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3D printing large plastic stand
Sklenář, Michal ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis deals with the design and subsequent production of a large plastic stand on a 3D printer. The goal of the bachelor thesis is to divide the production process of the stand so that it can be realized it on a 3D printer workspace. Subsequently, there is an effort to save as much material as possible, but to ensure the full functionality of the stand as well. The topic of the thesis also shows defects and errors that are connected to the process of production and tries to outline their possible solutions. In conclusion, the financial side of production is evaluated, and the properties of the designed stand are compared with stands that are mass-produced. The whole set and design of the stand are conceived for the band "Zoo". The design of the stand is therefore set to produce only one piece.
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Design of recoating system for processing of two metal powders using 3D Printing
Guráň, Radoslav ; Němeček, Stanislav (referee) ; Koutný, Daniel (advisor)
The thesis deals with the design, construction and testing of two different metal powder coating equipment, which is able to work with SLM 280HL metal 3D printer. Since the field of multimaterial metal printing by selective laser melting (SLM) has not been significantly investigated yet, an overview of existing patents and possible approaches to the solution has been developed. The device has been successfully designed and a series of tests was carried out defining the issue of applying an improved head that uses a nozzle and an eccentric vibration motor. Based on the experiments performed, the coating parameters of the multimaterial layer of FeAm and 316L materials were defined. A control system for the partial process automation was created for the proposed device. The device was implemented in a printer that demonstrated both the ability to apply a single multimaterial layer of at least 50 m thickness, and the ability to produce a 3D multimaterial component comprised of up to 200 layers and containing material change across all axes.
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Monitoring of FDM printing process
Rafaja, Hynek ; Čížek, Petr (referee) ; Zatočilová, Aneta (advisor)
The target of this work is the development of a monitoring system for 3D printing by the Fused Deposition Modeling method, which will be able to identify printing error conditions. During the solving process the needed error conditions were identified. Then, an algorithm was programmed to identify the error condition using the criterion. The resulting Monitoring Hardware was implemented in the printer and experimentally verified. A system has been developed that can identify error conditions with an accuracy of 94.7%. The main benefit of this work is the automatic identification of error conditions that stop printing if necessary. This leads to a reduction in scrap and cost savings. In the future, the software could automatically adjust the print parameters when identifying an error condition. This would prevent or completely eliminate the error condition without user intervention.
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Using 3D printing in HVAC
Malovaný, Ondřej ; Rubinová, Olga (referee) ; Uher, Pavel (advisor)
In the experimental part of this thesis there is an assessment of pressure bearing capacity of cylindrical nozzles printed using a 3D printer. In the theoretical part of this diploma thesis there are outlined the types of additive technologies focusing on the development of FDM printers, open designs and RepRap project. Descripti-on of the production process of 3D printing and application of additive technolo-gies in the field of HVAC. In the project part, the design of the forced ventilation of the Sports Hall is solved. The object is assessed in terms of heat losses and profits for priority rooms of functional units. Heat load coverage is carried out by air-conditioning equipment. In addition, a project is drawn up which contains all the text and drawings, including technical specifications and regulatory schemes.
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A study on sintering technologies of Ti-6Al-4V alloy for implants
Bučková, Katrin ; Ohnišťová, Petra (referee) ; Píška, Miroslav (advisor)
This work contributes to the problem of individual replacements of worn human joints by applying new types of implants and materials, made using modern additive technologies (melting of metal powders by laser and electron beam). The main attention is paid to the method called Electron Beam Melting used in the ARCAM Q10plus. Analysis of samples of the sintered Ti6Al4V - ELI alloy is made from the point of view of production precision and quality after sintering in different technological modes and the surface quality reached after turning and tumbling, including measurement of other physical quantities.
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Usage of Modern Technologies for the Design of the Production of Push up Stands
Remer, Tomáš ; Kouřil, Karel (referee) ; Sedlák, Josef (advisor)
This bachelor thesis is focused on the design of the design of push up stands, which are made using the additive Rapid Prototyping technology. The manual beam design is developed in CAD systems, specifically in the Autodesk Inventor parameter set. The model of these beams is made on Fortus 450 mc, which uses Fused Deposition Modeling. The thesis also includes the characteristics of Rapid Prototyping, along with the evaluation of the most used materials and methods. The end of the thesis is completed by the technical-economical evaluation of push up stands, including comparison of the costs of implementation with other organizations.
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Production line optimalization by using SLS aditive technology
Nakládalová, Tereza ; Marek, Jiří (referee) ; Knoflíček, Radek (advisor)
This diploma thesis is focused on additive manufacturing, especially on technology Selective Laser Sintering (SLS) and the implementation of additive manufacturing into existing departments of industry, where current elements of systems are supplemented or directly replaced by new parts produced by these technologies. This thesis solves specific project of manipulation unit for manufacturing line. The main goals of the issue are analysis of current construction design and its deficiency, designing and optimalization of this unit in relation to SLS manufacturing technology, product realization and final evaluating of reached results. Part of the thesis is also design documentation.
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Heat treatment of maraging steel processted by SLM
Valenta, Jakub ; Vaverka, Ondřej (referee) ; Koutný, Daniel (advisor)
The bachelor thesis deals with the study of the heat treatment of the maraging steel 1.2709 (DIN X3NiCoMoTi18-9-5). The first part of the work is survay of studies that focus on heat treatment of maraging steel made by forging or Selective laser melting technology. Based on that section, a heat treatment was designed by which the samples manufactured on ProX 300 from company 3D Systems and M2 Cusing from company Concept Laser were treated. The effect of heat treatment on the mechanical properties of the samples was subsequently tested by tensile testing and metallographic analysis. The test results of both sets of samples were compared with each other and with the results of other studies and the impact of the described heat treatment on the material was evaluated.
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Mechanical design of 3D printer head for manufacturing of concrete parts
Slavíček, Jakub ; Brandejs, Jan (referee) ; Paloušek, David (advisor)
This bachelor thesis deals with a structural design of modular printer head used for 3D print of cementitious mixture. Printer head is designed for continuous printing of cementitous mixture with added crushed stone and accelerator. The main function of printer head is extrusion of the final mixture with established print parametres. In the thesis, the research was conducted into existing 3D concrete printing methods, possibilities of concrete transportation and material characteristics. The analysis is carried out in the second chapter, where the knowledge from the first chapter is evaluated and factors influencing the extrusion of concrete are defined. The design part of thesis specifies basic printing parametres and contains different alternatives of solution. The chosen conceptual solution is elaborated in detail and construction solution includes verifying calculations.
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