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Selection of appropriate technology for the production of welded constructions of boiler JE 12 and JE 6
Janás, Milan ; Slaný, Martin (referee) ; Dvořák, Jaromír (advisor)
The diploma thesis on the selection of appropriate technology to produce the welded construction of electric boiler JE6 / 12 aims to evaluate available production technologies and choose the most suitable of them. Choosing the technologies focuses primarily on those that are available at Slokov. Due to the connection of the welding robot to the production, it is necessary to consider the overall connection of the production and the high accuracy of the production. The individual methods of production, material separation, welding, bending and surface treatment are first theoretically analyzed and their advantages, disadvantages and parameters are summarized. Subsequently, it is practically tested individual technologies for a representative part and it evaluates the achieved parameters and economics of production. With the results obtained, the most suitable technologies are selected. With the selection of technologies, there is a need for a change in design and production parameters. Changes and modifications to the design describe another point. To achieve maximum efficiency and quality of production, a welding robot is used to make welds. The description of the production, modifications and overall design of the robot describes the next point of this work. The last part summarizes the economics of selected production technologies and details the technological process. The aim of the thesis is to design such technologies that will be advantageous from the point of view of the economy and from the perspective of the available possibilities of the company.
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Optimizing the production process chamber 80C
List, Jaroslav ; Zemčík, Oskar (referee) ; Dvořák, Jaromír (advisor)
The aim of this bachelor thesis is to suggest optimisations of the production process of chamber 80C at various stages of production and assess their applicability. The main emphasis is on reducing production costs. In the first chapter we analyze specifications and requirments of the customer. There is a suggested optimisation of procedures. In the theoretical part of thesis we analyze materiál, welding methods and production technologies used to manufacture parts of the working chamber. In the practical part we assess the applicability of possible methods of welding and cutting. We will choose parts of the weldment suitable for optimization and dedicate the optimisation suggested in the first chapter. In the conclusion we assess the optimisation suggestions from the economic point of view.
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Comparative Study of Enviromental Aspects of Different Non-conventional Cutting Technologies.
Muzikant, Dušan ; Dvořák, Jaromír (referee) ; Slaný, Martin (advisor)
This thesis deals with possible impact of non-conventional cutting technologies on enviroment and human body. In the first part of this thesis are described characteristics and working principle of particular methods. In the second part there are detail solved enviromental aspects of four methods whit focus on the filtration machine systems or recycling of used materials, through which was the sample produced. During the production there were watched avalible parameters, which served for final compare of basic enviromental aspects of these four methods.
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Turning of steels at low depths of cut
Tichá, Dana ; Dvořáková, Jana (referee) ; Dvořák, Jaromír (advisor)
Thesis is devoted to the analysis of the competition of indexable cutting inserts, which are used for turning at lower cutting widths of the blade than the tip radius. Thesis is an analysis of five indexable cutting inserts from diferent companies. Furthermore the chip breakers of selected inserts are compared and finally the testing of the insert and its results based on metal chip shapes are described.
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Comparison of the drilling process on samples of material
Furch, Michal ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
According to the name we can judge, that this research work is interested in comparing drilling technologies. The introduction of work includes different types of tools and machines to production interior rotated holes, another part continues with dissertation about drilling preparatory and tools materials. The end of work describes the experiment about drill interior rotated holes.
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Draft of production of creative designe lamp by unconventional methods
Mecová, Kamila ; Sliwková, Petra (referee) ; Dvořák, Jaromír (advisor)
This thesis aims to present a design and production of a decorative body of a lamp made by using unconventional technologies. The work is divided into several parts. The first part presents the individual methods of producing the decorative body design in details; these methods are then compared. The following part deals with a 3D model design and its gradual modifications which had to be implemented due to feasibility of the lamp assembly. The final part of the work is dedicated to an experimental production of the decorative body. As a result, the produced parts are assessed in terms of cutting roughness, production time, and pricing. The output of this work is two lamps; a table lamp and a pendant lamp, both of which include a decorative body which is cut using unconventional methods, namely by a laser or a water jet.
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Coating methods for cutting tools
Novotný, Michal ; Dvořák, Jaromír (referee) ; Humár, Anton (advisor)
The bachelor thesis titled Coating methods for cutting tools describes techniques of deposition of hard abrasion resistant coatings by physical and chemical methods. The thesis contains the partition of the materials for cutting tools, description of producing cutting inserts made from sintered carbides, basic types of coating layers and comparison of coated sintered carbides in the assortment of selected manufacturers. There is also an outline of some trends in the area of coating methods at the end of the thesis.
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