National Repository of Grey Literature 195 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
New methods for outer and inner rotary surfaces production.
Urban, Jan ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
This research contains a survey of some methods for outer and inner rotary surfaces production such as turning, grinding, honing, finishing, lapping, drilling, core-drillings and reaming. Comparison of dimensional accuracy and the achievable surface roughness of different methods.
Solution of some rock stability problems in slopes and walls with optimization of anchor elements
Holý, Ondřej ; Vojtasík,, Karel (referee) ; Pruška, Jan (referee) ; Horák, Vladislav (advisor)
This presented phd thesis focuses on the problems of instability in the rock walls and slopes, whose manifestation is among othersv rockfall and associated risks. It describes the theoretical aspects of the description of instability and summarizes the construction methods and technologies to eliminate them. On the basis of knowledge gained from specific buildings in the Czech Republic and based on the research project solved by author, submits suggestion to optimimalization of the anchoring elements as a basic part of most remediation methods.
Solution drilling technologies and clamping units
Adam, Jan ; Kubík, Roman (referee) ; Kalivoda, Milan (advisor)
This Bachelor's Thesis introduces drilling technology, construction of clamping for specific component and its examination in terms of technology and economics.First part of Bachelor's Thesis deals with technology of drilling and with instruments for drilling such as drills and reamers. Next is survey of particular types of drilling machines. Second part of this Thesis is about rules for construction of clamping units and their disposal. Analysis of componet for which is clamping unit constructed. Following by construction of drilling gauge,comparing of incidental times with using the gauge and without using the gauge and finally calculation of investment return in to clamping unit.
Improvement of manufacturing technology of flange
Dvořák, Jakub ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This diploma thesis focuses on improvement of the existing technology of the flange part in cooperation with the company Znojemské strojírny, s r.o. The theoretical part describes the technologies used in machining of the component. Subsequently, cutting materials and aluminum alloys are dealt with. A detailed analysis of the existing technology is performed in the practical part of the thesis followed by rationalization of the production process, which was carried out with respect to time and financial savings. A new technological procedure is developed after the improvement of the current production process. Finally, a technical-economic evaluation of the design improvement process is carried out.
A design proposal and prototype production of the part Capodaster
Remer, Radim ; Chladil, Josef (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with manufacturing of an own capo prototype design with the help of the machining. Further focus is on the used CAD, CAM and milling technologies. The final part of the bachelor thesis is focused on an achieved results and an economic evaluation.
Production of Components with a Combination of Different Technological Processes
Borek, Vojtěch ; Strejček, Jan (referee) ; Kalivoda, Milan (advisor)
The objective of this bachelor’s thesis is to design production of the part with use of several technological processes. Solved project is extractor of steering ball joints for cars. The most important sections of bachelor’s thesis are: description of used technologies, real production of the part in company and evaluation of the results according to different aspects.
Stiffness of Industrial Robot Arm
Vogel, Jan ; Jurčišin,, Miroslav (referee) ; Knoflíček, Radek (advisor)
Stiffness analysis of an arm of an industrial robot with linear kinematics during a drilling operation. For solving this problem are used optical scanners. Finding the optimal cutting force for drilling by criterions: minimal deformation of robots arms and, at the same time, the emerging vibration from the cutting process is also minimal.
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.
The options of production of holes at the tube wall
Vysloužil, Oldřich ; Harant, Martin (referee) ; Peterková, Eva (advisor)
The topic of the bachelor thesis deals with processing and forming of profiles (tubes). In the thesis, the most well-known methods of making a hole in the wall of the tube such as drilling, cutting and milling are introduced. The work is further supplemented by some of the unconventional methods such as Flowdrill, T-drill, or currently the most required machining today – laser cutting. Basic technology process is described for each method, as well as examples of tools and machines are presented. In the end, complete evaluation is presented in the form of an overview of advantages and disadvantages.
Designing and Producing a Differential Holder and Eccentric for a Formula Student Racing Car Using Workshop Oriented Programming and Modern CAD/CAM Technologies
Vejtasa, Vladimír ; Jaroš, Aleš (referee) ; Sedlák, Josef (advisor)
The present master thesis deals with the application of workshop programming and advanced CAD / CAM technology to the design and production of differential holder and eccentric of Formula Student car. The first part characterizes and describes the technology of milling, drilling and boring. There is also a selection of material to be machined, including the characteristics of aluminium and its alloys. The following section describes the construction of differential holder and eccentric in the parametric program Autodesk Inventor and creation of CNC programs using the workshop programming and CAM of PowerMILL system. The conclusion section refers to the production of both components in the training centre BOSCH DIESEL s.r.o in Jihlava. The thesis is concluded with a technical-economic evaluation and analysis of both proposed production variants.

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