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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.
171

Výroba prototypu lovecké kuše / Production of a hunting crossbow prototype

Ventruba, Petr January 2021 (has links)
This master's thesis deals with the manufacturing of a hunting crossbow prototype. The first part summarizes the history of crossbows, their historical development and usage. The following chapter contains theoretical knowladge about the technological methods that are used in the production. This is followed by a designing of the prototype, creating a technological process and final production. Final part of this thesis evaluates individual parts of the production and the final prototype.
172

Studie ekonomiky technologie obrábění / The Study of Economics of Tooling Technology

Ondrášek, Dušan January 2008 (has links)
The aim of this diploma thesis addresses issues related to obtaining methodology for the production manager´s decision-making process in the field of technology selection, suitable tooling and cutting tools selection for a specific order or particular production plan. Evaluation of the manufacturing process while taking into consideration complexion of process controlling and contexture to the economy of this process. Analysis and evaluation of technological and economical aspects of a manufacturing process of the CNC chip machining in a real environment is targeted on the field of tooling, its selection, purchase, economy and consumption. The process controlling of technology is based on this analysis as well as the formulation of measuring by economic indicators such as economy, productivity, profitability etc. The analysis of important factors and parameters of this process demonstrated an influence on economy of the company. Several model cases have been created from the company records and from the provided research, the output of which became a basic methodology. The output of the analysis indicates possible directions of a management decision making. Thanks to a complex technical-economic view this thesis can serve as a methodological instrument for decision makers in the field of technology and cutting tool selections as well as an economy of production process improvement.
173

Racionalizace malosériové výroby výpalků v podmínkách firmy PARS Nova a.s. / Rationalization of small-lot production of slops in conditions of company PARS Nova a.s.

Jurka, Pavel January 2008 (has links)
Analysis of the technological possibility ray methods of protoplasm, laser and water jet on the part of needs company Pars Nova a.s.. Propsal concrete of unconventional method. Process layout and exigencies of working designed method. Security and ecological diversification of designed method. Technical – economics evaluation contribution designed of unconventional technology.
174

Optimalizace technologie součásti "nosná deska" ve firmě PROMAT Vsetín / Optimalization technology of production "nosná deska"-part in condition firm PROMAT Vsetín

Juráň, Jaromír January 2008 (has links)
Valorization and analysis of machining technology for the production of aluminium part and consecutively project optimization part production. New advanced cutting tools selection and application of new technologies. The adjustment and simplification of the existing NC program for given CNC machining centre and its final debugging. In the final part, there is an economical and technical evaluation of firm benefits and recommendations into production.
175

Technologické, ekonomické a ekologické aspekty obrábění za sucha / Technological, economical and ecological aspects of dry machining

Vostřel, Josef January 2009 (has links)
Using of process liquids improves the procedure and results of machining, on the other hand, increases costs and raises some ecological and hygienic issues. In the work there is gradually analyzed mechanism of chip formation, progress and distribution of heat and thermal fields as well as economic and ecological aspects of dry machining and influence of dry machining on durability of tools. In the experimental part there are evaluated data which were measured during the drilling of cylindrical workpiece with regards to progress of workpiece thermal fields while using various kind of tool coating. In the final part there are stated recommendations for practice.
176

Technologie obrábění tvrdých materiálů nástroji s definovanou geometrií břitu / Hard machining with defined geometry edge tools

Bukáček, Zdeněk January 2009 (has links)
This master’s thesis is concerned with subject matter hard machining with defined geometry edge tools. Aim master’s thesis is analysis and parameters evaluation machined surface at hard machining. This master’s thesis contain a characteristic of hard materials, used technology for cutting operation, but also tools and cutting conditions suitable for hard machining. In the conclusion are parameters evaluation machined surface the workpiece.
177

Nekonvenční technologie obrábění vodním paprskem / The unconventional Technology of Cutting Water Jet

Šimíček, Václav January 2010 (has links)
This diploma thesis deals with the unconventional technology of cutting water jet. The aim of this thesis is analysis of technological possibilities of water jet, possible operating modes (techniques) and entering technological data and influence of technical parameters on quality and accuracy of cutting. The thesis contains several experiment at which was examined achieved quality and accuracy of cuts, and simultaneously there is solved technoeconomic evaluation of this technology.
178

Nekonvenční technologie elektroerozivního drátového řezání. / Unconventional Technology of Wire Electrical Discharge Machining.

Svoboda, Jiří January 2010 (has links)
This thesis deals with technology of electric discharge machining with emphasis on application of the principle of material removal on wire cut electric discharge machine. The main part is concentrated on wire cut electric discharge machining in terms of a small tool making shop. The goal of the thesis is to create a wire cut electric discharge machining workplace in the company with a focus on the production of cutting tools. The thesis defines requirements for each component of cutting tools and strategies for their machining. Machining of model part and subsequent technical - economic evaluation is included in the final part.
179

Výroba prototypu automobilu s využitím moderních metod a technologie CAD/CAM / A car prototype manufacture using modern methods and CAD/CAM

Horák, Aleš January 2010 (has links)
The project developed under the engineering studies, solves the problem of production of a prototype car using modern technology, reverse engineering and CAD / CAM. Based on the literary study of the issue, was designed process of digitization of the physical model of car, including the treatment and processing of data. Follow-up step was to verify the production of the additive rapid prototyping technology - FDM method. Verification of the results was performed on a vertical milling cantilever FV 25 CNC with control system Heidenhain iTNC 530 using a cutting strategies by PowerMILL CAM software. At the end of the resulting models edit as necessary.
180

Třískové hospodářství obráběcího stroje / Cutting farm machine

Hon, Pavel January 2011 (has links)
This project is devided to three parts - theoretical overview of cutting farm components, design of cutting farm for specified production cell and the design of chip conveyor for specified cuting machine. Theoretical overview introduces common commercial used components of cutting farm, their properties and using possibilities in particular regarding their applicability at cutting farm design and chip conveyor design. In the second part there is proposal of design of cutting farm for production cell consist of six identical multi-function machinig centers. For produced amount of chips there is proposal of their processing from the begining at cuting proccess up to their leavig production hall as a briquetts in a containers. At last part of this project there is complete design proposal of chip conveyor for mentioned multi-function maching center. Design is built from a basic line diagram up to design of particular components including calculations and analysis.

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