National Repository of Grey Literature 8 records found  Search took 0.00 seconds. 
The design and manufacturing process of an injection mold
Stančík, Jan ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
Bachelor thesis deals with the topic of plastics injection. Firstly, it deals with the design process of the injection mold, which starts with the design of the injection molding product, with the design of the gating system and depending on the suitable forming of the core and cavity and suitable placement of the ejecting elements. After designing the injection mold design, the work is focused on the TPV documentation for the selected part of the mold assembly. Here are solved technological parameters and machining operations, assignment of machines and tools. In the last part of the thesis, an injection machine is selected depending on the calculations. Finally, an economic assessment is made on injection molding and discussion.
Design of gating systems for wax patterns manufacture by numerical simulation
Vaščák, Tomáš ; Kolda, Vlastimil (referee) ; Horáček, Milan (advisor)
Diploma thesis deals with problem of designing the gating systems for wax patterns manufacture by numerical simulation. It was created an optimum numerical simulation of wax blend injection, optimized for a simple test model and then applied to more complex pieces. Based on knowledge of plastic injection and the simulation was designed several gating systems for mass-produced pieces. These findings were subsequently applied in the design of gating systems to produce large and thin wax patterns. By comparing the various proposals were finally selected the best solution in order to verify the optimum numerical simulation in practise.
Optimization of gating systems (their yield) in Al castings made by investment casting technology
Žižka, Jiří ; Šmatelka, František (referee) ; Horáček, Milan (advisor)
This diploma thesis deals with the optimization of gating systems of shape-complex aluminum castings produced by investment casting process. Two castings whose massive gating systems make problem with the use of liquid metal (so called yield) were chosen for optimization. Each casting is described in its own chapter. The individual subchapters deal with description of the original and newly designed gating system. Simulation, test castings, X-ray inspection and metallographic examination were performed for each variant. At the end of each chapter there is an evaluation of the results of the optimization of gating system.
Possibilities of using filtration in lost wax technology
Boček, Vítězslav ; Soukupová, Lucie (referee) ; Horáček, Milan (advisor)
Final thesis, elaborated within the bachelor study field of Manufacturing technology, deals with literary analysis of using filtration in lost wax technology and with designing of best gating system for those filters. As result of this thesis the best criteria for choosing the best filter for aplication in lost wax casting and literary study maping possibilities of locating those filters in gating system was compiled.
Optimization of gating systems (their yield) in Al castings made by investment casting technology
Žižka, Jiří ; Šmatelka, František (referee) ; Horáček, Milan (advisor)
This diploma thesis deals with the optimization of gating systems of shape-complex aluminum castings produced by investment casting process. Two castings whose massive gating systems make problem with the use of liquid metal (so called yield) were chosen for optimization. Each casting is described in its own chapter. The individual subchapters deal with description of the original and newly designed gating system. Simulation, test castings, X-ray inspection and metallographic examination were performed for each variant. At the end of each chapter there is an evaluation of the results of the optimization of gating system.
The design and manufacturing process of an injection mold
Stančík, Jan ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
Bachelor thesis deals with the topic of plastics injection. Firstly, it deals with the design process of the injection mold, which starts with the design of the injection molding product, with the design of the gating system and depending on the suitable forming of the core and cavity and suitable placement of the ejecting elements. After designing the injection mold design, the work is focused on the TPV documentation for the selected part of the mold assembly. Here are solved technological parameters and machining operations, assignment of machines and tools. In the last part of the thesis, an injection machine is selected depending on the calculations. Finally, an economic assessment is made on injection molding and discussion.
Design of gating systems for wax patterns manufacture by numerical simulation
Vaščák, Tomáš ; Kolda, Vlastimil (referee) ; Horáček, Milan (advisor)
Diploma thesis deals with problem of designing the gating systems for wax patterns manufacture by numerical simulation. It was created an optimum numerical simulation of wax blend injection, optimized for a simple test model and then applied to more complex pieces. Based on knowledge of plastic injection and the simulation was designed several gating systems for mass-produced pieces. These findings were subsequently applied in the design of gating systems to produce large and thin wax patterns. By comparing the various proposals were finally selected the best solution in order to verify the optimum numerical simulation in practise.
Possibilities of using filtration in lost wax technology
Boček, Vítězslav ; Soukupová, Lucie (referee) ; Horáček, Milan (advisor)
Final thesis, elaborated within the bachelor study field of Manufacturing technology, deals with literary analysis of using filtration in lost wax technology and with designing of best gating system for those filters. As result of this thesis the best criteria for choosing the best filter for aplication in lost wax casting and literary study maping possibilities of locating those filters in gating system was compiled.

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