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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
601

Analýza procesů obrábění kovových materiálů se zaměřením na energetické aspekty / Analysis of machining processes of metallic materials with a focus on energy issues

Szlaur, Vít January 2012 (has links)
A general analysis of machining problems, analysis of cutting forces for turning, milling, drilling. Evaluation of experimentally measured values of surface structure and theoretical values of cutting forces in turning cylindrical parts. Economical processes for the comparable results of the final state of the surface.
602

Návrh výrobní technologie FDM tiskové hlavy / Creation of production technology for FDM print head

Talafa, Michal January 2012 (has links)
The thesis is focused on the creation of production technology for unit and series production for FDM print head. Production will be set in a private company Pevot product, s.r.o. For the production will be used machines, tools and technologies that the company commonly uses. On the basis of creation of production processes will be calculated price of the print head and it will be compared with the price of a similar product currently available on the Internet. After comparing the company may decide , if itself will produce and offer on the market.
603

Návrh na zefektivnění procesu obrábění ojnice / Design of increase in efficiency of machining of connecting rod

Holub, Milan January 2012 (has links)
This diploma thesis deals with a machining process of the forging of connecting rod in the company SANBORN a.s mainly for reason to propose a more effective method of machining. The first part is focused on the analyse of actual process of production which is realized on several manufacturing machines. On second part are proposed the increases in efficiency of single machining operation and is used the modern multi - fuction machining centre OKUMA MULTUS which will increase the productivity and quality of machined part. In final part is applied for evaluation of machining and secondary production times and is performed the total financial analyse.
604

Možnosti zefektivnění procesu obrábění ve výrobě těles VE, VP30 / Options of efficiency increase of machining process in the production of VE and VP30 bodies

Švaříček, Petr January 2012 (has links)
Master thesis describe machining process in production of units VE, VP30 for rotary injection pumps in specific conditions of the BOSCH DIESEL compa-ny in Jihlava with intention to offer an possibilities of machining process effi-ciency optimization. The introduction describes the history of the company and product range. In the second part is carried out evaluation of current state of machining process at a specified section. The main part of the master thesis analyzes and examines the leading options to more efficient machining process and propose specific options for improvement with regard to the requirements of production and quality systém. The conclusion includes evaluation of the proposed actions.
605

Obrábění kalených ocelí / Machining of quenched steels

Kosmák, Jaroslav January 2013 (has links)
Diploma thesis deals with machining of hardened steels. In the introductory section it is described the physical process of cutting and basic used technologies of machining. The next chapter provides an overview of cutting materials. Other chapters deal with the workpiece material and heat treatment. Furthermore, there is made a comparison of the cutting conditions while machining of hardened steels by tools from selected manufacturers. As the conclusion there is the economic evaluation.
606

Hodnocení finanční situace podniku / The Evaluation the Financial Situation of the Firm

Zeman, Karel January 2013 (has links)
The aim of this master’s thesis is to propose the steps leading to the improvement of the financial situation of a mid-sized manufacturing company. In order to achieve this aim, the financial analysis is performed. It defines the company’s weaknesses and it serves as a background for a suggestion for corrective actions leading to the improvement. Based on the measurability of the corrective actions, the comparison of the current and predicted situation is made in the final conclusion. It is realized with the Index IN05 bankruptcy model. The corrective actions proposed aim in particular at the operational and production management. They focus mainly on the weaknesses defined by the financial analysis – reduction of inventories and increase of marginal profit in order to strengthen liquidity, reduce debt ratio and improve financial health score in general.
607

Volba a optimalizace řezných podmínek pro progresivní výrobní technologie / Data selection and optimisation of cutting conditions for progressive production technologies

Caha, Tomáš January 2015 (has links)
This thesis contents theoretical description of methods for choosing and optimization of cutting conditions for progressive machining technologies. Especially it is concerned on CNC machining. The aim of experimental part of work is to set cutting conditions and simultaneously to achieve the most economical solution under current production conditions of the company. The product must also comply with required quality, roughness of the surface and geometrical precision.
608

Návrh na zefektivnění procesu obrábění válcové součásti pro ropné vrty / Efficiency Improvement Proposal of Machining Process of Cylinder Component for Oil Wells

Koudela, Michal January 2015 (has links)
This diploma thesis is concerned with a proposal for increasing the efficiency of machining when manufacturing an inner sleeve at the company Sanborn a.s. In the diploma thesis, the technology used for machining itself is first briefly described, followed by a description of the original production technology including a description of machine and hand tools used and cutting conditions. The next part of the paper describes the proposal for increasing the efficiency of machining operations. The proposal includes a description of the suggested solution that will lead to increased efficiency, a machine proposed for the specific operation, appropriate tools and proposed cutting conditions. The benefits of implementing the proposal are also described here, both in terms of saving unit time, and in terms of the machining technology itself, where, for example, the formation of chips is improved, the inner tension of machined components reduced, etc. The diploma thesis further includes a technical-economic evaluation assessing the economic benefits of the changes introduced.
609

Multifunkční obráběcí centrum pro rotační i nerotační obrobky / Multifunctional machining centers for machining rotating and prismatic parts

Grätz, Tomáš January 2014 (has links)
In this master's thesis is elaborated lay-out, calculations and technical drawings to multi-function machining center. Here is applied solution with vertical carousel combined together with the upper gantry milling machine. The aim of my work is to design a compact milling ram allowing turning and milling in deep slots or next to the tall walls of the workpiece. Furthermore here is elaborated lay-out of automatic tool change with magazine and lay-out of clamping exchangeable milling heads. Emphasis is placed on the manufacturability and reliability of the whole structure.
610

Multifunkční obráběcí centrum pro rotační i nerotační obrobky / Multifunctional machining centers for machining rotating and prismatic parts

Kunorza, Michal January 2014 (has links)
Objective of the diploma thesis is design of multifunctional machining centre, where is machining rotating and prismatic parts enabled. Because it is large theme, thesis is solved by group. My task was to design parts of mottion axes. Diploma thesis contains complex design of machine tool from discovering optimal kinematics for required applictaion, analysis of influences acting to machine, modular concept and design solution.

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