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Modular milling machining center with a horizontal spindle axis and the possibility of mobility
Přibyla, Dalibor ; Marek, Tomáš (referee) ; Marek, Jiří (advisor)
The thesis deals with the design of a medium-sized milling machining center that meets the requirements of modular construction and mobility. These features are essential concerning modern trends in the circular economy and sharing. The current implementation of mobile machines is mainly focused on devices of small sizes and low weights. The concept of a medium-sized machine that could be efficiently transported and operated in a single transport unit, without the need for installing the machine on a fixed base, would offer the possibility of high-performance machining directly in the area of need. The thesis gradually develops the design of such a device. A multicriteria analysis selects the suitable design of the machining center, specifically with a movable stand, and a standardized transport container is chosen as the optimal transport-operational packaging. Solutions for individual construction elements are also proposed. Most of them are selected from commonly available products. However, the machining center itself is specially designed to fit into the transport unit. The foundation consists of the custom design of the stand with the motion system. Modularity is implemented through several series of different construction units of the proposed device. The transport package is designed to meet the criteria of load capacity and rigidity with minimal deflection when loaded with the machining center, which is achieved through rainforcement. Finally, the entire assembly is evaluated in terms of technical and economic evaluation.
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3D metal printing by wire welding methods
Přibyla, Dalibor ; Izák, Josef (referee) ; Sigmund, Marian (advisor)
This thesis presents the most commonly used technologies of 3D metal printing by wire welding methods, like WLAM, EBAM and WAAM. Deals with their principles, sub methods, applications, suppliers and also with current researches and trends, which are focused on deposition of thin layers. CMT technology is closely described, with attention on its certain kinds, like Cycle step, Advanced, Pulse Advanced, Pin and Braze+. Then, the CMT workplace at IMID DREAD, FME BUT is described by individual components, automatization and robotization. Final evaluation shows, that the chosen workplace is appropriate for required 3D print of magnesium alloys and overhanging structures, due to cold metal transfer technology and low purchase price.
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3D metal printing by wire welding methods
Přibyla, Dalibor ; Izák, Josef (referee) ; Sigmund, Marian (advisor)
This thesis presents the most commonly used technologies of 3D metal printing by wire welding methods, like WLAM, EBAM and WAAM. Deals with their principles, sub methods, applications, suppliers and also with current researches and trends, which are focused on deposition of thin layers. CMT technology is closely described, with attention on its certain kinds, like Cycle step, Advanced, Pulse Advanced, Pin and Braze+. Then, the CMT workplace at IMID DREAD, FME BUT is described by individual components, automatization and robotization. Final evaluation shows, that the chosen workplace is appropriate for required 3D print of magnesium alloys and overhanging structures, due to cold metal transfer technology and low purchase price.
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