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Resistance of Sintered Carbides against Thermal Crack Spreading
Smrž, Peter ; Plíšek, Jiří (referee) ; Kouřil, Karel (advisor)
This thesis aims to compare the relationship of physical-mechanical properties of tool materials made of WC-Co sintered carbides with their resistance to initiation and propagation of thermal cracks. The paper presents the results of testing the basic physical-mechanical properties of the three samples sintered carbides with different percentage of Co binder. Next, this thesis describes the progress and results of quench experiment and cutting tests using, which was described resistance of the tested samples to thermal and mechanical shock, depending on the values of physical-mechanical properties.
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Applications forming limit diagrams
Smrž, Peter ; Varjan, Matúš (referee) ; Podaný, Kamil (advisor)
Thesis contains an overview of four types of forming limit diagrams which includes Keeler-Goodwin diagrams, diagrams of ultimate degree of deformation, diagrams of limit plasticity and deformation-mechanism maps. There are detaily described experimental and theoretical methods of obtaining and construction of limit diagrams. Part of this thesis contains an practical application of these types and their suitability for various forming technology.
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Resistance of Sintered Carbides against Thermal Crack Spreading
Smrž, Peter ; Plíšek, Jiří (referee) ; Kouřil, Karel (advisor)
This thesis aims to compare the relationship of physical-mechanical properties of tool materials made of WC-Co sintered carbides with their resistance to initiation and propagation of thermal cracks. The paper presents the results of testing the basic physical-mechanical properties of the three samples sintered carbides with different percentage of Co binder. Next, this thesis describes the progress and results of quench experiment and cutting tests using, which was described resistance of the tested samples to thermal and mechanical shock, depending on the values of physical-mechanical properties.
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Applications forming limit diagrams
Smrž, Peter ; Varjan, Matúš (referee) ; Podaný, Kamil (advisor)
Thesis contains an overview of four types of forming limit diagrams which includes Keeler-Goodwin diagrams, diagrams of ultimate degree of deformation, diagrams of limit plasticity and deformation-mechanism maps. There are detaily described experimental and theoretical methods of obtaining and construction of limit diagrams. Part of this thesis contains an practical application of these types and their suitability for various forming technology.
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