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Design of linear clock
Firla, Marek ; Malý, Martin (referee) ; Svoboda, Petr (advisor)
The main goal of this thesis is to describe the design, construction, and manufacture of linear clocks. The first part describes the current linear clocks design. The second part describes the design of a linear clock prototype. The linear clock is controlled by an Arduino UNO microcontroller unit, the time is measured by the real-time module, the movement of the time indicators is mediated by a pair of stepper motors. Manufacture is done using 3D printing.
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Project
Malý, Martin ; Kratochvílová, Erika (referee) ; Šlanhof, Jiří (advisor)
The aim of this work is the processing of the technological project for the ,,Skladová hala v Měříně“, which addresses the preparation and organization of construction. Construction technology the project involves the processing of time plans, economic evaluation, design of pumping sources for construction, working procedures, construction site equipment, and design of major machines and mechanisms. Further, it is processed a detailed technological regulation and inspection and test plan for a prefabricated reinforced concrete skeleton. All technological procedures are processed with regard to work safety and environment.
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Home health services - Bobrová, technological stage of roofing
Malý, Martin ; Hanzelková, Martina (referee) ; Šlanhof, Jiří (advisor)
The bachelor thesis deals with structural and technological solution to roofing of the house health services in Bobrové, in the Highlands. Addresses the implementation of a truss structure of a gable roof and a subsequent cladding. The main content of the work formed the technical report, the construction situation, the budget with the statement of assessment, technological regulation, construction site equipment, timetable, design of mechanical assembly, inspection and test plan and work safety.
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Characteristics features of luminescence radiation solar cells
Malý, Martin ; Šimonová, Lucie (referee) ; Stojan, Radek (advisor)
This thesis deals with characteristic features of luminiscence radiation solar cells during electroluminiscence. Electroluminescence is the process in which a substance begins to radiate electromagnetic radiation (luminiscence radiation) due to passing electrical current. Various defects in the structure of the photovoltaic cell can cause polarization of that radiation. The aim of this thesis is to measure some polycrystalline solar cells by electroluminescence. Selected solar cell is measured by electroluminescence extended by polarizing filter and afterward collected data are processed in MATLAB.
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Processing of Inconel 939 alloy using laser powder bed fusion at elevated temperatures
Hertl, David ; Dočekalová, Kateřina (referee) ; Malý, Martin (advisor)
The thesis deals with the problem of Inconel 939 alloy processing by SLM technology using base plate preheating. The main objective of the work is to verify the effect of base plate preheating on residual stresses. The problem was solved by two approaches: process simulation, and subsequent experimental verification. The process simulation with preheating temperature of 400 °C achieved the highest agreement with the experiment with a deviation of 4.1 %. Based on the experiment, a suitable base plate preheating temperature of 100 °C was determined to reduce the deformation and residual stresses. By processing Inconel 939 using preheating temperatures of 100 °C and 400 °C, static mechanical properties comparable to those of the standard components processed by SLM technology from Inconel 939 after the heat treatment were achieved. These results offer the potential for significant reductions in overall production time and costs associated with manufacturing Inconel 939.
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The EU Enlargement in the Context of the Financial and Economic Crisis
Nguyen, Gary ; Malý, Martin (referee) ; Ptáček, Roman (advisor)
This thesis focuses on the enlargement of the EU in the context of the impact of the financial and subsequent economic crisis. The thesis is divided into chapters. The first chapter introduces the causes and impacts of the crisis. The following chapter focuses on the performance history of the EU and the reasons for its expansion. The third section presents the current candidate and potential candidate countries in terms of their productivity and the development of relations with the EU. The last chapter identifies possible solutions proposed and attitudes towards expanding this unity. It is also analyzed the main objective of the work. The conclusion summarizes the findings of the thesis.
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Heat treatment of aluminum alloy AlSi7Mg0,6 fabricated by metal 3D printing
Zabloudil, Jan ; Malý, Martin (referee) ; Koutný, Daniel (advisor)
Author tries to obtain new information about the influence of different heat treatments on SLM fabricated AlSi7Mg0,6 alloy, its mechanical properties and residual stress. For this purpose were chosen parameters of heat treatment based on previous research of other authors. With the use of normalised tensile strength test specimens and special specimens for analysis of deformation caused by the residual stress were the influences studied. Author checked the influence of stress relieving annealing, parameters of precipitation hardening and artificial ageing on mechanical properties and residual stress in the material. Results can help fabrication of studied material to receive required properties and eliminate the deformation caused by the residual stress.
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Creativity, Innovation and Organizational Culture
Malý, Martin ; Effenberk, Pavel (referee) ; Franková, Emilie (advisor)
This thesis focuses on the themes of creativity, innovation and organizational culture. The theoretical part deals with definitions of terms, relations between them and recommendations for practical use. Practical project focuses on the analysis of selected companies Partners Financial Services, a.s. and on the basis of survey, interview with their staff and own observation is formulate evaluation of organizational culture, creativity and teamwork in the company. Based on the findings of deficiency are processed suggestions for improvement.
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Development of a strategy for 3D printing of copper using Laser Powder Bed Fusion
Kryšpín, Vojtěch ; Vaverka, Ondřej (referee) ; Malý, Martin (advisor)
Copper sees vast usage in aeronautical, electrotechnical and energy industries due to its excellent machinability and thermal and electrical conductivity. In combination with modern computational approaches such as topological optimalization, additive manufacturing of copper has a great potential. My work has focused on creating a sample with the highest relative density through the application of recoating and remelting strategies. The best specimens which reached relative density over 99,1% were created with the following printing parameters: LP = 400 W, LV = 400 m·s-1 a HD = 0,01 mm.
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On the analyses of cutiing tools coated with PVD coatings
Malý, Martin ; Osička, Karel (referee) ; Píška, Miroslav (advisor)
In this diploma thesis, literary research about drilling and coating technology focused on PVD coatings was performed. Furthermore, there is an overview of cutting materials. In the experimental part of the work, the attention is dedicated to tests of twist drills from cemented carbide and high-speed steel materials. For these drills, the feed force Ff and the cutting moment Mc were measured when drilling into austenitic stainless steel. At the end of this work, the technical and economic evaluation of the practical part is presented.
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