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Influence of raw materials to the final quality of aluminium investment castings
Macko, Martin ; Vašťák, Patrik (referee) ; Horáček, Milan (advisor)
The purpose of this thesis is to assess the current state of production of ceramic shells in MESIT Foundry, a.s. and optimize it. The shells are evaluated in terms of their bending strength, gas permeability and microstructure. Subsequently, castings produced using the shells are evaluated with regard to number of non-conforming products and presence of defects. The final part seeks to compare different shells and outlines a possible new approach to the development of ceramic shells.
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Actual trends in manufacturing of ceramic shell moulds
Jankůj, Luděk ; Soukupová, Lucie (referee) ; Horáček, Milan (advisor)
Final thesis deals with the properties and production of ceramic shell moulds for investment casting method. Literature search focuses on the core of the production this mould used for ceramic and refractory slurry spreading. Attention is also paid to the technology of its production, testing ceramic shell mould and defects caused by improper manufacturing process forms. Another part of the work is focused on current trends in the production of ceramic shell moulds. The last part describes the production of ceramic shell mould in the company Česká zbrojovka. The conclusion summarizes information of production and the recommended choice of materials and manufacturing processes for ceramic shell moulds for the issue.
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Development of ceramic shell for manufacturing of large Al investment castings
Hýbal, Ondřej ; Šmatelka, Jakub (referee) ; Horáček, Milan (advisor)
This diploma thesis deals with the choice of the most suitable composition of a ceramic shell mold for aluminum castings made by investment casting technology. The most suitable composition of the ceramic shells is chosen based on the results of the tests and from economic point of view. This thesis also deals with evaluation of the current conditions of the production of ceramic shells in Alucast, s.r.o and recommendations for stabilizing the process of manufacturing ceramic shell molds.
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Influence of raw materials to the final quality of aluminium investment castings
Macko, Martin ; Vašťák, Patrik (referee) ; Horáček, Milan (advisor)
The purpose of this thesis is to assess the current state of production of ceramic shells in MESIT Foundry, a.s. and optimize it. The shells are evaluated in terms of their bending strength, gas permeability and microstructure. Subsequently, castings produced using the shells are evaluated with regard to number of non-conforming products and presence of defects. The final part seeks to compare different shells and outlines a possible new approach to the development of ceramic shells.
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|
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Development of ceramic shell for manufacturing of large Al investment castings
Hýbal, Ondřej ; Šmatelka, Jakub (referee) ; Horáček, Milan (advisor)
This diploma thesis deals with the choice of the most suitable composition of a ceramic shell mold for aluminum castings made by investment casting technology. The most suitable composition of the ceramic shells is chosen based on the results of the tests and from economic point of view. This thesis also deals with evaluation of the current conditions of the production of ceramic shells in Alucast, s.r.o and recommendations for stabilizing the process of manufacturing ceramic shell molds.
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|
| |
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Actual trends in manufacturing of ceramic shell moulds
Jankůj, Luděk ; Soukupová, Lucie (referee) ; Horáček, Milan (advisor)
Final thesis deals with the properties and production of ceramic shell moulds for investment casting method. Literature search focuses on the core of the production this mould used for ceramic and refractory slurry spreading. Attention is also paid to the technology of its production, testing ceramic shell mould and defects caused by improper manufacturing process forms. Another part of the work is focused on current trends in the production of ceramic shell moulds. The last part describes the production of ceramic shell mould in the company Česká zbrojovka. The conclusion summarizes information of production and the recommended choice of materials and manufacturing processes for ceramic shell moulds for the issue.
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