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Production and sharpening tools produced on CNC tool grinder
Zdařil, David ; Zemčík, Oskar (referee) ; Dvořák, Jaromír (advisor)
The aim of the thesis is to analyze the production of tools on CNC tool grinders. The work includes the introduction of a production machine, a brief overview of monolithic tools and grinding wheels. The most important is the practical part, which is focused on the physical preparation of the tool with suitable geometry for the given application and its subsequent sharpening, the last part is devoted to the economic evaluation of the tool production.
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Techniques Used for Image Blurring and Sharpening
Lichý, Stanislav ; Juránek, Roman (referee) ; Venera, Jiří (advisor)
This bachelor's thesis deals with methods of digital image filtering. First of all, it contains basic notions necessary to understand problems, such as digital image, pixel, color spaces, noise and noise types. Secondly, important algorithms of image sharpening and noise reduction are described. Then, algorithms working principles are explained. Achieved results are analyzed together with a discussion about algorithms suitability and their time complexity. Lastly, selected algorithms are implemented by C++ programming language, using an open source library OpenCV.
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Techniques Used for Image Smoothing, Blurring and Sharpening
Kubínek, Jiří ; Šilhavá, Jana (referee) ; Venera, Jiří (advisor)
This work is dedicated to methods used for digital image editing. It defines fundamental terms for this work as color space or noise. Above all, it analyses methods allowing image sharpening and blurring. It describes some of the most known algorithms from the theoretical point of view, but also introduces their implementation in C programming language. There are compared according to time complexity. The purpose of this work is to introduce digital image filtering and demonstrate elementary procedures used for their implementation.
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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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Research of a Cutting Tool with a Diamond Active Part
Trčka, Tomáš ; Mrkvica, Ivan (referee) ; Chladil, Josef (referee) ; Polzer, Aleš (advisor)
The submitted dissertation is focused on research in the field of milling tools with a diamond active part when machining one of the difficult-to-machine materials (Ti-6Al-4V). The first chapters are dealing with a theoretical analysis of a given workpiece material and polycrystalline diamond (PCD) as a super-cutting material. One of the theoretical chapters is also focused on tool sharpening technologies, for which the hardness of a diamond is no longer a crucial factor. The main part of the dissertation is the design, construction and production of tools taking into account the technological design, along with the application of modern trends and technologies enabling innovation and progressive design – from the perspective of macro/micro tool geometry and insert sharpening technology. The research was focused on the application of own inserts on the insert rake face and specific sharpening technologies EDMG, WEDM and LASER. One modification of the face of the PCD insert with a laser was subsequently applied to prototype circle segment end mill. Detailed analysis of manufactured tools and workpiece material was performed by electron, optical and digital microscopy. The measured parameters in the subsequent analysis of the machining process were force loading, tool wear, temperature measurement using a thermal imaging camera and analysis of the machined surface in the form of microhardness and roughness measurements.
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Production and sharpening tools produced on CNC tool grinder
Zdařil, David ; Zemčík, Oskar (referee) ; Dvořák, Jaromír (advisor)
The aim of the thesis is to analyze the production of tools on CNC tool grinders. The work includes the introduction of a production machine, a brief overview of monolithic tools and grinding wheels. The most important is the practical part, which is focused on the physical preparation of the tool with suitable geometry for the given application and its subsequent sharpening, the last part is devoted to the economic evaluation of the tool production.
|
|
|
Techniques Used for Image Smoothing, Blurring and Sharpening
Kubínek, Jiří ; Šilhavá, Jana (referee) ; Venera, Jiří (advisor)
This work is dedicated to methods used for digital image editing. It defines fundamental terms for this work as color space or noise. Above all, it analyses methods allowing image sharpening and blurring. It describes some of the most known algorithms from the theoretical point of view, but also introduces their implementation in C programming language. There are compared according to time complexity. The purpose of this work is to introduce digital image filtering and demonstrate elementary procedures used for their implementation.
|
|
|
Techniques Used for Image Blurring and Sharpening
Lichý, Stanislav ; Juránek, Roman (referee) ; Venera, Jiří (advisor)
This bachelor's thesis deals with methods of digital image filtering. First of all, it contains basic notions necessary to understand problems, such as digital image, pixel, color spaces, noise and noise types. Secondly, important algorithms of image sharpening and noise reduction are described. Then, algorithms working principles are explained. Achieved results are analyzed together with a discussion about algorithms suitability and their time complexity. Lastly, selected algorithms are implemented by C++ programming language, using an open source library OpenCV.
|
|
|
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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