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Use of water jet technology in a company
Faltus, Tomáš ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This thesis focuses on water jet technology. In the theoretical part of the thesis, the principle and classification of this technology, the quality of the cut surfaces after water jet cutting, the types of bevels, and the equipment needed for this technology are described and analyzed. It also describes the use of an abrasive water jet in machining and summarizes the advantages and disadvantages of this technology. Additionally, the thesis presents the machinery of the company with which the author of the diploma thesis worked, as well as its production range. The practical part of the work is devoted to the experiment, which consists in selecting a component for the production of samples using two abrasive nozzles, with subsequent assessment of the quality of the machined surfaces in relation to the size of the diameter of the abrasive nozzles as well as in relation to the materials and their thickness. Two materials of two different thicknesses were used for the samples. The quality of the machined surfaces was measured using two roughness meters. The average arithmetic deviation of the profile Ra and the largest height of the profile Rz were measured. At the end of the thesis, the deflection of the beam is measured using a microscope, and the consumption and the price of the abrasive for individual sample components were also calculated.
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Surface roughness measurement of shaft parts of gearbox MQ100 using scattered light method
Horák, Josef ; Slaný, Martin (referee) ; Kalivoda, Milan (advisor)
This thesis primary deals with the possible use of measuring the surface texture of gearbox MQ100 shaft parts in serial production by the scattered light method. The introduction briefly describes the company ŠKODA AUTO a.s., as well as gearbox MQ100. The paper continues by describing the process of manufacturing shaft parts, focusing on grinding, no. 130 for pinions and no. 135 for drive shafts, which is the last process of manufacturing shaft surfaces. The next part of the thesis describes the quality of ground surfaces in gearbox MQ100 shaft parts for the control period, followed by the dependency evaluation of parameter Aq, concerning the surface-structure optical measurement, on parameter Rz. After the dependency has been determined, the thesis delineates verification tests, and proposes a tolerance value for parameter Aq when taking the measurements by the diffused light method. In addition, a modification of the OptoSurf measuring device is suggested as well as the proposal of issuing a test certificate in order to determine the final tolerance value of parameter Aq.
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Use of water jet technology in a company
Faltus, Tomáš ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This thesis focuses on water jet technology. In the theoretical part of the thesis, the principle and classification of this technology, the quality of the cut surfaces after water jet cutting, the types of bevels, and the equipment needed for this technology are described and analyzed. It also describes the use of an abrasive water jet in machining and summarizes the advantages and disadvantages of this technology. Additionally, the thesis presents the machinery of the company with which the author of the diploma thesis worked, as well as its production range. The practical part of the work is devoted to the experiment, which consists in selecting a component for the production of samples using two abrasive nozzles, with subsequent assessment of the quality of the machined surfaces in relation to the size of the diameter of the abrasive nozzles as well as in relation to the materials and their thickness. Two materials of two different thicknesses were used for the samples. The quality of the machined surfaces was measured using two roughness meters. The average arithmetic deviation of the profile Ra and the largest height of the profile Rz were measured. At the end of the thesis, the deflection of the beam is measured using a microscope, and the consumption and the price of the abrasive for individual sample components were also calculated.
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Surface roughness measurement of shaft parts of gearbox MQ100 using scattered light method
Horák, Josef ; Slaný, Martin (referee) ; Kalivoda, Milan (advisor)
This thesis primary deals with the possible use of measuring the surface texture of gearbox MQ100 shaft parts in serial production by the scattered light method. The introduction briefly describes the company ŠKODA AUTO a.s., as well as gearbox MQ100. The paper continues by describing the process of manufacturing shaft parts, focusing on grinding, no. 130 for pinions and no. 135 for drive shafts, which is the last process of manufacturing shaft surfaces. The next part of the thesis describes the quality of ground surfaces in gearbox MQ100 shaft parts for the control period, followed by the dependency evaluation of parameter Aq, concerning the surface-structure optical measurement, on parameter Rz. After the dependency has been determined, the thesis delineates verification tests, and proposes a tolerance value for parameter Aq when taking the measurements by the diffused light method. In addition, a modification of the OptoSurf measuring device is suggested as well as the proposal of issuing a test certificate in order to determine the final tolerance value of parameter Aq.
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