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The Tool for a Radial Expanding of Tubes by Liquid
Horák, Michal ; Lidmila, Zdeněk (referee) ; Peterková, Eva (advisor)
The submitted diploma thesis is focused on problematic of a radial expanding of tubes. In the first part of thesis, there is a summary of possible theoretical formulas for determining the stress-strain material parameters for biaxial bulging test of tube by liquid. Also there are showed several options for testing tools used in research abroad. The work also contains technological and control calculations for the selected test sample from the tube of steel 17 240 (1.4301). At the end of thesis, there are key points for tool design and there is also presented the proposed the test tool for a radial expanding of test sample of tube to the free space and with firmly fixed the ends of tube in the tool.
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The Tensile Test of Tubes
Janda, Luděk ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
The present thesis deals with the tensile test of tube samples and verifies the possibilities of obtaining the corresponding material characteristics. In this work, a total of 3 types of tube samples made according to ČSN EN 10002-1were investigated. For the experiments, longitudinally welded tubes made of 17 240 steel were selected. The used tube was marked as a thin-walled one. Tensile tests were performed on 22 the samples, namely 8 samples on samples having a form of a cut-off of a full cross section tube, 10 samples a strip of segment cross section and a 4 samples transverse cut-out of tube. The goal of thesis was to validate options of acquiring material characteristics, value of deformation hardening exponent ,,n,, and material characteristic ,,C,, of tube samples. Further examination was aimed at designating which shape of sample tubes used for tension test is most suitable. And behaviour of individual samples was examined with tensile load applied. Tension tests were conducted on hydraulic test machine ZD40.
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The Tool for a Radial Expanding of Tubes by Liquid
Horák, Michal ; Lidmila, Zdeněk (referee) ; Peterková, Eva (advisor)
The submitted diploma thesis is focused on problematic of a radial expanding of tubes. In the first part of thesis, there is a summary of possible theoretical formulas for determining the stress-strain material parameters for biaxial bulging test of tube by liquid. Also there are showed several options for testing tools used in research abroad. The work also contains technological and control calculations for the selected test sample from the tube of steel 17 240 (1.4301). At the end of thesis, there are key points for tool design and there is also presented the proposed the test tool for a radial expanding of test sample of tube to the free space and with firmly fixed the ends of tube in the tool.
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|
|
The Tensile Test of Tubes
Janda, Luděk ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
The present thesis deals with the tensile test of tube samples and verifies the possibilities of obtaining the corresponding material characteristics. In this work, a total of 3 types of tube samples made according to ČSN EN 10002-1were investigated. For the experiments, longitudinally welded tubes made of 17 240 steel were selected. The used tube was marked as a thin-walled one. Tensile tests were performed on 22 the samples, namely 8 samples on samples having a form of a cut-off of a full cross section tube, 10 samples a strip of segment cross section and a 4 samples transverse cut-out of tube. The goal of thesis was to validate options of acquiring material characteristics, value of deformation hardening exponent ,,n,, and material characteristic ,,C,, of tube samples. Further examination was aimed at designating which shape of sample tubes used for tension test is most suitable. And behaviour of individual samples was examined with tensile load applied. Tension tests were conducted on hydraulic test machine ZD40.
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