analysis and Visualization of NC Code
Konečný, Michal ; Čermák, Martin (referee) ; Koutný, Jiří (advisor)
This project deals with NC tooling visualization and NC code analysis problems. Implementation`s solutions for tooling`s techniques and tools are described in the project . Here visualization`s solution of the tooling`s proces are described, for this OpenGL library si used. In this work problems, we encoutered during work on this project, are analyzed.
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Technology Design Components Bearing Cover
Veselý, Libor ; Prokop, Jaroslav (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with the design technology for product components "bearing cover“ in two variants. The first of them is designed for the production of one-piece components in company conditons. The second is concerned with the design technology for serial production of the same components using machines and tools from current production. The thesis contains designs for semi-finished components, the selection of machines from the company fleet, the design of suitable tools and cutting conditions. An economic evaluation deals with the determination of machining times for both variants of production. The proposed technology will be used for the real production of components.
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Turning of main steels
Svoboda, Kryštof ; Slaný, Martin (referee) ; Jaroš, Aleš (advisor)
The main theme of the thesis deals with turning of main steels. The basic quantities, force load during turning and geometry of knife with splinter shape are explained in introduction part. Followed by brief overview of instrumental materials. For main steels there is perform an analysis of mechanical and physical properities, alloying elements and their application. In final part there is selection of several replaceable cutting inserts suitable for main steels.
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Sinumerik 840D control system for programming of blanks for gear manufacturing
Havlát, Pavel ; Sliwková, Petra (referee) ; Polzer, Aleš (advisor)
The master thesis deals with the use of the Sinumerik 840D control system for programming of blanks for gear manufacturing. The first part of the thesis is focused on analysis of machinability of the material followed by experimental testing of machinability of material 16MnCr5. An experimental evaluation of the effect of cutting parameters was carried out to force load of semi roughing cutting tool CoroTurn 300. In the next part of the thesis there is a technical documentation of gearing parts, for which a NC program is created. Finally, the possibilities of using the Sinumerik 840D control system are listed and demonstrated by workshop-oriented programming of the considered components for the SP 280 SY turning center.
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Roller-burnishing technology as finishing oparation.
Sekerka, Vít ; Sedlák, Josef (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis deals with chipless finishing operation of roller-burnishing. It explains and describes basic ideas concerning finishing and hardening of machine components by means of roller-burnishing, parting of tools, application in manufacturing and techno-economic usage. Own project, which deals with rollerburnishing of inside conic surface, is part of the thesis too.
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Technology production of die
Kubášek, Pavel ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
The aim of the master´s thesis is to adjust the technology of machining of a die on the CNC lathe so that the total time for the production of a die could be reduced significantly and in this way also the production costs. The analyse of the technology of the machining of the inner part of the die is carried out and a change in the machining of this part is suggested. The new technology is elaborated in two variants when the CAD/CAM system is used for the creation of a programme in a variant and the machining cycles in the other. The technical and economical evaluation is performed at the end of the thesis.
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