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Manufacture of knives and their heat treatment
Bukvic, Tomáš ; Doležal, Pavel (referee) ; Němec, Karel (advisor)
This bachelor thesis deals with manual small series production of knives. It presents an overview of used cutlery steels and ushers their characteristics. It deals with the choice of blade geometry and material for a particular knife application. Furthermore, it initiates into the issue of heat treatment of knives, which is absolutely necessary for their functionality. The conclusion includes the documentation of the kitchen knife manufacturing process, which was made for the purpose of this thesis.
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Unconventional methods of processing materials for knives
Bražina, Jakub ; Němec, Karel (referee) ; Doležal, Pavel (advisor)
This thesis focuses on the issue of unconvetional cutlery materials, their application for production, and the processing of a hunting knife. The readers are aquainted with cutlery issues in the search section, where the basic characteristics and properities are written. The next part describes the various metallic and non-metallic materials and their possible properities of processing and production. This thesis also deals with the surface protection of these cutlery materials. The second main part describes construction design, material selection, heat treatment, and with surface treatment of the hunting knife.
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Weapon (not only) as a work of art
Sedláček, Petr ; Šmíd, Jan (advisor) ; Sýkora, Ondřej (referee)
The purpose of this bachelor work is to introduce a small-arms not only as an object for various kinds of practical utilization, but also to afer on thein values from the point of their perception as an art artefact in the linkup on their development in different cultures. It directs also on the region of Japan and samurai swords with reference on their sociocultural value. In the part dedicated to the hand weapons it introduces a history of their creation and methods of their division. In the last part presents the weapon as a device used in the movie industry and in the computer games in the linkup on a weapon presentation as an item of the violence in an up to date society. One of the targets of this bachelor work about weapons is an analyse of the social pathological event of the shooting in the schools so called "school shooting", which becomes very extended phenomen of current days. Work points on the possibilities and reasons of the origin of this phenomen by revealing a possible offender profile and further I introduce a concepts of the school shooting prevention in the linkup on the posibility to reveal potencial offender in time. Benefits of the bachelor work is getting a basic knowledges from the history and hand weapons development section, but also their presentation as an object of...
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Blender Tutorial
Tomšík, Filip ; Žák, Pavel (referee) ; Kubíček, Radek (advisor)
This thesis focuses on the increasingly popular shareware Blender which has growing application possibilities in various branches. The thesis aims at a general description of basic modelling techniques working with mesh objects as well as curves used for creating models and computer graphics. Part of the thesis is dedicated to a description of animation abilities of the programme, an outline of dierent methods and a more detailed description of correspondent modules. The central point of the thesis is to introduce the reader to the basic and advanced modelling techniques and their use in Blender, in the form of a tutorial.
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Technical and economic solving of barking knives
Novotný, Petr ; Hála, Michal (referee) ; Kubíček, Jaroslav (advisor)
The target of the study is theoretical explaining the condition of creation of the soldered point with regard to basic and additional mat. Below, the detailed analysis of the existing technical problem and consecutive design of the solution method.Content of the study is also technological process of production of the barking knife and choice of the efficient producer.
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Calculation of heat and force field UniGear ZS1
Mokrý, Lukáš ; ABB, Drahomír Tůma, (referee) ; Dohnal, Petr (advisor)
The aim of my work is to describe high-voltage switchgear type UniGear 500R, which is part of UniGear switchgears family. I will focus on heating issue of one 500R unit and its parts during operation. Maximum values of this heating is limited by standards and can´t be exceed to ensure safe and reliable operation. That is why the heating tests are necessary part of designing and developing switchgears. Calculation will be made by two different ways. First is classic one-pole heating net method and second is numerical simulation in Solidworks flow simulation program. Except the theoretical description there will be presented also used 3D model and explanation of both method, used to calculation and simulation. Last point of this work is measuring of this type of switchgear and getting real data. The main point there is to compare measured values with values calculated and decide if is possible to simulate tests with appropriate accuracy. Then would be also possible to substitute the real test in laboratory, which costs many thousand crowns and takes lots hours of time. This work is collaborated with EJF division of ABB Company, where I am employed. Heating issues in this company is always on process, because of developing and improving of their products. So this work could be helpful in this field. ABB provides all materials needed, especially technical catalogues, 3D model and final values from laboratory measuring. Support from college faculty is mainly in study consultations and proposing of calculations making. In the end of work will be make final comparison and evaluation of achieved results.
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Production of Knives
Suchý, Jan ; Kalivoda, Milan (referee) ; Polzer, Aleš (advisor)
This theses deals with cold weapons topic. The first part describes historical development of European swords and weapons originating from them. Further on the thesis presents material analysis and comparison of steels used for cold weapons production. It also shows different production methods including a brief note about the difference between forged and gringed blade. Then the thesis outlines differences among various blade shapes and how these shapes define their cutting characteristics and usage. The closing part of the thesis deals with blade geometry and grinding technology.
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Increasing production effectiveness of recycling blade
Kalenda, Jaromír ; Fiala, Zdeněk (referee) ; Zemčík, Oskar (advisor)
The focus of this thesis is the manufacturing of a waste processing knife from DIN 1.2379 steel. The first part of the thesis defines the man hours required by the current standards and describes the actual man hours used at Pilana Knives s.r.o. The next part deals with the original technical procedures of the manufacturing process. The last part of the thesis proposes and analyses a new and more efficient procedure. The thesis concludes with an assessment of the technical procedures and the total manufacturing cost savings.
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Design of garden cutter
Kozel, Martin ; Rubínová, Dana (referee) ; Zvonek, Miroslav (advisor)
The topic of my bachelor’s thesis is the design of garden cutter. The purpose is to combine current trends and technologies with a new aesthetic and ergonomic view. The work contains an analysis of existing products, own design solution, computer visualization and model in 1:1 scale.
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Metallographic analyse of knives. Appendix 2
Hošek, Jiří
Knife from Křeslice grave No.3 and very similar knife No. 53.541 from grave VI from Dobřichov –Pičhora were metallographicaly examined in order to evaluate their original construction and quality of used material. Both of them were found very good, originally forged out of steel and at least the blade from Křeslice in addition most likely carburised in the cutting edge. The blade from Dobřichov-Pičhora revealed traces of piling, which could be done in order to homogenize distribution of carbon. In both cases we can underline very low amount of slag inclusions, what witnesses for precise treatment and forging. In any case we cannot describe original heat treatment (if quenched or not), both the knives however ranked among contemporary high quality products, which were usually made of piled steel and/or carburised in their cutting edges.
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