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Large Turning Centres
Nábělková, Irena ; Jaroš, Zdeněk (referee) ; Blecha, Petr (advisor)
This bachelor's thesis is dedicated to large turning centres. The first part thesis is the summary of large turning centres, their description and types. Usage possibilities of different large turning centres in cutting operations are mentioned too. In the second part, the calculating proposition of a chosen component of large turning centre is solved. This component is spindle-drive. Calculating proposition contains calculation of cutting force, power, total efficiency, utile work and energy.
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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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Solution turning technology of part "víko" with coated cutting tools
Prokop, Karel ; Humár, Anton (referee) ; Kalivoda, Milan (advisor)
In this bachelor´s thesis is processed analysis of part called cover and there is also processed proposal of the technology its manufacturing. Into proposal of manufacturing are included conventional tools which are compared with different type of manufacturing by tool called EcoCut. For both varieties is elaborated technological process, instruction for turning with counted mechanical times and consumption of changeable cutting tips.
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Technology solution of "konzola" component in condition of a small firm
Štegnerová, Kateřina ; Slaný, Martin (referee) ; Kalivoda, Milan (advisor)
This work deals with the solution technology component of the console. There is an evaluation of technological principles, functionality and the suggestion of optimize. Stock, machines, tools and gauges for each operation are selected according to conditions of the company. For each operation are determined cutting conditions and production time. There are two versions of the production process. Additionally these two versions are evaluated. The console is also analyzed in terms of stress-strain relations, finite elements, which appear critical points. In conclusion, these results are judged.
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Manual programming of CNC machines
Stránský, Michal ; Sedlák, Josef (referee) ; Píška, Miroslav (advisor)
Theme of my bachelor thesis is focused on the manual programming of CNC machines. The thesis is divided into 4 parts. First part is focused on the history and introduction of programming of CNC machines. Second part explains manual programming of CNC and its place in manufacture process. The third part is focused on a automatization of manual programming works. Last part of the bachelor thesis contains a program made with the SINUMERIK 840D control system.
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Regenerative chatter in turning
David, Václav ; Jaroš, Aleš (referee) ; Fiala, Zdeněk (advisor)
Regenerative chatter in turning negatively affects the cutting process, the tool live and the machined surface. In this work is a vibration discriebed by using mathematical formulas or terms. There are listed some causes of creation vibration in turning and some basic methods of complete removal or partial reduction. The second part of this work contains examples of measure and analysis in connection with using of modern software.
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Manufacturing possibilities of sparking plug body
Strnad, Miroslav ; Kopřiva, Miloslav (referee) ; Podaný, Kamil (advisor)
Difficulties of manufacturing sparking plug body are analyzed in this thesis, which aims to select the most appropriate option. Body is circular section of steel 1.1191 (12 050), with a hole in the middle and upper part of this body is ended with hexagonal shape. The series is estimated at 1 000 000 units per year. For the production of sparking plug body are selected options from the machining and forming technologies. Specifically, turning and milling, casting, forging, a method using superplastic material and cold extrusion. Selected technologies will be reviewed based on cost to produce one piece, time requirements of manufacture of the unit, material usability and overall feasibility. According to these parameters forming is chosen as the best option.
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New methods for outer rotary surfaces finishing.
Bartošík, Luděk ; Janský, Milan (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis deal with technologies of finishing rotate surfaces, describe individual methods, their advantages and disadvantages and results on quality of surface. It describe older and new technologies and too conventional and unconventional methods. Here is overview of most used and best know technologies in present engineering.
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