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Economic analysis of machining process
Kalnaši, Radoslav ; Osička, Karel (referee) ; Prokop, Jaroslav (advisor)
This master’s thesis focuses on analysis of time consumption of machining process, the basic units of operating costs of production,optimization and subsequen tapplication to specific part. It is a turning shaft in two operations, named roughing and finishing turning. The aim is to find the optimum combination of life time of cutting tool and cutting speed, which is the main criterion for optimization in terms of minimum production cost or a maximum of productivity.
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On The Analyse of High Productive Reaming Technology
Gashkova, Irina ; Slaný, Martin (referee) ; Píška, Miroslav (advisor)
Diplomová práce se zabývá analýzou technologie vysoceproduktivního vystružování. V rámci práce byly provedeny testy vystružování za různých technologických podmínek (vc=40, 60, 80, 100 m/min; f=0.2, 0.4, 0.6, 0.8 mm) na materiálu austenitické oceli DIN 1.4404 při použití vystružovací hlavicí MT3. Jednotlivé operace vystružování byly porovnány z hlediska parametrů jako tlačná síla, krouticí moment, výsledná drsnost obrobeného povrchu a dále z hlediska tvaru třísky. Následně byly vypočítány průměrné hodnoty a směrodatná odchylka naměřených parametrů. Dále bylo provedeno porovnání pomocí diagramů. Výsledky ukazují lepší kvalitu, nižší drsnost povrchu (Ra 0,37 µm) a méně zdeformovanou třísku při pomalejších řezných rychlostech (40 m/min) a menším posuvu na otáčku (0,2 mm). Výsledky také ukazují nárůst tlačné síly a krouticího momentu za uvedených technologických podmínek. Při zvyšující se řezné rychlosti vystružování tyto silové účinky klesají.
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Cutting Tools for Production of Weapon Parts
Hanus, Vladimír ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
his Diploma thesis concentrates on problems related to cutting tools, their wear, durability, and cutting conditions. The work provides basic analysis of technology applied to two selected parts. Further, there is also analysis of cutting tools suppliers. The work gives brief characteristics of the basic types of wear and their origins. In the experimental section is a statistical evaluation of selected tools, calculation of optimal cutting conditions and durability, and finally selected tools wear evaluated. The technical and economical evaluation compares cutting conditions provided in theory with the real cutting conditions.
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Verification of surface roughness and recommended cutting conditions after milling using tool with inserts
Novotný, Vojtěch ; Fiala, Zdeněk (referee) ; Zemčík, Oskar (advisor)
My bachelor’s thesis aims at practical testing inserts. The first part includes a theoretical analysis of problems connected with main tested parts. Especially, there is a description of face milling, surface structure after face milling and wear of the cutting tool. Next, an experiment is designed and performed, describing the machine used, the cutting tool, inserts, cutting conditions, material for testing and basic experiment criteria. In last part results of the test are presented and optimal value for cutting speed.
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Production of parts for 3D printer
Javorek, Vladimír ; Slaný, Martin (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis deals with problems of design technology of selected parts of a 3D printer from selected material machining. The goal is to design a suitable manufacturing processes, preparation of semi-finished products, choice of cutting instruments, production of technical documentation for creating NC program with using CAD / CAM software and evaluation of technical and economic point of view, the suitability of the method of production.
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Modern tools for boring operation
Stránský, Marek ; Kalivoda, Milan (referee) ; Prokop, Jaroslav (advisor)
The goal of this bachelor thesis is to create an overview of modern tools and machines for drilling process. The detailed analysis of the economic aspects of the drilling process was created at particular problem. The technology of drilling methods was modernized. We can achieve the accuracy comparable with finishing method of machining. Another advance of this method is high productivity of machining which is connected with the need of more powerful machines and tools. In addition, this thesis contains descriptions of machines from wide spectrum of producers.
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On the modern technologies of hole production in metal materials
Laňka, Lubomír ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This bachelor thesis is focused on the modern technologies for the hole production in metal materials. In the first part the fundamental technologies are described including how to make the hole or to modify it. The second part deals with the modern cutting tools, and the other part includes some machines for hole production. Some non-conventional methods of hole machining are also mentioned. The last two parts deals with the experiments - the tool wear and other phenomena are evaluated when machining some selected materials. The work confirms that the titanium alloy is a material very difficult to drill up today.
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Technology cutting external thread
Dlouhý, Michal ; Kalivoda, Milan (referee) ; Prokop, Jaroslav (advisor)
This bachelor thesis is concerned with cutting metods of an external thread. The aim of this bachelor thesis is to described technological conditions and parameters of an external thread. Firsty, there are basic cutting methods described. Secondary, in particular cutting instruments are characterized. In the conclusion the particular cutting conditions are explained.
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