National Repository of Grey Literature 239 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Grinding of bearing rings
Hlídek, Petr ; Chladil, Josef (referee) ; Osička, Karel (advisor)
This thesis analyzes the transition from current abrasive to CBN abrasive in Koyo Bearings, Czech Republic s.r.o. There is a theoretical part which contains a brief description of the grinding theory. The experiment for grinding the raceways of bearing rings is performed and evaluated in the practical part.
Part production technology
Uličný, Roman ; Polzer, Aleš (referee) ; Osička, Karel (advisor)
This work deals with the production technology of the plastic part for battery modules. First chapter contains analyzis of fundamental methods of machining, where are general informations about technologies which are used in the company with which one is work cooperated. In the second chapter is solved description of manufactured part and its technological aspects for the production. Next chapter is dedicated for introducing the company and its technological possibilities for the manufacturing. The rest part of the work is dedicated for designing production of the semi-finished product and clamping of the semi-finished product. With the selected variant is solved production technology of the part, where are indicated technological solutions of each operations and production process. In the end is realized technological-economic valorization, where is solved service of more machines and judged cost for production of designed variants.
Inconel 718 machining for aerospace applications
Urbánek, Vojtěch ; Osička, Karel (referee) ; Polzer, Aleš (advisor)
Bachelor thesis is aimed at exploring the properties, usage and issues with milling of the Inconel 718 for aerospace applications. In the theoretical part a study of superalloys and their properties for successfull application in aircraft engines was conducted. Further the machinability classes, cutting materials and process of milling focusing on milling of the Inconel 718 are described. The experimental part deals with measuring and evaluation of cutting forces when milling the Inconel 718 with cemented carbide and ceramic cutting tools.
Cutting of supporting profiles on building
Protivínský, Pavel ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis deals with technology for material cutting on the building site. Firstly, there were described different methods for material cutting, their principle, reached quality of section, demands for requirements on Occupational safety and health (OSH) and there are described different qualification of device operators. Secondly there were described specific condition in a mobile building site. Eventually, there are compared all the examined technologies after the experiment according to different criteria.
Modern CNC machines and their development
Vašíková, Simona ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis is focused on the beginnings of NC and CNC machines from the perspective of historical years, where are included also general information and construction of the most famous machines from history. Also there is their further development, including control system manufacturers and their brief history. The mention of the production of these machines from the perspective of the Czech Republic is included. Part of the thesis is also the division of the current CNC machines according to the type of machined products and the technology together with a sample of 2 selected CNC machines. There is a division of CNC machined parts and evaluation of the use of CNC machines in production. There are the advantages of CNC machines, their accessories and a simple NC program including a product drawing. In discussion there are current technologies in industry, logistics and construction, as well as the current state and attempts to predict future developments.
Application of a measuring probes in milling proces on CNC machine MCV1210
Horáček, Kryštof ; Osička, Karel (referee) ; Polzer, Aleš (advisor)
This diploma thesis focuses on the application of measuring probes in the machining process. The main goal of the thesis is to create sample procedures for measuring cycles and functions in a CNC machining process using MCV 1210 and selected measuring software. In the first part of the thesis available methods of machine measurement are outlined with a great emphasis on the description of measurement principles, construction, and measurement signal transmission methods between tool probes and the workpiece. The second part of the thesis deals with the application of measuring probes in the machining of the designed test piece using the Productivity+TM and Sinumerik ShopMill softwares. The work also includes an economic evaluation of the profit of an investment in the mentioned measuring equipment.
Rationalization of operational planning in production
Jansa, Slavomír ; Chladil, Josef (referee) ; Osička, Karel (advisor)
The aim of this bachelor thesis is to present a proposal of austerity measures that will lead to a reduction of waste in an industrial enterprise in accordance with the concept of lean production. In the first part there is presented an overview of lean production methods and tools for increasing productivity, efficiency and quality of production process. In the second part of the thesis, the results of the analysis are submitted and proposals to implement austerity measures are made.
Rationalization of the production line
Straka, Jiří ; Štipčák, Jaroslav (referee) ; Osička, Karel (advisor)
This masters thesis optimises production of the step plates (which are parts of the sliding steps systems used in tramways, subways, hi-speed trains etc.) to increase the production rate to meet customers demand. The purpose of the work was reached by detailed analysis of the production process followed by evaluation of the results which led to the list of the possible solutions. The solution with the greatest time improvement was chosen and explained in detail.
Evaluation of the Economic Efficiency of the Vineyard Planting
Vitouch, Jan ; Osička, Karel (referee) ; Ptáček, Roman (advisor)
The aim of this bachelor thesis is to economically evaluate the effectiveness of the investment project of Winery X from Hustopece to planting the vineyard and compare it with the alternative variants of the implementation of this project with respect to the findings. The result of this comparison will then be the design of the optimal variant of the investment in the planting of vineyards for the Winery X. The bachelor thesis has two basic parts. The literary research introduces the problems of viticulture with a focus on the issue of obtaining raw materials for wine production and evaluation of investment efficiency. The actual work consists of quantification of capital expenditures and operating costs associated with grape acquiring and harvesting. In connection with the above objective, the costs, the return on investment, the net present value of the investment, and the internal rate of return to the different possibilities of wine grape acquiring are also evaluated.
Rationalization of machining technology
Plančar, Jakub ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
This diploma thesis is focused on a design of rationalization solutions for machining workplace in Siemens Company. The machined pieces are shafts, the basic components of the electric motors. The introductory part of this study describes the theoretical basics of machining technology, especially milling. The next part is focused on the company presentation, the analysis of the existing workplace and its technologies and components. In the following section are selected weaker production sites, and then is presented opportunities for improvement and rationalization of this workplace. Following the elaboration of the selected rationalization solution, along with techno – economic evaluation of the production change, which highlights the results of this study.

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