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Laser micromachining
Láznička, Pavel ; Daněk, Ladislav (referee) ; Mrňa, Libor (advisor)
This thesis deals with lasers, their general theory and application. Then a theoretical part describes laser micromachining and engraving. Experimental part of thesis deals with several experiments performed by powered fibre laser which is not primarily intended for the field of micromachining. Experiments were mainly evaluated by several types of microscopes where the amount of removed material was appraised. By particular experiments removed material was in accordance with used working parameters of laser and a significant role plays machining material. It emerges from the experiments that for the field of laser micromachining and engraving shorter pulses are more suitable (minimal pulse duration was 1 ms in experiment) and it is connected even with a way of removing material. Applied powered laser can be used for micromachining in specific fields of production.
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Effective milling tools
Paseka, Petr ; Osička, Karel (referee) ; Humár, Anton (advisor)
The topic of this bachelor thesis are effective milling tools. First chapter is focused on description of the basic milling characteristics. Distribution and description of milling tools from the point of view of their construction, material, use and labeling is in the second chapter. Last chapter contains selection of three types of milling tools and cutting materials from two important producers and their comparison. The types of milling tools are face milling tools, radial slot milling tools and shoulder milling tools. The home producer is Pramet Tools s.r.o and the world producer is Sandvik Coromant.
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Manufacturing of part of garage automatic door lock by compound tool
Vaverka, Ivo ; Šlais, Miroslav (referee) ; Peterková, Eva (advisor)
This master’s thesis created in the master studies of the M-STG Manufacturing technology is focused on the manufacturing of a part of a garage automatic door lock by a compound tool. The part is made of a rolled steel coil of the S275JR material with the thickness of 2 mm. The number of parts manufactured per year equals to 600 000. Literary studies deals with the issues of cutting and bending. On the basis of the most advantageous manufacturing variant and technological calculations the compound tool is designed. As a working machine the eccentric press LEK 160 is chosen. In the economical evaluation part, the calculations to finding out when the manufactory becomes profitable are carried out.
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Influence construction details on the cost of the work
Vondálová, Ludmila ; Aigel, Petr (referee) ; Výskala, Miloslav (advisor)
This bachelor thesis deals with the influence of the choice of material ceilings on the total price of the ceiling construction. In the theoretical part are generally defined ceiling structures, their requirements, types of ceilings by material and also the basis of valuation of construction works and supplies. In the practical part, ceiling structures above the 1st floor are proposed, which are calculated in the budget. Finally, I analyze the influence of material selection on the price of designed ceiling constructions.
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Apartment house
Petr, Zdeněk ; Mikošek, Marek (referee) ; Hlavačka, Tomáš (advisor)
The subject of the thesis is the development of project documentation for building permit apartment building. The building is located on the outskirts of the village Svijany. The terrain is slightly sloping. Near the plot was carried out geological exploration. The foundations are made with concrete passports. Floor plan of the house is rectangular. The house is made of brick masonry technology blocks Porotherm. The house is covered with a gable roof with tin roofs with a slope of 15 °.
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Cost Analysis of the family houses
Novotná, Lenka ; Aigel, Petr (referee) ; Výskala, Miloslav (advisor)
This thesis has been written for the purpose of acquiring results which would help a builder with choosing material and construction method with respect to price. The thesis deals with comparison of construction costs when utilizing contemporary materials and using various possibilities of construction itself.
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Surveying of the Chapel of the Evangelical Brethren Church in Husinec municipality
Linzmajerová, Jana ; Ježek, Jiří (referee) ; Bartoněk, Dalibor (advisor)
The thesis deals with the surveying of the Chapel of the Evangelical Brethren Church in the town of Husinec, where the exterior end the main room were surveyed. First, the building is presented. Then, preparation work, surveying methods and their processing are described. Next, the process of producing documentation is introduced. The documentation consists of a floor plan, elevations and a wireframe. The following part compares the surveying and the production of the wireframe with and without topological codes in a point list. The last chapter deals with the visualisation of the surveyed chapel. It describes generation of materials and their application, illumination settings and rendering of images of the visualised chapel.
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Spiral conveyor
Žádník, Lubomír ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The bachelor thesis deals with the design of a spiral conveyor. In the introduction is presented conveyor theory including its use and description of the basic parts. The following part describes the design calculation and selection of individual components from the specified parameters. Finally, a brief assessment is made. Everything is documented by the drawing file documentation, the list of items, and the assembly drawing.
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Cost analysis of building objects
Gregovská, Kateřina ; Zimmermann, Lukáš (referee) ; Výskala, Miloslav (advisor)
The aim of the thesis is to analyse the costs of civil engineering structures in terms of their distribution according to construction or other parts. The first part of the thesis focuses on the cost analysis of sewer lines. The analysis is made on several dozen budgets of real sewer lines, where the technical parameters, economic parameters, parameters on debris generated and costing parameters are compared. From all numerical parameters, the minimum, maximum, average and median values are then evaluated. The next part of the thesis deals with the creation of budgets per 1 mb for excavation in grassed area, road and pavement. The budgets include certain parameters that were found from the previous analysis. The budgets created are then used to determine the change in total cost with changes in excavation depth and pipe diameter. Also, as these parameters change, the labour, the amount of debris removed, backfilling with reused and new soil, and disposal of excavated soil to the landfill are examined. The main purpose is to combine the comparison of all the parameters and find the optimal solutions. In the final stage, the prices of the individual sewer line budgets are compared with the price indicators.
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Methods of Machine Tool Thermal Error Compensation
Hanzal, Jiří ; Hermanský, Dominik (referee) ; Minář, Petr (advisor)
Thermal error caused by the thermal deformation is one of the most significant factors influencing the accuracy of the machine tool. This paper presents an overview of the methods of measurement, regulation and compensation of thermal errors. It also deals with the research of research centers and their projects. At the end of the thesis we are dealing with measuring of temperature deviations on machine tools MCV 754 Quick. For the tested machine tool, a methodical proposal of temperature compensation was designed using the grey neural network model with convolution Integral. This paper aims to give a basic introduction of the whole process of the spindle thermal error compensation.
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