National Repository of Grey Literature 11 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Design and manufacturing of an engraving LED laser
Hlaváček, Petr ; Kalivoda, Milan (referee) ; Dvořák, Jaromír (advisor)
The bachelor's thesis is divided in two main topics. In first one it characterizes what unconventional machining methods are and divides them into groups according to the material removal effect. Each method is always simply and briefly explained. The purpose of this part is to introduce the unconventional technologies and their use in mechanical engineering. Second major topic follows comparison between beam methods and is dealing with the design and construction of a laser engraver. The goal is to build a prototype that allows not only engraving but also cutting into materials such as cardboard. The primary purpose of this machine is the production of kits for model railroad. The last chapters are about economic evaluation and comparison between made prototype and commercially sold engraver.
Design and realization of CO2 laser with power up to 100W
Šrenk, Jakub ; Dvořák, Jaromír (referee) ; Slaný, Martin (advisor)
This work is focused on the problematics of small CO2 lasers and their possible use for commercial production. The first part describes devices available on the market and evaluation of their parameters. The practical part specifies the parameters that arise from the potential use of technology. Based on these parameters, design of the machine and its complete mechanical design are elaborated. Furthermore, the experimental part deals with the design of structural components, control system, electrical systems and in general a complex technical-technological solution of the equipment, including economic evaluation of the design. Part of the work is also the construction of the machine itself, including activation, adjustment and debugging for the considered production. The constructed machine was subject to testing to ensure required quality of production.
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.
Camera system with wire EDM
Gvizd, Michal ; Mouralová, Kateřina (referee) ; Osička, Karel (advisor)
The thesis discusses an unconventional technology of wire-cut electro discharge machining. In the beginning there is a description of the basic principle, the fundamentals of electro discharge machining and its technological application. Further chapters characterise the wire-cut electro discharge machining, the wire electrodes used, the main parts of the machine, the cutting conditions and the advantages of this technology. The practical part is focused on the possibilities of the camera system during the production on a wire cutting machine and the comparison of nowaday´s machines in the manufacture of precise cutting tools in the middle-sized tool-room.
Automatization of work place with electrical discharge machines
Gašpar, Daniel ; Kubík, Roman (referee) ; Zemčík, Oskar (advisor)
The aim of this thesis is the analysis of the current state in the workplace EDM and suggestion of the automation workplace in tool making "KASKO forms" including techno-economic assessment of the current and suggested solutions on the selected product and quantification of payback period.
The proposal of the base body for wall clock using unconventional methods
Janás, Milan ; Zemčík, Oskar (referee) ; Dvořák, Jaromír (advisor)
This thesis describes the design and manufacture of the basic body clocks using unconventional methods. The work consists of two parts. In the first unconventional methods are discussed in theory explaining the basic principles and methods of use of different methods and their advantages and disadvantages. More details are described two methods, laser and water jet, which are used in solving the practical part of this work. The second part describes a practical solution of the base body using a laser and water jet. The methods are examined in terms of suitability for use and are analyzed their advantages and disadvantages with respect to the manufactured part. In conclusion, these methods are compared from an economic perspective, production time, affecting surface and achieved accuracy. The outcome of this work is to compare the methods used to produce the base body and the assembly of functional clocks.
Chemical Machining Technology
Macháček, David ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
This bachelor thesis describes the most used methods of chemical machining in the industry. There are discussed the basic principles of particular methods, their advantages and disadvantages, as well as their best use in terms of economics. The properties of used chemicals and basic safety in working with them are also mentioned.
Machines for unconventional methods of machining
Zelený, Radek ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This thesis is based on machines for unconventional machining, focusing on laser machining. The beginning of this work is summarized by what are unconventional machining methods that fall into this category and are then described along with their advantages and disadvantages The next section is focusing on laser machining. This chapter deals with machines used for laser machining parts that are convenient for a laser machine, but there is described a process itself that brings a lot of problems, advantages and disadvantages compared to other methods of machining. Finally, various technologies are compared for their suitability and use.
Ultrasonic machining technology
Krajči, Jakub ; Mouralová, Kateřina (referee) ; Osička, Karel (advisor)
The main aim is of the thesis is to provide information about ultrasonic machining, to introduce ultrasound and its physical properties, to describe ultrasonic machining methods and to show the non-destructive use of ultrasound. Furthermore I will hold a discussion about this topic and make a quick summary.
Methods of machining difficult-materials
Šebela, Radek ; Prokop, Jaroslav (referee) ; Kalivoda, Milan (advisor)
The aim of this bachelor thesis is a comprehensive analysis of various types and methods of machining difficult-materials. In addition an overview of selected tool materials for machining difficult-materials and factors affecting the cutting area. At the end an overview of companies that are engaged in machining these materials.

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