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Importance of Upsetting Test for Numerical Simulation of Forming Processes
Tinka, Petr ; Dohnal, Ivo (referee) ; Řiháček, Jan (advisor)
The thesis deals primarily with the creation of a material model for numerical simulation using an upsetting test for steel 17 240, a layer of Delta 144 was applied on the steel. From the obtained values of force and path, a material model was created which serves for characterization material for numerical simulation. The simulation was performed in ANSYS Workbench 19.0. From this, force and path are obtained, which is used to compare with the upsetting test. It is clear from the comparison that the values do not differ too much, and it is possible to use this material for numerical simulation.
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Design of tool for drawing of wire
Kryštof, Marek ; Lidmila, Zdeněk (referee) ; Císařová, Michaela (advisor)
This thesis submits design of tool for drawing wire. The wire is using like a semi-finished product for production of steel abrasive brush. Based on a literary study and calculations, the drawing tools were designed according to the attached documentation. The starting blank for drawing was chosen stainless steel wire made of 1.4301 steel (ČSN 17 240) with a diameter of 1.2 millimeters. The production procedure is designed for the KOCH KTZ II/17 towing machine. The wire is drawn in seventeen operations.
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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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Production of uncapping tray
Čudová, Monika ; Dvořák, Milan (referee) ; Císařová, Michaela (advisor)
The project elaborated design of technology production of the extract - tray made of stainless steel 17 240. Based on literary study of deep drawing together with calculations, was designed drawing in instrument with holder. The drawing instrument make use of standardised components and it is solving forms to make up stand fitting to hydraulic press CYS 320, with nominal tensile force 3200 kN. Drawing punch and drawing die are produced from high alloyed steel 19 573 heat-worked according to drawing documentation.
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Analysis of Tube Bulging Process
Zdráhala, Radim ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
The diploma thesis is focused on the analysis of the behavior of the thin-walled tubular test specimen during the technological test of the liquid draining of the tubes. The test specimen ‘in the form a tube was made of austenitic stainless steel 17 240 (1.4301, X5CrNi18-10). During the experiment, the radial expanding tool was quasi-statically charged by the internal fluid pressure. In the introductory part, the thesis focuses on the stress-strain description of the method of tube bulging and possible ways of detecting the strain of material during forming. The experimental part is primarily focused on the analysis of the test sample that was obtained from the experiment. Theoretical approaches were used to analyze the real test sample to detect strain and stress in material, numerical simulation of the bulge process and 3D ATOS scanning device, which helped clarify behavior tube during bulging process. At the end of the thesis is proposed possible design of the tool. This modification should contribute in the future to the full functionality of the radial expanding tool, or the bulging of the tube by liquid.
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Production of wash basin drain grid
Běhounek, Martin ; Staněk, Vojtěch (referee) ; Podaný, Kamil (advisor)
This thesis deals with a draft on manufacturing a sink grill. It is a rotary component that is made of corrosion-resistant steel 17 240. Considering the material, the shape of the component and the size of the production lot of 100 000 pieces a year, the suggestion for manufacturing this component is a technique of a deep drawing with no wall thinning. It has been decided that the trimming will be done with a progressive blanking die and the deep drawing will be done with the use of pressing machine LKDA 315. One part of this thesis is a draft of a design of a tool for deep drawing enclosed in a drawing documentation. In the economic segment, there is a total of expenses for one product which is 9 CZK. Production becomes profitable after manufacturing 67 308 components.
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Production of filter cup
Míka, Tomáš ; Štroner, Marek (referee) ; Podaný, Kamil (advisor)
This work is concerned with the design of producing a filter cup made of material 17 240 (1.4301), 0,5 mm thick and the series 100 000 pcs/year, used in the lever of the espresso machine. The method of conventional deep drawing without wall thinning was chosen as the most suitable technology for the production of body cup. Utilizing calculations, an initial semi-product of circular shape with a diameter of 92 mm was determined. By means of technological and constructional calculations a single operation tool was designed, with the upper blank holder and knockout, which is intended for use with a double-acting press. Its functional parts are made of material 19 436. According to the calculated total force a double acting hydraulic press CTH 250 was chosen.
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Production of ceiling light
Kvasnička, Jan ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
The manufactured component is the inner part of the ceiling lamp. It is made of 17 240 steel in a series of 100 000 pieces/year. A combination of tool cutting and deep drawing without thinning the wall was chosen from the possible production technologies. The diameter of the blank from which the resulting shape is pulled out was calculated to be 400 mm. It will be cut from an unwound coil of sheet metal, the inner diameter of which is 400 mm and the outer 1000 mm. A drawing tool was designed for forming and it's functional parts were made of 19 436 steel. The tool is placed in hydraulic three-acting press PO 160/100 from company Dieffenbacher. The press is part of a line which includes an unwinding device, a straightening device and a cutting tool.
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Production of ceiling light
Kvasnička, Jan ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
The manufactured component is the inner part of the ceiling lamp. It is made of 17 240 steel in a series of 100 000 pieces/year. A combination of tool cutting and deep drawing without thinning the wall was chosen from the possible production technologies. The diameter of the blank from which the resulting shape is pulled out was calculated to be 400 mm. It will be cut from an unwound coil of sheet metal, the inner diameter of which is 400 mm and the outer 1000 mm. A drawing tool was designed for forming and it's functional parts were made of 19 436 steel. The tool is placed in hydraulic three-acting press PO 160/100 from company Dieffenbacher. The press is part of a line which includes an unwinding device, a straightening device and a cutting tool.
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Importance of Upsetting Test for Numerical Simulation of Forming Processes
Tinka, Petr ; Dohnal, Ivo (referee) ; Řiháček, Jan (advisor)
The thesis deals primarily with the creation of a material model for numerical simulation using an upsetting test for steel 17 240, a layer of Delta 144 was applied on the steel. From the obtained values of force and path, a material model was created which serves for characterization material for numerical simulation. The simulation was performed in ANSYS Workbench 19.0. From this, force and path are obtained, which is used to compare with the upsetting test. It is clear from the comparison that the values do not differ too much, and it is possible to use this material for numerical simulation.
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