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The problems of production of railway wheels
Šimčík, Vladimír ; Kubík, Roman (referee) ; Kalivoda, Milan (advisor)
The main idea of this work is especially to make clear the principle of railway wheelset technology, consisting of wheels, axle and other necessary components. Based on available information sources, BONATRANS GROUP a.s. literature, practical advices, experience and knowledge of practical issues, the problems in the manufacture of railway wheelsets and proposals for their elimination will be named.
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Suggestion of the manufacturing technology of a fastener for plastic molding
Duda, Tomáš ; Slaný, Martin (referee) ; Jaroš, Aleš (advisor)
The diploma thesis convey the information about the creation of technological procedures leading to the optimal way of repairing damaged parts of the fixture and creating production procedures for the production of new parts of the assembly. The theoretical part is focused on the analysis of the issue, determination of material of damaged parts for future production and designed semi-finished product. Furthermore, the technology of production from the point of view of used technologies is discussed. This includes a description of the tool materials. The practical part of the thesis is focused on the design of technological procedures for repairing damaged parts, which must be repaired as soon as possible. For the future production of new parts, the second half of the practical part includes the manufacturing processes including their description. There are evaluated variants of repair and production of new parts at the end of the thesis.
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Issue of Internal Tension in Materials during Machining of Thin-walled Components
Osička, Petr ; Chladil, Josef (referee) ; Sedlák, Josef (advisor)
This master thesis focuses on analysing the origins of residual stress in material caused by face milling. Representatives of three groups of aluminum alloys (5000, 6000, 7000) are compared by measurements. For measuring of the residual stress in aluminum alloys, the hole-drilling method was used by applying tensometric rosettes. In order to determine the influence of the used milling cutters', flatness of the machined surface was analyzed by comparative method. The thesis concludes with a discussion and an overall evaluation of the results.
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Suggestion of the manufacturing technology of a fastener for plastic molding
Duda, Tomáš ; Slaný, Martin (referee) ; Jaroš, Aleš (advisor)
The diploma thesis convey the information about the creation of technological procedures leading to the optimal way of repairing damaged parts of the fixture and creating production procedures for the production of new parts of the assembly. The theoretical part is focused on the analysis of the issue, determination of material of damaged parts for future production and designed semi-finished product. Furthermore, the technology of production from the point of view of used technologies is discussed. This includes a description of the tool materials. The practical part of the thesis is focused on the design of technological procedures for repairing damaged parts, which must be repaired as soon as possible. For the future production of new parts, the second half of the practical part includes the manufacturing processes including their description. There are evaluated variants of repair and production of new parts at the end of the thesis.
|
|
|
Issue of Internal Tension in Materials during Machining of Thin-walled Components
Osička, Petr ; Chladil, Josef (referee) ; Sedlák, Josef (advisor)
This master thesis focuses on analysing the origins of residual stress in material caused by face milling. Representatives of three groups of aluminum alloys (5000, 6000, 7000) are compared by measurements. For measuring of the residual stress in aluminum alloys, the hole-drilling method was used by applying tensometric rosettes. In order to determine the influence of the used milling cutters', flatness of the machined surface was analyzed by comparative method. The thesis concludes with a discussion and an overall evaluation of the results.
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|
|
The problems of production of railway wheels
Šimčík, Vladimír ; Kubík, Roman (referee) ; Kalivoda, Milan (advisor)
The main idea of this work is especially to make clear the principle of railway wheelset technology, consisting of wheels, axle and other necessary components. Based on available information sources, BONATRANS GROUP a.s. literature, practical advices, experience and knowledge of practical issues, the problems in the manufacture of railway wheelsets and proposals for their elimination will be named.
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