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Investment casting technology - overview of cast materials
Ostratický, Marek ; Mikulka, Vít (referee) ; Soukupová, Lucie (advisor)
The bachelor´s thesis deals with investment casting technology and overview of cast materials. In fist section deals with production. From the wax model, applying and curing the shell up to the actual casting and finishing operations. The second part is often drawn up a general overview of cast materials, which includes ferrous and non-ferrous metals. The aim is to develop research describing investment casting method with a general overview of cast materials. A summary of their properties and their use in practice.
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Heat treatment of steels
Rosecká, Eva ; Čech, Jan (referee) ; Šenberger, Jaroslav (advisor)
The Bachelor thesis deals with the questions of heat treatment of steels. The literature search explains the basic methods and principles of heat treatment of steels, the iron-carbon chart of equilibrium structure and the IRA and ARA charts of non-equilibrium structure. At-tention is also paid to the equipment for heat treatment of steels, and the principal mechanical properties that are used in the evaluation of steels are explained in brief. The experimental section contains the comparison of three creep-resisting steels in term of “as cast” condition, heat treated steel using operation procedures and laboratory-processed at up-per temperatures specified by the standard. These steels are mostly used in power industry at high temperatures. Their structure and mechanical properties were monitored at various phases of castings production. In conclusion, statistical evaluations and the comparison of those three materials are worked out within the scope of fifty heats.
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Investment casting - defects list
Šmatelka, Jakub ; Staňková, Markéta (referee) ; Mikulka, Vít (advisor)
This bachelor thesis deals with defects which can occurred during investment casting process. In the first part, there is briefly described investment casting process in Alucast s.r.o. company. List of all defects occurring during manufacture is described in the second part. This catalog includes majority of defects from the cast proposal to finishing operations. There are also described causes, consequences and corrective actions.
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Solution technology multiple groove guide pulley.
Teplý, Radek ; Prokop, Jaroslav (referee) ; Kalivoda, Milan (advisor)
This essay discusses the production technology of multiple-grooved pulley and evaluates the technology of construction, the choice of the semi-product and their possible variations for production. The next aim is to describe the choice of production technologies, the selection of tools, the composition of technological process and the composition of different ways of chip removal during production. The essay also presents an economic of batch-production and it defines the optimal ways of production with regards to production costs.
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Motor-driven roller conveyor
Seďa, Marek ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
Baccalaureate work deal with conceptual proposal powered motor-driven roller conveyor longitude 15 m, that the will transport cast given to proportions for either seats overleaf. Work is bent on calculation principal dimensions, solidity verification and generally general proposal constructional solving conveyor. Is free time type roller for transport casts saved on pallets, drive track, which will elect electric motor with gear - box. Last but not least also chain gearthat the to us will serve as driving element rollers. Baccalaureate work would had contribute by firms, companies and subjects, that the derive benefit from roller conveyor for transportation materials. She should enrich constructional possibilities solving these arrangements.
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Solution technology of two groove guide pulley production.
Pokladník, Robert ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
Technology compiling two groove pulley making for two types of billets. As a billets is used in both cases a cast iron EN-GJL-250. The technological process solves production of both variants from designing the billets to trans-mission to the storeroom. The production is realized through cutting operation by CNC machines. The tools are selected with cutting tip. Finaly both variants are compared from economical perspective.
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Solution technology of production multiple groove guide pulley.
Procházka, Zdeněk ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
Solution technology of production multiple groove pulley, comparison of the technology of construction, choice of technology and semi-finished products, choice of cutting materials, analysis of manufacture clamping. Comparison of production possibilities at the application of two different semi-finished products on multi-purpose engines.Making of working process at the application of machine centre and comparison of the effectiveness of its application.
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Pressure die casting technology with a focus on specific technologies used in the foundry Motor Jikov
VOCILKA, Michal
This bachelor thesis is aimed on the process of pressure die casting. The manufacture of that is described in the first part of my thesis. Then there is description of manufacture of a particular part. The thesis is based on expertise of many employees working in Motor Jikov for many years. The text is filled with schematic pictures, photos and graphs. In the next part there is given detailed methodology for treatment of technological process of die casting. The text has been written as well-aranged and methodologically-specific unit to be well-used for teaching.
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