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Coating of tools by the PVD HiPIMS technology
Havlíková, Tereza ; Ohnišťová, Petra (referee) ; Píška, Miroslav (advisor)
This bachelor’s thesis is aimed on the study of PVD coatings of tools with a focus on HiPIMS (High Power Impulse Magnetron Sputtering) technology. As part of the research, the PVD coating methods are presented, then the basic physical processes and characteristics of magnetron sputtering are described and finally the HiPIMS technology is analysed. The aim of the experimental part of this study is to evaluate (Al,Ti)N coating deposited by HiPIMS technology on a wire drawing die. For coated and uncoated die, the wear of the die, surface quality and thermal impact on the wire are observed and compared.
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Modern surface coating of cutting tools for machining
Tříletý, Vlastimil ; Ohnišťová, Petra (referee) ; Píška, Miroslav (advisor)
This bachelor thesis consists of two main parts. The theoretical part generally describes methods for coating cutting tools, wear mechanisms of cutting tools and experimental evaluation of coating properties and evaluation of tool life. The practical part is focused on the evaluation of tool life based on the observation of the development of wear using a scanning electron microscope.
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Modern methods of coating of cutting tools and their application
Kolenič, Michal ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This study is aimed on PVD coatings with focus on one of the more advanced PVD methods – high-power impulse magnetron sputtering (HIPIMS). This study aims to describe mechanical and structural proprieties of multiple types of PVD coatings. Experimental part of this study aims to analyse mechanical proprieties and durability of cutting tools with coatings created using HIPIMS methods. The experimental part of this work results in comparison of cutting moments of cutting tools coated with TiN and TiAlN using HIPIMS and a cutting tool without coating.
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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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A Study of HIPIMS Coating Technology for Cutting Tools
Havlíková, Hana ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
The aim of this work is an introduction to the method PVD focusing on method HIPIMS and its comparison with conventional DC Magnetron Sputtering. Part of the experimental part is an exploration of the mechanical and lifespan characteristics of the stalk drills with coating AlTiN applied by HiPIMS technology. The objective is to characterize these properties and to compare them to the characteristics obtained by classic coating PVD methods.
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Coating of tools by the PVD HiPIMS technology
Havlíková, Tereza ; Ohnišťová, Petra (referee) ; Píška, Miroslav (advisor)
This bachelor’s thesis is aimed on the study of PVD coatings of tools with a focus on HiPIMS (High Power Impulse Magnetron Sputtering) technology. As part of the research, the PVD coating methods are presented, then the basic physical processes and characteristics of magnetron sputtering are described and finally the HiPIMS technology is analysed. The aim of the experimental part of this study is to evaluate (Al,Ti)N coating deposited by HiPIMS technology on a wire drawing die. For coated and uncoated die, the wear of the die, surface quality and thermal impact on the wire are observed and compared.
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Probe diagnostics of the pulse-generated plasma
Turek, Zdeněk ; Tichý, Milan (advisor) ; Kaňka, Adolf (referee)
The subject of the bachelor thesis is the plasma diagnostics in the planar magnetron and in the hollow cathode system operating in the pulse mode, when the plasma is generated by DC pulses. The diagnostics method used will be the Langmuir probe. The aim of the thesis is the construction of the computer-controlled electronic measuring system and its assessment when measuring the parameters of argon discharge plasma in both systems with time resolution i.e. depending on time during one pulse period.
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Diagnostics of plasmas for technological applications
Turek, Zdeněk ; Kudrna, Pavel (advisor) ; Kousal, Jaroslav (referee)
The subject of the master thesis is the extension of the measurement of plasma para- meters by the Langmuir probe in a system with a planar magnetron and a hollow cathode operating in pulse mode. The main tasks are to modify the measuring circuit to increase the maximum probe current and to put the USB oscilloscope into operation for data collection with higher resolution and higher sampling rate. Furthermore, the function of the entire device will be verified using test circuits and also by measuring the probe characteristics in discharges in a system with a magnetron and a hollow cathode in both continuous and pulse mode. 1
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Modern surface coating of cutting tools for machining
Tříletý, Vlastimil ; Ohnišťová, Petra (referee) ; Píška, Miroslav (advisor)
This bachelor thesis consists of two main parts. The theoretical part generally describes methods for coating cutting tools, wear mechanisms of cutting tools and experimental evaluation of coating properties and evaluation of tool life. The practical part is focused on the evaluation of tool life based on the observation of the development of wear using a scanning electron microscope.
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Diagnostics of plasmas for technological applications
Turek, Zdeněk ; Kudrna, Pavel (advisor) ; Kousal, Jaroslav (referee)
The subject of the master thesis is the extension of the measurement of plasma para- meters by the Langmuir probe in a system with a planar magnetron and a hollow cathode operating in pulse mode. The main tasks are to modify the measuring circuit to increase the maximum probe current and to put the USB oscilloscope into operation for data collection with higher resolution and higher sampling rate. Furthermore, the function of the entire device will be verified using test circuits and also by measuring the probe characteristics in discharges in a system with a magnetron and a hollow cathode in both continuous and pulse mode. 1
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