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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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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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Optimization of production steering shaft
Hlavinka, Martin ; Kalivoda, Milan (referee) ; Jaroš, Aleš (advisor)
Bachelor thesis deals with the creation of the optimal divided chip in the turning technology. The material for production of the steering shaft is steel C35RC suitable for forming and turning from which semi-finished products are produced at horizontally forming presses. They are machined at the production robotized line where the problem with the undivided chip arises. For the specified set of cutting conditions the uses the cutting tools which aren’t very suitable for the given types of technological operations. The recommended values of cutting conditions are different from the specified set of cutting conditions. The result will be choice of new-cutting tools for turning technological operations to shape short divided chip.
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Optimalization of operating costs machining of process
Dostálová, Markéta ; Osička, Karel (referee) ; Prokop, Jaroslav (advisor)
This work deals with operating production costs in machining process and further optimalization. In the first chapter, individual costs items which are related to machining process are specified. These cost items are quantified and total production costs are acquired. Optimalization of operation production costs are described for criterion of minimal production costs and criterion of maximal productivity are described in next chapter. Practical part of this work is focused to apply each individual criterion in practical example. There is CD with programs attached to this work. The goal is to find optimal combination of cutting speed, sufficient life time of cutting tool and suitable cutting technology so that chosen criterion can be acceptable.
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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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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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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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